News - GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG

News - GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG

GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG



News - GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG

Newsgrafik #35776

Precise temperature monitoring in systems and piping with new temperature sensor ...  (Company news)

... in the GEMÜ range

The new GEMÜ 3240 temperature transducer/switch now allows precise temperature monitoring in systems and piping across an even broader measuring range.

Photo: Temperature sensor GEMÜ 3240 with various process connections of metal and plastics

The GEMÜ 3240 temperature transducer/switch supersedes the existing GEMÜ 3220 product range with immediate effect. The new sensor's high-quality measuring cells are able to withstand media temperatures of between -40 °C and +150 °C and operating pressures of up to 160 bar while maintaining an accuracy of 0.35% FSO.
In addition to the considerably broader measuring scope, the new series scores highly in terms of its wide range of features. For demanding acid/alkali applications, all media wetted parts are available with PVDF encapsulation, for example.

IO-Link for intelligent networking
With an IO-Link interface, the GEMÜ 3240 temperature transducer/switch can be used centrally to automate and monitor processes. This is beneficial for system networking, for example, as it makes components compatible with one another and facilitates parameterization and data transmission.
The rotatable LED display is another advantage: The 4-digit display allows the current operating parameters to be viewed in any installation position.

The new GEMÜ 3240 temperature transducer/switch can be used for a wide variety of applications. The sensor is a reliable temperature measurement and control instrument for use in cooling circuits or for monitoring sterilization processes. It is suitable for a huge variety of media, such as highly viscous or contaminated media. In addition, the high-quality material from which the sensor is made means that it is able to withstand even chemically corrosive media.

With its 3140-series pressure transducer/switch, which it launched back in 2018, GEMÜ has already been able to boast state-of-the-art measurement systems for measuring and controlling pressure. This device is now joined by the new temperature sensor, which broadens the scope of the measurement and control systems range.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #35682

Electric, efficient, eSy – valves with new motorized eSy actuators   (Company news)

Ingelfingen-based valve specialist GEMÜ is further expanding its product range of motorized diaphragm, globe and diaphragm globe valves.

For several years now, the processing industry has been increasingly looking for alternatives to pneumatic actuators. Electric valves are an option. These have particular appeal on account of their cost efficiency and performance. The reduced risk of contamination and the application in a wide variety of plants are also positives in favour of electrically operated valves. The valve manufacturer GEMÜ is responding to these customer requirements by further expanding its selection of motorized valves with the launch of the GEMÜ eSyLite, eSyStep and eSyDrive valves.

A low-cost plastic diaphragm valve for simple and cost-sensitive applications is available in the form of the GEMÜ R629 eSyLite. It constitutes a cost-effective alternative to solenoid valves made of plastic or motorized plastic ball valves.

The GEMÜ eSyStep valves are designed for standard open/close and simple control applications. With regard to the actuator, this is a compact spindle actuator with step motor. Via the interface in the housing cover, the valve can be extended with additional accessories such as diverse electrical position indicators or travel sensors to provide extra functions. GEMÜ eSyStep valves are available in globe valve, angle seat globe valve and diaphragm valve versions made of metal and plastic but adapting to M-block valves is also possible.

The GEMÜ eSyDrive valves are available for variable and complex open/close and control applications in conjunction with high requirements on performance and service life. The actuator is based on the hollow shaft principle. Both the Ethernet-based eSy-web interface, in conjunction with an integrated web server, and the Modbus-TCP communication interface, enable the exchange of parametrization and diagnostics data and the networking of several devices. If necessary, users can also benefit from a range of integrated functions such as stroke limiters and speed settings.

This provides customers with a wide product range of electric valves both for industrial processes and for applications with particularly high purity and hygiene requirements. With the different GEMÜ eSyLite, eSyStep and eSyDrive ranges, valve solutions are available for every price and function segment.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #34701

More flexibility, precision and ease of maintenance for filling processes  (Company news)

The ever-increasing variety of beverages, liquid foodstuffs and pharmaceuticals presents major challenges for plant operators and plant designers. Manufacturers are placing more and more emphasis on customized solutions when it comes to container shapes, in order to stand out from the competition. This also applies to plant design. Maximum flexibility is often incompatible with low conversion and maintenance costs.

The valve specialist GEMÜ is reacting to these increased requirements by bringing an innovative filling valve platform to the market. It is based on the GEMÜ PD design that won the "ACHEMA Innovation Award". This new sealing concept comprises a highly resistant plug diaphragm (PD) made of modified PTFE (TFMTM). This enables hermetic separation of the actuator parts and the product area, a high number of switching cycles and extremely precise dosing. At the same time, the patented cartridge spare parts system makes maintenance very simple and fast, eliminating long downtimes. The valves are FDA- and USP Class IV-compliant and meet the requirements of "Hygienic Design" and the Food Contact Materials Regulation (EC) No. 1935/2004. The GEMÜ filling valve platform currently comprises a pneumatically operated GEMÜ F40 filling valve and a motorized GEMÜ F60 filling valve.

The pneumatically operated GEMÜ F40 filling valve meets the high standards expected of an aseptic valve for use in the pharmaceutical and foodstuff industries. High Kv values and precise, fast activation in conjunction with a compact design mean that the GEMÜ F40 filling valve is suitable for any pneumatically operated filling processes. Where necessary, a variety of accessories from GEMÜ's wide range, such as a stroke limiter or positioner, can be adapted for use with the GEMÜ F40 filling valve.

The GEMÜ F60 filling valve can be actuated in real time and is controlled electronically, meaning that it will be significantly easier for users to adjust or rearrange the filling machine when changing the medium or filling container in the future. By precisely following freely programmable filling curves, it is possible to implement optimal quantity control and filling speed for each medium and filling container. The servo actuator is particularly impressive thanks to its high positioning accuracy of up to 10 µm and a travel speed of up to 200 mm/s. A controller can be used to connect the motorized filling valve directly to the software-controlled central machine control for the filling machine. This makes it particularly suitable for use in linear or circular fillers, for filling medicinal products or for filling infusion bags. The GEMÜ F60 filling valve generates no exhaust air; as a result, it can even be used in cleanrooms or insulators.

Together, the GEMÜ F40 and GEMÜ F60 filling valves represent the foundations of the new GEMÜ filling valve platform. The range is currently being individually expanded in order to create a modular platform that can be combined with individually designed filling stations.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #34627

GEMÜ honoured as 'Global Market Leader' for 2018 – the third year in a row  (Company news)

The Ingelfingen-based specialist in valves has been awarded the title of "Global Market Leader" for yet another year, earning the distinction for 2018 as part of the global market leader index of the University of St. Gallen and the Academy of German Global Market Leaders.

For the third time in succession, the German business magazine WirtschaftsWoche has awarded the family-owned enterprise GEMÜ Gebrüder Müller Apparatebau GmbH & Co. KG the WirtschaftsWoche quality seal of "Global Market Leader", declaring them "champions" of 2018. In doing so, WirtschaftsWoche has recognised GEMÜ's inclusion in the global market leader index in the segment "Valves and automation components: Valves, Process and Control systems for sterile applications".

The global market leader index is compiled under the scientific direction of Prof. Dr Christoph Müller of the HBM Unternehmerschule (school for entrepreneurs) at the University of St. Gallen, in cooperation with the Academy of German Global Market Leaders (ADWM). In doing so, objective selection criteria and transparent selection processes are developed to determine the actual global market leaders. The information acquired is then scientifically evaluated and the results are published in a condensed form.

The researchers designate companies as "Global Market Leader Champions" where they are – among other criteria – represented on at least three continents with their own production and/or sales companies, have an annual turnover of at least €50 million, are first or second in the relevant market segment, and can demonstrate an export share or foreign share of at least 50% of their turnover. Another important criterion for a company to obtain the accolade of "Global Market Leader Champion" is to be (owner-)managed with headquarters in the German-speaking region (Germany, Austria or Switzerland).

As a family-owned, owner-managed business headquartered in Ingelfingen-Criesbach (in the German state of Baden-Württemberg), with 27 subsidiaries as well as six manufacturing sites in Germany, Switzerland, China, Brazil, France and the USA, GEMÜ fully satisfies these requirements. In addition to these prerequisites, it was the cutting-edge technology and market leadership in the field of valves, process and control systems for sterile applications that served as a crucial factor for WirtschaftsWoche in awarding the accolade and WirtschaftsWoche quality seal of "Global Market Leader 2018 – Champions" to GEMÜ.

"We are proud to be represented as a global market leader in the current index and for the third year in a row. This award from WirtschaftsWoche has shown and confirmed to us that it is truly worth focusing on customer requirements, product quality and the continuous further development of our product range," says Gert Müller, Managing Partner at GEMÜ. "As it is based on scientific methods," he adds,"this award serves as confirmation of GEMÜ's worldwide success and its dominance of the technological market."
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #34512

Extended actuator and nominal size range of GEMÜ 567 BioStar control valve   (Company news)

The aseptic GEMÜ 567 BioStar control valve is now available up to a nominal size of DN25, thus allowing a maximum flow rate of 15 m³/h. At the same time, the selection of motorized actuators for this valve has also been extended.

In order to expand the product range of valves for hygienic, sterile and aseptic applications to include a highly precise control and regulating valve, GEMÜ, one of the world's leading manufacturers of valves, measurement and control systems, first developed a completely new sealing technology that provides the optimal addition to the established aseptic GEMÜ valve range. With 567 Biostar control, based on GEMÜ PD design, this novel generation of valves has been designed specifically for the control of small flow rates in the pharmaceutical, food, and biotech sectors.
The PD design means that the moving parts of the actuator are hermetically separated from the product area. This hermetic separation also enables the actuator to be replaced under pressure, with no risk of media contamination.

In addition to existing commercially available versions with manual and pneumatic actuators, the new motorized versions have now been fully developed for the market. The motorized version of the GEMÜ 567 Biostar control valve is the world's first real-time-enabled control valve. The combination of PD design and electric actuator as a stainless steel version makes this valve a top choice for the control of small volumes in the pharmaceutical and biotechnological industries, in applications without compressed air, or particularly for applications with stringent precision and speed requirements. The running times of the plants can be greatly extended thanks to the long service life of the PD diaphragm (more than 7 million cycle duties), the low-maintenance design and the operator replacement when medium is present. With the expansion of the range of nominal sizes to include DN 25, GEMÜ has now extended the kv range up to approx. 15 m³/h.

The GEMÜ 567 Biostar control valve is intended for all control processes in hygienic and sterile areas, right up to aseptic plants in the pharmaceutical, biotechnology, and food and beverage industries, as well as for industrial processes and corrosive media. The PTFE seal system means it is perfectly suited and completely harmless to be used with media containing oil and fats. The valve is suitable for the precise control of small quantities in medical and food engineering (milk, yoghurt, cheese production), the pharmaceutical industry, and in cosmetics. Due to the wide variety of combination possibilities of actuators, bus systems and controls, it can also be adapted for all possible processes according to customer requirements, including real-time applications.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #34202

A new approach to service - Learning for the future with virtual reality  (Company news)

The high-quality valve, measurement and control components that GEMÜ produces are important elements of a technical processing plant. Proper installation and maintenance are therefore necessary in order for the plant to operate efficiently and in optimal cycles.

In this regard, the best possible form of interaction between manufacturers, plant designers and operators is required so that the product can be operated faultlessly throughout its entire life cycle, from the commissioning through to the servicing.

GEMÜ's Service Business Segment bundles together the activities in the after-sales sector, which can currently be divided into three main areas:

Technical training
Through a multi-stage training system and individual training models, customers are introduced to the functional principle of GEMÜ valve, measurement and control components in thorough detail. This consequently ensures that assembly and service personnel have all the necessary knowledge and tools to install and service these high-quality products. Exceptionally skilled technical trainers with many years of experience in the sector continue to pass on knowledge using the latest teaching methods, whether this takes place in the GEMÜ training centre at our site in Criesbach or at our customers' sites all over the world. An innovative and specially developed VR (virtual reality) training programme for GEMÜ CONEXO is just one example of how we are facilitating even more in-depth (i.e. immersive) learning among our participants. Using an application, the necessary actions can be performed, studied and subsequently tested. Thanks to the complete immersion in the learning content, the knowledge that is passed on can then be summoned even quicker in the field.

The training courses are carried out fully in line with the customer's individual requirements with regard to time, location and content. Training courses that accompany servicing, or take place directly in advance of this, are also possible.

In-house and field service
A well-trained squad of service engineers is not only in an ideal position to advise the customer on site in all matters relating to the commissioning of valve, measurement and control components, but can also support customers in inspections, servicing and upgrades. Repair and maintenance of GEMÜ components can be carried out at the Criesbach service centre or directly on site. To ensure the comprehensive efficiency of your machines, our service specialists are available for valve-related plant screenings and technical questions. If you wish, GEMÜ's qualified fitters can also assume responsibility for the component inventory, data management and retrofitting for CONEXO.
For all questions relating to after-sales service, our experts at GEMÜ can be contacted by telephone or e-mail.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #34162

Precise pressure monitoring in systems and piping  (Company news)

GEMÜ's new 3140 series pressure gauges facilitate precision measuring across a wider range of pressures and temperatures. With these latest additions to their product portfolio, Ingelfingen-based valve specialists GEMÜ are modernising their range of measurement systems.

As part of this update to their range of pressure measurement systems, GEMÜ will be replacing the type 3120 with the new pressure transducers and pressure switches of the GEMÜ 3140 series. Compared to its predecessor, the new product range impresses with a far broader measuring scope, as well as a number of electrical design features and important approvals.
The GEMÜ 3140 series is designed for both liquid and gaseous media at pressures of between 0 and 40 bar and temperatures of between -40 and +125 °C. The integrated high-quality ceramic sensor reliably converts the pressure into a proportional electrical signal – at an accuracy of 0.5% FSO in accordance with IEC 60770.

IO-Link for intelligent networking
In order to optimize adaptability for different applications, all the standard electrical and mechanical connections are provided. With an IO-Link interface, the GEMÜ 3140 pressure transducers/switches can be used centrally to automate and monitor processes. This means leakages and gauge pressure can be detected early for instance.

The pressure measurement devices in the GEMÜ 3140 series can be used for a variety of industrial applications. Besides calculating the process pressure and measuring a pressure differential, the GEMÜ 3140 pressure transducers/switches can also be employed to reliably control, measure and monitor the level during filling processes. The integrated sensor is suitable for use with both highly viscous and contaminated media and, thanks to its high-quality material selection, it can even be used with corrosive media, such as for demanding applications with acids and alkalis.
GEMÜ 3140 products have been certified in accordance with UL, SIL2 and IECEx. Both the explosion-proof and the SIL versions are available as options. Depending on the version, the product can also feature a rotatable LED display. This means the user can easily view the current operating parameters via a 4-digit display, no matter where the device is installed.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #33951

Innovation Award for a unique sealing concept  (Company news)

GEMÜ has won the ACHEMA Innovation Award 2018 with their PD design.

In the "Valves and seals" section, the company's innovation across the entire line convinced the jury of experts that they were worthy winners. This is because the innovative diaphragm sealing (plug diaphragm) means that, on valves, a hermetic partition from the actuator and, simultaneously, a more precise ability to regulate flow than you find on common solutions can be implemented.

The constantly increasing requirements with regard to hygiene and operational safety in the pharmaceutical sector, biotechnology industry and in the foodstuff and beverage industries led to this company from Hohenlohe carrying out extensive research and development work. The result is a highly resistant PTFE diaphragm, which can be installed in all conceivable applications in aseptic and hygienic process plants. The new GEMÜ sealing principle has proved to be ideal for control tasks, ultra-pure water applications and filling processes in particular.

On the "Pharmaceutical engineering" shortlist, the GEMÜ 567 BioStar control control valve with PD design was also nominated as one of five products from reputable manufacturers. The valve is especially suitable for the precise control of small quantities in the medical industry, the pharmaceutical industry and the cosmetics sector. One of the shortlists also included the F40 and F 60 valve types for aseptic fillings in the pharmaceutical and biochemical sectors as well as for drinks filling. The real-time GEMÜ F60 with PTFE diaphragm solution, which enables complete filling cycles in less than 400 ms, scored points in the "Packaging and fluid filling applications" category.

In addition to the products mentioned, GEMÜ also uses a modified version of the PD design in the iComLine product range. The valves and multi-port valve blocks made from PTFE, PVDF, PP or PVC are, for example, successfully used in systems with ultra-pure processes as well as in chemical handling and when dosing corrosive media.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #33941

New filling valve platform with innovative PD design  (Company news)

Valve specialist GEMÜ based in Ingelfingen, Germany is laying the cornerstone for the latest generation of filling valves with the F40 and F60 valve types.

Thanks to close contact and communication with plant engineers and operators working in the area of filling processes, GEMÜ has been able to build up considerable expertise in this field over time. This has meant that we have been able to develop solutions to the widest variety of challenges relating to this area in years gone by. GEMÜ is continuing this tradition with the introduction of a new filling valve platform.

The use of the GEMÜ PD design has made it possible to securely isolate the moving parts of the actuator hermetically from the product area while simultaneously achieving a high number of switching cycles. This means that what has become known as the lift effect, in which the remains of the product are transported through the inserted spindle into areas in the actuator which are not to be cleaned, is excluded. In addition to the improved ease of cleaning of the media-wetted area, the valve stands out thanks to its extremely compact design and the ability to quickly and easily replace worn parts. Besides the conventional pneumatic variants, a motorized version with an innovative generation of drives is also available.

Both the GEMÜ F40 and GEMÜ F60 valves have a number of areas of application in virtually all filling processes in the hygienic and aseptic sector. Due to the one-piece PTFE seal that is used, the two valve types are also suitable for media containing oil or fat.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #33819

New filling valve platform with innovative PD design  (Company news)

Valve specialist GEMÜ based in Ingelfingen, Germany is laying the cornerstone for the latest generation of filling valves with the F40 (photo) and F60 valve types.

Thanks to close contact and communication with plant engineers and operators working in the area of filling processes, GEMÜ has been able to build up considerable expertise in this field over time. This has meant that we have been able to develop solutions to the widest variety of challenges relating to this area in years gone by. GEMÜ is continuing this tradition with the introduction of a new filling valve platform.

The use of the GEMÜ PD design has made it possible to securely isolate the moving parts of the actuator hermetically from the product area while simultaneously achieving a high number of switching cycles. This means that what has become known as the lift effect, in which the remains of the product are transported through the inserted spindle into areas in the actuator which are not to be cleaned, is excluded. In addition to the improved ease of cleaning of the media-wetted area, the valve stands out thanks to its extremely compact design and the ability to quickly and easily replace worn parts. Besides the conventional pneumatic variants, a motorized version with an innovative generation of drives is also available.

Both the GEMÜ F40 and GEMÜ F60 valves have a number of areas of application in virtually all filling processes in the hygienic and aseptic sector. Due to the one-piece PTFE seal that is used, the two valve types are also suitable for media containing oil or fat.

Both of the first valve types of the new filling valve platform will be presented to the public later in the year, at the ACHEMA trade fair in June.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #33852

GEMÜ strengthens its industrial business and acquires new sales markets  (Company news)

When we think about GEMÜ, we often – justifiably so – have a picture in mind: Aseptic stainless steel diaphragm valves. The family-owned enterprise from Baden-Württemberg in Germany has enjoyed a prominent position as market leader in sterile applications for the pharmaceutical and biotechnology industries for many years. GEMÜ is very much at the cutting edge of these sectors worldwide. However, the manufacturer's expertise in valves, measurement and control systems goes far beyond this.

Plastic valves are inextricably linked with GEMÜ. One of the first valves was made from PVC and has proven to be extremely resistant for over 50 years. Even if the robust range of products, comprising butterfly valves, ball valves as well as globe and diaphragm valves, was rarely at the forefront, it was always there in the background: GEMÜ products have been working reliably in the broad industrial market too for decades – all around the globe.

With an advanced, international growth strategy and associated goal to acquire new sales markets in the area of industrial applications, GEMÜ has therefore undergone organisational restructuring. "Our orientation in the market – starting with sales, but also covering product advice right through to product management – has in the past not been sufficiently focused on the industrial market.
However, this has now changed," explains Joachim Brien, Head of the Industry Business Unit. "Since 2017, we have been pooling our strengths into one business area in order to be able to better meet our customers' various requirements. By interlinking our sales activities with the specialists from the application and engineering areas, we are creating a competence centre for customer-orientated valves and controls solutions."

But what does this mean specifically? If we want to offer genuine advantages, we need to put ourselves in the customer's situation. Only in this way can we offer application-specific, integrated solutions. This is why an international team of 100 engineers and developers, design engineers, product managers and sales employees are working closely together in the Industry Business Unit and specializing in new markets. Industrial water treatment, the chemical industry, surface finishing, mechanical engineering as well as power generation and environmental engineering are the key sectors in which GEMÜ will increase its attention in the medium and long term. All activities here revolve around professional project monitoring by specialists in technical advice and sales. The Industry Business Unit team knows both the markets and the requirements of the customers and uses this knowledge to lay the foundations for innovative, intelligent valve solutions.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #33379

Even at high temperatures and under compressive stress: GEMÜ 677HP PurePlus ultra-pure ...  (Company news)

... diaphragm valve

Thanks to making consistent improvements to processes and investments in state-of-the-art manufacturing technologies, valve specialist GEMÜ can offer its customers plastic diaphragm valves with a significantly higher pressure-temperature rating.

Numerous applications in the semiconductor, foodstuff and pharmaceutical industries benefit from plastic diaphragm valves with a high pressure-temperature rating. They ensure safe operation not only at high temperatures but also under high pressures. The diaphragm valves in the GEMÜ 677HP PurePlus series exhibit improved properties with regard to the relationship between pressure and temperature. This makes them perfect for treating and distributing high-temperature ultra-pure water (hot deionized water) and means that they play a direct role in ensuring the reliability and efficiency of users' production processes.

Users working in the semiconductor industry need a downstream cleaning process with ultra-pure water in the wet process section in order to remove the caustic agent. To minimize cleaning times, they use high-temperature ultra-pure water (between 60 °C and 90 °C). However, the chemically aggressive properties of high-temperature ultra-pure water pose a challenge for the process valves. All the valves that come into contact with high-temperature ultra-pure water must be able to guarantee resistant and low-maintenance sealing at elevated and varying temperatures. This is made possible by the reliable valve seat seal used in the diaphragm valves in the GEMÜ 677HP PurePlus series, which is capable of withstanding high loads. The integrated sealing contour in the chemically resistant valve bodies made of Solef PVDF, combined with the precision-fit GEMÜ PTFE diaphragm, makes the diaphragm valve suitable for this demanding application. The results of extensive qualification and fields tests – as well as feedback from long-standing customers – have gone into optimizing the valve seat seal. This means that the GEMÜ 677HP PurePlus valve can be reliably employed in an ultra-pure water treatment system even at media temperatures of between 60 °C and 80 °C, and at an operating pressure of 5.9 to 7.9 bar (depending on the media temperature).

The valve body of the GEMÜ 677HP PurePlus is available both in a 2/2-way version and in a T-body configuration with a nominal size of DN 15 to DN 100. A lockable, low-maintenance bonnet ensures operational safety, and can be delivered with an integrated electrical position indicator upon request.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #33182

A retrofit solution for holistic system life-cycle management  (Company news)

Valve specialist GEMÜ is expanding its CONEXO range to include a retrofit solution for existing systems, as well as a cloud connection.

GEMÜ CONEXO is an innovative and holistic solution for life-cycle management of all types of systems. The system currently consists of valves that are equipped with RFID chips and a corresponding IT infrastructure.

Thanks to serialization, every relevant valve component, such as the body, actuator or diaphragm, can be clearly traced and read at any time using the RFID reader – the CONEXO pen. The CONEXO app, which can be installed on mobile devices, not only facilitates and improves the "installation qualification" process, but also makes the maintenance process much more transparent and easier to document. The app actively guides the maintenance technician through the maintenance schedule and directly provides him with all the information assigned to the valve, such as test reports, testing documentation and maintenance histories. The CONEXO portal acts as a central element, helping to collect, manage and process data.

Now the range is being expanded to include a retrofit solution. With CONEXO Retrofit, it is possible to retrofit GEMÜ valves in existing systems and to retrofit products from third-party providers with GEMÜ CONEXO, and to integrate these into the intended software environment. To identify the plant components, various options are available, depending on the requirements: Plastic shield with cable tie, adhesive labels for plastic components, and captive stainless steel seal.

The product range is also supplemented by a cloud solution. This does not require local installation of the CONEXO portal. This type of connection facilitates network-independent access to data stored in the cloud from anywhere in the world.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #32858

The big specialist for small quantities – GEMÜ 567 BioStar control  (Company news)

The GEMÜ 567 BioStar control valve is the new, safe solution for media controls from 0.08 to 4.1 m³/h.

The sealing takes place via a PTFE diaphragm with PD technology (plug diaphragm), which combines the advantages of a diaphragm valve with those of a globe valve. This valve is available with linear control characteristics and with equal-percentage control characteristics.

Aseptic diaphragm valves are frequently used as control valves for sterile applications. This means that small volumes can only be controlled with an inadequate level of accuracy, or not at all. The new 2/2-way diaphragm globe valve with regulating needle or regulating cone fills these gaps. The actuator is sealed by an FDA-compliant and USP Class VI compliant PTFE diaphragm. In combination with a spring washer, this ensures that the seal is permanently temperature-resistant, meaning that the diaphragm need not be re-tightened. In comparison with bellows valves, cleaning the valve is significantly improved by the hygienic construction.

Further special features include the optional integration of a bypass function and the potential installation of the diaphragm globe valve in a multi-port valve block (GEMÜ M-block). In the bypass version, the angle valve body can be designed with a manually operated bypass or with a pneumatically operated bypass. Both versions allow for easier cleaning and greater flows.

If the GEMÜ 567 BioStar control is integrated into an M-block®, several functions can be implemented in the smallest of spaces. In addition, the space requirement is reduced considerably, and the installation and welding effort are reduced.

The valve is also optimally equipped when it comes to hygienic safety: It meets both the standards of the EHEDG cleaning test and the standards in accordance with the American 3A definition.
The control valve is used, for example, for dosing small quantities in the beverage industry for in-line mixers (for example, for vitamins, dyes and other additives), for controlling sterile steam and air (for example, for DIP processes) or for controlling the inflow and outflow of bioreactors in the pharmaceutical industry

The GEMÜ 567 BioStar control is available in the nominal sizes DN 8 to DN 20. The body is manufactured, as standard, from block material with a grade of surface finish of Ra 0.4 µm. In addition to the PTFE diaphragm, another seal made from FKM is used. One exception here is the 3A version, for which the complete sealing and control element consists of one piece or material (PTFE).
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #32205

Efficient motorized actuator for globe and diaphragm valves  (Company news)

The new GEMÜ eSyDrive motorized actuator sets new standards in the areas of compact design, speed and accuracy.

GEMÜ has designed this new actuator as a response to increasing requirements in the area of motorized valves, while recognising the current trend in the area of process automation. Pneumatically operated valves are increasingly being replaced with electrical versions.

The development of this new actuator has been based on decades of experience in the area of motorized actuators. GEMÜ already boasts a long-established selection of corresponding products in the areas of linear and quarter turn actuators for globe and diaphragm valves, butterfly valves and ball valves.

Functional principle of the new actuator
Designed on the basis of the hollow shaft principle in conjunction with technology that does not use brushes or sensors, the GEMÜ eSyDrive sets new standards in terms of compact design, reliability and accuracy. The self-locking actuator also offers a high level of reproducibility for positioning and is therefore particularly suitable for use in precise control applications. The Ethernet-based eSy-web interface, in conjunction with an integrated web server, enables the exchange of parametrization and diagnostics data and the networking of several devices.

GEMÜ eSyDrive specifications
After starting initialisation, the actuator automatically adjusts itself to the current process valve, enabling the user to carry out commissioning quickly and easily. If necessary, the user can also make adjustments to the integrated stroke limiter as well as the respective end positions. The power supply for the GEMÜ eSyDrive is ensured via a 24 V DC connection.

Depending on the size, the actuator has an actuating speed of between 2 mm/s and 6 mm/s. A mechanical position indicator and an electrical status and position indicator are integrated as standard. The GEMÜ eSyDrive also features a manual override as standard. A suitable emergency power supply module is optionally available. Customers who wish to use the actuator as a control actuator can rely on a design with an integrated positioner or process controller.

Key applications and availability
Motorized valves are primarily used in areas where the use of compressed air is not desired or possible. Large-scale production plants are cited as examples of such areas, as distribution of compressed air is uneconomical in such facilities. Another example of the areas of use of these valves is mobile or decentralized facilities for drinking water treatment.

The GEMÜ eSyDrive is a linear actuator suitable for open/close and control applications. It can be used both in sterile applications in the pharmaceutical and foodstuff industries and in industrial processes. With its hygienic design and robust construction, featuring a protection class of IP 65, this new actuator is highly versatile.
At launch, the actuator size 2 for diaphragm valves with nominal sizes of between DN 40 and DN 65 and for globe valves with nominal sizes of between DN 32 and DN 100 will be available. The new diaphragm valve will be available under the type GEMÜ 649. The globe valve will be available under the type GEMÜ 549. The product range will be developed successively to cover use in globe and diaphragm valves with a nominal size of between DN 6 and DN 150.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #32136

Continuous electronic traceability thanks to valves with RFID  (Company news)

The increasing requirements for documentation and optimization of maintenance processes are also placing increased focus on the individual components within a plant. As an innovative manufacturer of valves, measurement and control systems, GEMÜ recognised this and equipped its valves with integrated RFID chips. This is not only used for continuous electronic traceability but also for direct maintenance support.

The system, referred to as GEMÜ CONEXO, comprises valves with an integrated RFID chip (in the body, diaphragm and actuator), an electronic reading device, the CONEXO pen and IT infrastructure comprising a CONEXO app for mobile end devices and the CONEXO portal server as a central database ideally installed at the operator's premises.

This interaction allows the maintenance technician to call up current information at the valve in the field at any time, for instance the valve description, instructions, test reports or maintenance information.

No online connection is required for this; the data is saved on a mobile end device.
Since the information can be read out at the valve itself, the IQ process (installation qualification) is sped up as the required documents and test reports can be called up and compared quickly and easily.

The CONEXO system also offers major advantages for maintenance processes during operation. The maintenance documentation is processed electronically by the CONEXO app.

The maintenance technician is guided through the maintenance processes, can record the evaluation of wearing parts electronically and verify this via photo documentation.

This allows the data to be recorded electronically in an organised manner and also further processed electronically in a simple manner, whether for the customer's SCADA environment or in the customer's ERP system. The CONEXO portal can be used to analyze the history of operating media sites, even cross-plant. This enables the maintenance intervals to be optimally adapted too.

CONEXO is designed as an open system which means that many other plant components can be managed in the system in addition to GEMÜ valves. The sales launch of GEMÜ CONEXO took place in August 2016.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #32085

Processing industry 4.0  (Company news)

The technical possibilities of digitalisation have great potential for the processing industry too. GEMÜ, the manufacturer of valves, measurement and control systems based in Ingelfingen, is actively leading the way in this field.

At a time when many companies in the processing industry are still asking themselves what Industry 4.0 and IoT (Internet of Things) mean for process systems in general and for their company in particular, GEMÜ became involved with this subject at an early stage and has already developed first elements, such as the GEMÜ CONEXO RFID-based system, so that they are ready for the market:
This was primarily achieved thanks to GEMÜ's focus on genuine customer benefits even during the company's initial consideration of the possibilities of digitalisation.

"This type of system can only impress if the added value for the customer can be identified; in this case, even a conservative industry can come to accept new subjects readily and quickly," states Gert Müller, Managing Partner at GEMÜ and co-initiator of the subject of Industry 4.0 at valve manufacturer GEMÜ.

Another success factor was the cross-sector project work, which made it possible to bring together specialists from the individual disciplines (such as software technology, service, product management, QA and manufacturing) at an early stage to effectively examine the system and the requirements for this system from every angle.

Holding discussions with key customers at an early stage also helped to develop the system quickly and in a customer-orientated manner, and enabled important feedback to be incorporated effectively and early on in the process.
GEMÜ CONEXO, which is primarily concerned with electronic traceability and maintenance support, is only the first step in a whole series of activities relating to Industry 4.0. "The internal work project continues and will produce a whole host of other innovations that many people today cannot even imagine," states Gert Müller.

The valve is integrated into the plant's process landscape to an even greater extent, which will help to operate the plant more efficiently and to further optimize the maintenance intervals.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #31974

Singularly useful - GEMÜ is expanding its single-use range  (Company news)

GEMÜ, the valve specialist based in Ingelfingen, has developed the world's first controllable single-use diaphragm valve, the GEMÜ SUMONDO. The product range now comprises a manually operated version alongside a pneumatically operated solution.

The trend towards simplified upstream and downstream plant designs and the effective prevention of cross-contamination risks means that single-use disposable technology is becoming an increasingly high-profile and important field – especially in pharmaceutical process engineering.
Single-use design is increasingly being used particularly in the manufacture of smaller batch sizes, which are required, for example, in research and pilot plants.

GEMÜ SUMONDO links the valve body and actuator together using a defined process. After the application process, only the valve body is removed, the actuator itself can be reused repeatedly in the plant.
The valve body is manufactured from polypropylene in a cleanroom and is gamma-sterilizable up to 50 kGy. It isolates the working medium hermetically from the environment and from the actuator via a welded diaphragm. The internally welded diaphragm protects the medium from the environment not only during operation, but also after removal of the valve body.

The major advantage of GEMÜ SUMONDO in comparison to conventional pinch valves lies in the precise controllability of processes. Using a tried and tested actuator design from conventional plant engineering, a high degree of flexibility and reliability can be achieved.

The manually operated version has an optical position indicator as standard. The new actuator is manufactured from high-grade plastic. It is gamma-sterilizable and washable. An autoclavable version is planned for the first six months of 2017. The process for selecting the valve body is identical to that for the pneumatically operated version.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #31330

Diaphragm valves for oxygen applications  (Company news)

With immediate effect, the valve specialist GEMÜ from Ingelfingen is offering its customers an extended range of diaphragm valves for oxygen applications.

Diaphragm valves are used in the most varied of industrial sectors for a variety of applications. For the pharmaceutical sector and biotechnology industry as well as the foodstuff and beverage industry, GEMÜ can now offer its customers an extended range of valves and diaphragm materials for oxygen applications. For applications in which gaseous oxygen is used, corresponding approval is required. In Germany, this is assigned by the Federal Institute for Materials Research and Testing (BAM -Bundesanstalt für Materialforschung und -prüfung).

Diaphragm valve GEMÜ 601 for small nominal sizes, valve GEMÜ 650 for small to larger nominal sizes, and filling valve GEMÜ 660 are just a small selection of the stainless steel valves available under the above-mentioned approval. For all valve types, the customer can fall back on the diaphragm materials EPDM or PTFE.

The specified valve and diaphragm designs can cover a wide variety of applications, including with regard to the required operators (manual or pneumatic).
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30867

Compact combi switchbox with high air output  (Company news)

The GEMÜ 4212 combi switchbox with integrated 3/2-way pilot valve is capable of intelligent and precise position detection and has additional diagnosis options.

In comparison to external variants, the integrated pilot valve offers both functional and economic benefits, such as fast reaction times, automatic programming of end positions and lower compressed air consumption. Local programming of the end positions is also possible without a connection to the control unit and without opening the housing. The combi switchbox is designed to be assembled on a variety of medium to large valves with linear actuators using variable mounting kits. In specific terms, this equates to a valve stroke of 5 to 75 millimetres. The colour LEDs of the high-visibility display are very bright and can be seen from all around through the transparent housing cover. A "location function" can be used to activate an optical signal and identify the valve in the plant. High-quality electronic components complemented by a robust yet compact housing produce a qualitatively sophisticated overall image. Thanks to the integrated manual override, the installation costs during servicing work in particular are significantly reduced, as there is no need for electrical energy to supply compressed air to the valve. The combi switchbox is available in a 24 V, AS-interface or DeviceNet versions as well as with an IO-Link interface.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30726

Sophisticated valve designs for filling and dosing processes  (Company news)

Cleverly designed modern valves have now become an essential component of numerous filling and dosing processes. GEMÜ offers its customers a wide range of solutions for carrying out such challenging tasks.

Various requirements are placed on the design of valves, depending on the application and the industrial sector in which they are used. The type of valve and actuator must be matched to the right body material and selected based on the required dosing accuracy, the type of media in use, the aggregate state and the quantity that will need to be dosed or filled.
The valve that is selected varies greatly depending on the particular requirements that it must fulfil: Whether dosing liquid or powdered colouring pigments in the concrete or textile industry, dosing chemicals for use in water treatment and battery production, or dosing aromas or additives. GEMÜ also offers its customers solutions that are suitable for dosing gases, such as the GEMÜ 554 globe valve or the GEMÜ 660 diaphragm valve for filling processes, which can be used when expanding polystyrene foam or filling drinks, for example.

For sensitive media
In addition to resistance to the medium used and the temperatures that will be reached in the process, the switching speed is another key variable that needs to be taken into consideration. Valves in the GEMÜ iComLine® series are used primarily in processes in which having an adequate resistance to media is just as important as the dosing output.
The GEMÜ SonicLine® flowmeter, which takes fully contactless ultrasonic measurements, is another highlight of the product range. An integrated batch control function can be set to actuate the relevant valve.
Offering not only a broad product range but also the GEMÜ modular system means that customers can choose from a wide variety of valves and different design options. As regards the necessary process automation, GEMÜ offers the convenient option to provide its valves with the appropriate positioners and process controllers ex-works.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30626

SIL assessment of GEMÜ products  (Company news)

Together with the independent testing organization EXIDA, GEMÜ has assessed a selection of different products in accordance with SIL.

This assessment according to SIL covers the functional safety of the products and is used to evaluate the systems in relation to the reliability of fail safe functions. The result is safety-relevant design principles which must be complied with in order to minimize the risk of a malfunction. SIL itself is a measure of the probability that a system will correctly fulfil the required fail safe functions for a specific time period.
In addition to pilot valves, the GEMÜ products assessed include globe and diaphragm valves and electrical position indicators.
By assessing the product selection referred to here, GEMÜ is complying with its customers' requirements primarily from the process and manufacturing industries. With the data made available, these can now carry out assessments of entire plants.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30563

Extended portfolio of motorized actuators for quarter turn valves  (Company news)

Picture: GEMÜ 9428

Motorized quarter turn actuators are used, amongst other things, to actuate butterfly valves and ball valves. They can perform simple open/close movements and, depending on the version, also carry out control tasks.

The GEMÜ 9428 and GEMÜ 9468 series have already been established for some time now and boast a robust and reliable design. The special feature of these actuators, in addition to a solid and low-wear design, is the way in which power is transmitted to the shaft of the respective valve.

More specifically, this means that the torque in the end positions with a constant motor load increases and the speed at a constant motor speed decreases simultaneously. This special design feature brings the nominal torque of the actuator into line with the closing characteristic curve of a quarter turn valve. This not only achieves a constant load on the electric motor being used by avoiding peak loads, it also improves controllability.

Comprehensive product range
The new version of the GEMÜ 9428 actuator with a nominal torque of 55 Nm completes the two series. With this extension to the portfolio, we now offer a comprehensive product range with nominal torques from 6 Nm up to 400 Nm. Depending on the version, travel times of between 4 and 29 seconds can be implemented. The actuators feature an optical position indicator as standard, as well as a manual override. The end positions of the quarter turn valve can be adjusted via a microswitch. In addition to an emergency power supply, there is also an option to activate different signalling devices using two potential-free limit switches. A control module can also be integrated.

The GEMÜ 9428 and 9468 motorized quarter turn actuators feature a compact design and can be used not only for GEMÜ butterfly valves and ball valves, but for all valves with a travel range of 90° and a standard flange in accordance with EN ISO 5211. The motor and gearbox are housed in a weather-resistant plastic housing. Both quarter turn actuators are designed for DC and AC operating voltages and can be supplied with different electrical connection options depending on the applications.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30377

GEMÜ 567 BioStar® control - Aseptic stainless steel control valve for small volumes  (Company news)

Aseptic diaphragm valves are frequently used to control sterile applications. However, small volumes can only be controlled with an inadequate level of accuracy, or not at all. GEMÜ has now developed the GEMÜ 567 BioStar® control valve in order to solve this problem.

The GEMÜ 567 BioStar® control is a 2/2-way globe valve with a regulating needle or regulating cone for high control accuracy and precise dosing. The valve seat on both versions is sealed using a soft-seated seal. The actuator is separated from the media-wetted area by an FDA-compliant PTFE diaphragm. This ensures a permanent, temperature-resistant seal and thus meets the high requirements of the pharmaceutical and food industries. Compared with bellows valves, cleaning the valve is significantly improved by the hygienic and minimal deadleg design. It is likewise possible to clean and sterilize the valve using a CIP or SIP procedure.

The valve is also available with an integrated bypass so that the flow velocities required for the rest of the system can be achieved during the cleaning process. At the customer's request, GEMÜ 567 BioStar® control can be integrated into a multi-port valve block. This is another special feature of the valve which not only requires considerably less space in the system, but also significantly reduces the installation and welding effort. All surfaces which come into contact with the product are precision-turned or polished. Furthermore, additional electropolishing can achieve a high surface quality of Ra 0.25 µm. EHEDG certification and testing in accordance with Procedure 3A are currently in preparation. The GEMÜ 567 BioStar® control valve is available as an angled design in nominal sizes DN 8, DN 10 and DN 15.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30332

Standard systems for complex control tasks  (Company news)

At present, control valves are increasingly becoming the focus of a wide variety of applications. In order to provide the customer with a simple selection guide, GEMÜ has now summarized all the relevant components of a control system under the term Process Control System, or PCS.

The PCS type combines the standard GEMÜ control valves with mounting kit, piping system and positioner. In this way, the customer has the option of ordering the appropriate control system and all the necessary components quickly and without error. Each nominal size has two regulating cones (linear and equal-percentage) to choose from as standard.
The operators for the GEMÜ 554 (plastic), GEMÜ 514 (aluminium) and GEMÜ 550 (stainless steel) series are available in the form of actuators.
GEMÜ 1434, 1435 and 1436 have been integrated into the PCS as controllers. The standard versions of each controller are regarded as basic versions. The GEMÜ 514, 530, 532, 534, 550 and 554 series contain the nominal size range of DN 15 to DN 50. The GEMÜ 536 globe valve covers the nominal size range of DN 65 to DN 150.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30264

Focus on safe and intelligent processes - GEMÜ at ACHEMA 2015  (Company news)

GEMÜ focused entirely on the motto "process reliability" at this year's ACHEMA trade fair. As a manufacturer of high-quality products, GEMÜ has always placed great importance on ensuring that these products are manufactured as precisely and reliably as possible. This is what ensures that the customer's systems in which the GEMÜ products are installed can be operated as reliably and cost-effectively as possible.

Perfect examples of current innovations include the impressive new two-piece 5M diaphragm which boasts an even longer service life in conjunction with the tried and tested GEMÜ seal system.
GEMÜ also presented the new 553 distribution valve. Its modular construction offers unprecedented flexibility. This valve is ideally suited for use anywhere where liquids have to be collected or mixed. It is also compatible with the GEMÜ modular system – actuators and sensors can be effortlessly integrated.

Intelligent networking
The GEMÜ F4 stand in hall 8 had a large Y at its centre. It is from here that GEMÜ presented the future of intelligent valve technology – CONEXO. The interaction between valve components equipped with RFID chips and an IT infrastructure, comprising the CONEXO APP and the CONEXO Portal, will actively improve process reliability.
Every valve and every relevant valve component, such as the body, actuator or diaphragm, can be clearly traced using serialization and read off at any time in the system using the RFID reader – the CONEXO PEN. The CONEXO APP, which can be installed on mobile devices, will not only simplify and improve the "Installation qualification" process; it will also make the maintenance process much more reliable and easier to document in the future. The app actively guides the maintenance technician through the maintenance schedule and directly provides him with all the information assigned to the valve, such as test reports, testing documentation and maintenance histories. This will optimize the maintenance processes in the systems and thus make a significant contribution to increasing process reliability.
GEMÜ CONEXO helps customers to understand and interpret the procedures in their systems even better and always with a higher-level objective in mind – to increase system availability.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #30016

Distribute, mix and collect - The GEMÜ 553 distribution valve with modular body concept  (Company news)

Modern and compact valve solutions are much in demand in plant engineering, for use in a wide range of applications. In addition to demanding requirements in terms of pressure and temperature, modular-style and expandable valve solutions are becoming increasingly popular. Through their adaptability to individual situations, a high level of flexibility can be achieved for a range of different applications with the modular GEMÜ 553 distribution valve.
The GEMÜ 553 series consists of high-quality, stainless steel investment cast bodies that can be very easily connected together in series using a tried-and-tested seal system. In terms of actuator unit, pneumatically operated actuators made of stainless steel or plastic are available from the GEMÜ modular system. These can, depending on requirements, be used in combination with a widely varied range of accessories, such as electrical position indicators, combi switchboxes and/or pilot valves.

Versatile application possibilities
Thanks to the diversity of combination options, as well as the technical properties it possesses, the valve can be deployed for a variety of different processes. In this regard, it can be used in applications where an extremely wide variety of different media are distributed, mixed or collected. In particular, the GEMÜ 553 is ideally suitable for the distribution of cooling and lubricating fluids on machine tools. In the mixing function, media with different properties can be mixed together, such as hot and cold water. In the collection application, a same medium is guided in the back flow to a common outlet. In the distribution function, a medium is guided to a variety of different consumers. With the aid of a universal module, it is possible to integrate temperature and pressure measuring directly into the process. Furthermore, media can be separated along the pipe train. As a result, it is possible to control the flow of two media or types of media (e.g. liquid or gaseous) independently of one another via the same valve configuration.
Thanks to the possibility of locking the individual connections in place in 90° increments, the valve arrangement can be ideally adapted to the most different of process and mounting conditions. Female threads in G1/2 and G3/4 are available for the connections. The module can be terminated at a desired point through separate connection and blanking flanges. The valve bodies are designed in pressure rating PN 25 and can be quickly and straightforwardly connected together via a threaded connection. When connected, the valve bodies are mutually sealed using O-rings.

Visit us at the Achema:
Hall 8, booth F4
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #29956

Reliable, flexible and precise - GEMÜ pressure control valves  (Company news)

GEMÜ pressure control valves are manufactured from plastic, require little maintenance and allow flexibility of use, while providing optimal pressures in the most varied of process plants.

Pressure control valves control the upper pressure limits, lower the pressure or balance out pressure fluctuations. Three versions are available depending on the operation required. The valves can be obtained in the nominal sizes of DN 10 to DN 100.
The desired pressures can be conveniently adjusted according to requirements using a set screw. Excellent flow rate values are guaranteed by the flow-efficient design of the valve bodies, which have minimal deadleg. The pressure control valves can be installed regardless of position and no auxiliary power is required for operating the equipment. Hermetic separation of the actuator from the medium ensures long service life and operational safety.
All media wetted parts are manufactured from high-grade plastic and can withstand even corrosive media. Depending on the area of application, the customer can choose from a range of different materials for the body and seal material. A range of different connection types is also available.

Visit us at the Achema: Hall 8, booth F4
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #29682

Globe valve with membrane actuator adept at control tasks  (Company news)

The universally compatible GEMÜ 536 globe valve has a robust design and is reliable in operation. This valve was developed with a long service life and low maintenance requirements in mind.

The GEMÜ 536 pneumatically operated 2/2-way globe valve has a low maintenance membrane actuator which can be controlled by inert gaseous media. The valve plug is fixed to the spindle in such a way as to allow flexing during closure in order to ensure tight shut off. Steel and PTFE as well as a fibre glass-reinforced PTFE version are available as seats.
The valve spindle is sealed by a self-adjusting gland packing. This provides a low-maintenance and reliable valve spindle seal even after an extended period of operation. The wiper ring which has also been introduced additionally protects the gland packing from contamination and damage.
The customer has a choice between cast stainless steel 1.4408 or SG iron GGG40.3 (available from the beginning of 2015) for the material of the valve body. A flange in accordance with EN 1092 or ANSI cl. 125/150 RF is available for the piping connection.
A good flow rate and controllability is achieved due to the globe valve design. Standard regulating cages are used in the control valve design. Thanks to the high-quality design, GEMÜ 536 is also suitable for high operating temperatures and pressures. A version according to ATEX is also available as an option.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #29562

Contactless flow measurement for critical media  (Company news)

Reliability and precision are key characteristics of the C38 SonicLine® flowmeter from GEMÜ. The device, which was originally developed for the semiconductor market, is perfectly suited to applications in other sectors of industry, thanks to the high standard of quality and versatile basic functions.
The ultrasonic sensors integrated in the SonicLine® log up to 250 measured values per second. This means that heavily fluctuating flow rates can also be precisely detected. All medium wetted components are manufactured from ultra-pure PFA. The electronic measuring equipment comprises a housing made of PP material and is encapsulated during production. This means that all electronic components are hermetically sealed to the outside. This type of manufacturing ensures that the device is especially insensitive to corrosive ambient conditions.
The GEMÜ C38 SonicLine® flowmeter is especially suitable for use in conjunction with ultra-pure media, such as DI water, for example. However, corrosive chemicals, such as sulphuric acid, caustic potash solution or hydrofluoric acid, can also be conducted without any problems. The device can also be used in processes which need to be completely metal-free. In addition to pure flow measurement, SonicLine® is also used for dosing applications. The valve actuation required for this can be carried out by the integrated electronic system. This also offers additional functions, such as an empty pipe signal or limit value alarm. Users can make use of an additional interface package, allowing connection to a PC, which can also serve as a power supply. Multilingual software is available to enable individual adaptations by the customer. In addition to an integrated totalizer, the current flow can also be displayed, and all of the basic settings that are required for the operation can be checked and changed.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #29179

Controlled process reliability with GEMÜ SUMONDO®  (Company news)

GEMÜ, the leading manufacturer of valves, measurement and control systems for the pharmaceutical industry, has developed the world's first Single-Use diaphragm valve. GEMÜ SUMONDO® represents the long-awaited paradigm change to Single-Use design: From manual systems to automation-capable and controllable plants for faultless operation and continual documentation by the plant monitoring system.
The trend towards simplified upstream and downstream plant designs and the effective prevention of cross-contamination risks means that Single-Use disposable technology is becoming an increasingly high-profile and important field – especially in pharmaceutical process engineering.
Single-Use design is increasingly being used particularly in the manufacture of smaller batch sizes, which are required, for example, in research and pilot plants.

CIP/SIP processes are no longer required
The secondary processes for cleaning and sterilisation (CIP/SIP) that are well-known and required for classic stainless material plant designs are in practice no longer necessary at all with Single-Use plants and processes. The necessary purity is guaranteed through the sterilization by gamma rays of all the process components used. This not only reduces the investment costs of such a plant, but also eliminates extremely time-consuming cleaning validation for operating media that are no longer required.
GEMÜ SUMONDO® links the valve body and actuator together using patent-pending locking technology: After the application process, only the valve body is removed, the actuator itself can be reused repeatedly in the plant.
The valve body is manufactured from polypropylene in a cleanroom and is gamma irradiated up to 50 kGy. It isolates the working medium hermetically from the environment and from the actuator through an ultrasonically welded TPE diaphragm. The medium remains closed off from the environment by the welded diaphragm not only during operation, but also after removing the valve body.

Reproducible and documentable procedures
The major advantage of GEMÜ SUMONDO ® in comparison with conventional pinch valves lies in the exact controllability of processes. Using a tried and tested actuator design from conventional plant engineering, the actuator can also transmit feedback to the plant monitoring system as required to ensure complete monitoring of the controlled system. This means that pharmaceutical processes can be more easily documented, reproduced and validated.
The increased levels of automation also mean that the systems are less likely to have faults.

GEMÜ SUMONDO® is initially available in three valve body versions in the nominal sizes 3/8" to 1" with hose barb or clamp connection. The body is available as a straight way, T- and angle valve (right) design. The products are already in use in several testing facilities at development partners.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #29102

Innovative stainless steel globe valve for controlling small volumes  (Company news)

GEMÜ further expands its expertise in the control valve sector with the innovative Type GEMÜ 566 globe valve.

The GEMÜ 566 stainless steel globe valve has a valve body in which the control mechanism is already integrated. In addition to a pneumatic actuator, there is also a manually operated version and a motorized version.
By integrating the control mechanism into the valve body, it is possible to subsequently switch from a manual actuation type to an automated actuation type at any time. The particular advantage of this is that the components involved are located outside the medium-wetted area. This means that from the start, the plant operator enjoys a very high degree of flexibility with regard to potential changes to their operational processes. The medium-wetted part is separated from the control mechanism by an additional separating diaphragm. The diaphragm is available in EPDM or FPM materials. The investment casting, stainless steel valve body has a threaded socket and is available in the nominal sizes DN 8 to DN 15.

The GEMÜ 566 valve was developed especially for controlling small volumes and provides a flow rate from 63 up to 2500 l/h. For all three actuation types, there are options for optical and electronic position feedback. The motorized version can also be equipped with a positioner. The same applies to the pneumatic actuator, for which a process controller is also available as an optional extra.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #29068

Extending the range of diaphragm valves for the GEMÜ 673 series  (Company news)

Originally, this specially sealed version was developed from the GEMÜ 601, 612 and 673 basic types to suit particular customer requirements, and the new GEMÜ 673P9 version will now extend the current portfolio.
The manually operated valve is available in nominal sizes DN 8 to DN 50, and has an additional seal provided by silicone O-rings which seal the interior of the bonnet housing from the outside. This prevents, among other things, lubricant which is normally used for lubricating the spindle, from leaking when autoclaving. It also prevents moisture and dirt from entering the bonnet interior.
The GEMÜ 673P9 diaphragm valve is autoclave-capable and sterilizable, as well as CIP/SIP capable.
As with the basic types, a standard seal adjuster and optical position indicator are also integrated in the new version. Thanks to their compact design, the valve bonnets are also suitable for use on multi-port valve blocks and tank valves.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28937

Extending the range of globe valve bodies  (Company news)

The globe valves in the GEMÜ 505, 507, 550, 554 and 555 series have been tried and tested for use in various main and auxiliary processes for hygienic applications. To complete the range of globe valve bodies, an additional design has now also been included.

For the valve ranges provided, a stainless steel investment cast body is now available in nominal sizes of DN 15, 20, 25, 40, 50 and 65, with integrally cast ASME BPE clamp connections and short ASME BPE length. It can be supplied with an internal and external surface finish of Ra ≤ 0.8 up to Ra ≤ 0.4.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28919

Honoured at the SIPEC trade fair: The GEMÜ 650TL diaphragm valve  (Company news)

Last year at the SIPEC trade fair in Orléans (France), the Innovation Prize went to GEMÜ for the development of its innovative GEMÜ 650TL "safety valve".

If the flow velocity in a loop reduces, it can fall below a critical value. When the GEMÜ 650TL diaphragm valve is used, selected tapping points can automatically be closed by the central process monitoring system in order to reduce the tapping quantity and thus increase the flow velocity. It is now also possible to query the position of the handwheel. In this case, the position "handwheel closed" is detected by an optionally available proximity switch and communicated to the plant control system. Previously, this was only possible for the piston position of the actuator. Due to this improvement, a visual check of the plant in person is no longer absolutely essential. The position "handwheel closed" can be checked simply and conveniently from the control room.
This optimisation adds to the reputation of the GEMÜ 650TL as a "safety valve", because the additional functionality further contributes to protecting plant operators and the conducted medium. Even if the valve closes due to the prevailing parameters (shutoff of control air) and the operator inadvertently forgets to close the hand wheel, uncontrolled escape of the medium can still be prevented.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28788

50 years of experience in valve design   (Company news)

The company Gebrüder Müller Apparatebau GmbH & Co. KG – GEMÜ for short – based in Ingelfingen, Baden-Württemberg, is celebrating its 50th anniversary this year. Founded by Fritz Müller in his parents' garage, the manufacturer of valves, measurement and control systems can now look back on an impressive history.
When the first process valve made of plastic was delivered by GEMÜ in 1964, nobody suspected that this one-man operation would develop into a company with 1400 employees and 24 subsidiaries all over the world within the next 50 years. With Gert Müller as Managing Director, the second generation answered the call of the family company in 2011.
Thanks to its consistent innovation and an emphasis on quality and customer focus, GEMÜ has developed into the world market leader in the area of valve designs for all main and auxiliary processes of the pharmaceutical and biotechnology industries.
One core area of expertise of GEMÜ is, for example, its multi-port valve blocks milled from block material. Originally made of stainless steel, these allow a plant to be designed much more compactly and, at the same time, more flexibly. These requirements are also becoming increasingly important in plastic plant engineering. The company's decades of experience in stainless steel block construction and manufacturing produces synergies, which are now also applied to the manufacturing of plastic multi-port valve blocks.
This expertise makes GEMÜ the technological leader in the field of complex multi-port valve blocks made of plastic. With its broad product range, GEMÜ can offer solutions for a wide range of customer groups. This product variety, combined with an active customer focus, makes GEMÜ the right partner for a very wide range of applications in the field of valves, measurement and control systems.
The company also offers state-of-the-art products for the increasing levels of electrification and automation now used in plant engineering. GEMÜ already offers its customers a relevant range of components and systems. For example, electric actuators for globe and control valves, butterfly valves and diaphragm valves. Depending on the version, these can be equipped with the corresponding positioners or process controllers as standard or connected to commonly used communication interfaces.
The company and its employees look forward to developing new innovations and mastering new challenges in the future together with customers and suppliers.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28695

Additional product variants of GEMÜ 650 diaphragm valve  (Company news)

Picture: GEMÜ 650

The Ingelfingen-based valve specialist has added two additional nominal sizes to its product range of the GEMÜ 650 series, which is designed for use in sterile applications.

The actuator design of this piston actuated 2/2-way diaphragm valve has proven popular in the foodstuff and pharmaceutical industries for many years. With the addition of the DN 80 and DN 100 nominal sizes, the product range has now been extended further. This ensures product continuity from DN 4 to DN 100.

These additional products cater to the requirements of customers who were looking for a compact diaphragm valve in the corresponding nominal sizes. A basic prerequisite in this context was the suitability of the valve for use in a hygienic environment.
The GEMÜ 650 valve has an easy-to-clean stainless steel actuator and is equipped with an optical position indicator as standard.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28318

Sterilisable and autoclave-capable: GEMÜ sampling bottle system  (Company news)

The mobile bottle systems from GEMÜ are suitable for contamination-free sampling and transport of samples to the laboratory or quality assurance station. The entire sampling unit is easy to sterilise and autoclave-capable.
The objective of GEMÜ products is increased safety for the sampling of liquids from sterile and hygienic processes. Therefore, the valve block systems have an EHEDG-certified diaphragm sealing system. The valve body itself is made of stainless steel, and glass or, again, stainless steel is used for the bottle material. The bottles required can either be provided by the customer or be supplied with the product as an overall package. FDA-compliant PTFE, EPDM and FEP are offered for the sealing material; other materials are available on request.
As standard, the valve bodies enable the following five functions: Use of pneumatic and/or manual operators, a sampling connection and CIP/SIP inlet, bottle filling, a CIP/SIP outlet, and a vent hole.
Due to the flexibility in the design of GEMÜ block systems, these functions can be offered with different geometries. Other functions can also be integrated on request.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28215

Integrated automation - Simple, fast and reliable  (Company news)

Picture: GEMÜ 651 with fully integrated automation module

The GEMÜ 651 aseptic valve is a successful symbiosis of the GEMÜ 650 diaphragm valve used in sterile systems and proven instrumentation.
It has a fully integrated automation module in three different designs. The combi switchbox combines optical position indication by LEDs with electrical position indicator and integrated pilot valves. The version with an integrated positioner also has what has become known as a SpeedAP function to enable fast commissioning. The automation module works using a microprocessor-controlled intelligent position sensor paired with an analogue travel sensor system. In addition, its teach-in function simplifies commissioning.

Furthermore, the GEMÜ 651 valve has integrated travel and system control. The automation module has AS-interface capability. Due to its compact design, the valve is very well suited for use in the smallest spaces, for example as components of multi-port valve blocks.
The valve design was developed taking into account the guidelines and recommendations of FDA, EHEDG and GMP. Thanks to integrated air ports, for example, pneumatic connectors between the actuator and pilot valve are not needed.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #28132

Precise dosing with multi-port valve blocks made of fluoroplastics  (Company news)

Process reliability under stringent requirements
Precise dosing of ultra pure water with heavy-duty switching cycles and a long service life – this was the customer request received by GEMÜ. The task was solved by using a multi-port valve block from the iComLine® series, which is made of ultra pure PVDF and features innovative seat diaphragm technology with PTFE. This combination allows very heavy-duty switching cycles and temperature resistance up to 150 °C. Features which were not possible with the pinch valves used previously.

Precise control and integration of components in the smallest of spaces
Multi-port valve blocks combine multiple valve seats in one unit. This means that plants can now be built much more compactly because the pipe connections, fittings and even various sensor components can be integrated together. Through customized calculations and configuration of the regulating cones, it is possible to implement Open/Close functions along with very specific control characteristics. In this case, three millilitres of ultra pure water are output precisely within just 60 milliseconds.

Many years of experience with multi-port valve blocks
Thanks to a wealth of experience acquired over 20 years in the manufacture of stainless steel multi-port valve blocks and in handling critical media in the semiconductor industry, GEMÜ has now been able to successfully transfer this expertise to the field of high-performance thermoplastics.
With its modular system, GEMÜ can provide individually adapted customer solutions to meet specific requirements and supplies everything from a single source.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #26575

Compact, quickly assembled, cost-effective: Extendable plastic blocks  (Company news)

Picture: GEMÜ multi-port valve block made of plastics

With GEMÜ multi-port valve blocks made of durable plastics, valve interfaces in piping systems can be implemented in an extremely compact and customized manner.
For plant designers, this solution offers numerous advantages, such as the space savings achieved through the combination of valve functions in a single plastic block, the shorter installation time due to the significant reduction in the number of individual components, the increased plant reliability due to the reduction in bonded or welded points and reduced operating costs.
In a customized valve block design, GEMÜ can integrate a very wide variety of functions such as blending, diverting, channelling, draining or supplying a very wide variety of liquids (including chemicals). Dosing functions can also be implemented with multi-port valve blocks.
Numerous manufacturers offer process plants in different versions and/or want to keep open the opportunity for subsequent extension of the plant.
The "extendable multi-port valve blocks" were developed based on these applications and in partnership with customers. The concept provides OEMs with a customized modular system which can be adapted to individual requirements.
The new concept can cover a majority of possible variants with just a few basic versions. Within seconds and without additional piping, adhesive bonding or welding, these basic blocks can be connected to produce an extended multi-port valve block. Subsequent modifications to the process plant which are requested by the plant operator can also be implemented quickly and easily. This offers genuine added value to suppliers and operators alike.
The product can be used cost effectively in plants of the chemical industry and environmental chemistry sector, in surface finishing, coating and electroplating plants, municipal and industrial water treatment plants and other areas of use.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #26406

Food safety-compliant globe valves  (Company news)

Picture: GEMÜ 555 pneumatically operated

GEMÜ offers several globe valves suitable for use in plants of the food and beverage industries, including the GEMÜ 505/555 pure steam valve.
All of the wetted components are traceable and comply with SML (Specific Migration Limit) and QM values (maximum permissible residual quantity in material), which ensures the valve's compliance with EU Framework Regulation 1935/2004 and makes it suitable for use in food-related applications.
Originally developed for a well-known customer from the pharmaceutical industry, the valve design was modified/upgraded for pure steam applications in the food industry in the second half of 2012.
The pneumatic (GEMÜ 555) and hand-operated (GEMÜ 505) angle seat globe valves are based on the GMP directives (German guidelines on good manufacturing practice) and meet the highest quality standards: all wetted parts are made of high-quality stainless steel and the seal materials satisfy the requirements of the FDA and the EU Framework Regulation.
All valves are manufactured in specific batches and combined in one production run in order to ensure complete traceability of all wetted components such as valve bodies, retaining nuts, seats,

bellows and other parts. Alongside the certificate of compliance with the order 2.1, test report 2.2 and inspection certificates 3.1 and 3.2 as per DIN EN 10204, a declaration of conformity with Regulation (EC) No. 1935/2004 can thus also be issued for the GEMÜ 505/555.
Other globe valves which can also be manufactured in accordance with EU Framework Regulation 1935/2004 include the GEMÜ 507, 514, 537, 550 and 554 angle seat globe valves.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #26320

More compact and reasonable than its predecessor: GEMÜ R647   (Company news)

The GEMÜ 647 2/2-way plastic valve has been revised and is now available as R647 with optimized body geometry.
The valve is especially suited - like its predecessor - to use in dyeing plants, in automatic animal feeding installations or for use in the paper industry. In addition, GEMÜ R647 will be used wherever there is no need for a closing spring, or where the installation conditions require small components. One benefit of the new type is the similarly high Kv value with a smaller actuator size. The R647 is therefore more compact and reasonably priced than its predecessor. The valve can also be supplied in an intermediate size, the new diaphragm size 20. This new feature also means that additional space and cost savings are possible in plastic piping systems.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #26263

GEMÜ system solutions made of stainless steel - Customised, integrated multi-port valve systems  (Company news)

Picture: GEMÜ stainless steel multi-port valve block P600M

As a valve specialist GEMÜ reduces the space requirements for process plant and, at the same time, increase the performance capability of system components. Multi-port valve blocks made of stainless steel combine various functions for the control of liquids and gases in the smallest possible space.

GEMÜ has been manufacturing innovative, sterile multi-port valve blocks made of stainless steel for 20 years for the pharmaceutical and biotechnology industry. The complexity and compliance with the end customer requirements for modern plant engineering would not be possible without this continuously developing multi-port valve block technology. GEMÜ has not only met the challenge of designing creative solutions; is also mastered the production of these complex components using state of the art CNC machining centres.

For customised block designs we integrate a wide range of functions: blending, splitting, diverting, draining, feeding or cleaning. Double shut offs, cross connections, safety and control functions as well as the integration of sensors, filters and check valves are also possible. GEMÜ can even integrate tanks, process

containers and plant housing walls as well as mounting points. Application oriented tasks are assigned to these individual functions, such as distributing media, sampling, sterile steam or connecting cleaning media. Alternatively, they can be used to implement process engineering solutions, such as a minimum flow rate or a block and bleed safety function.

Block solutions provide a greatly simplified alternative to complex pipework with valves, fittings, sensors etc. The block assembly already houses all the required pipework, fittings and connections. In addition to valves, GEMÜ offers a comprehensive range of accessories including controllers, flow meters, stroke limiters and customized sensors which can be integrated into the multi-port valve block.

- Multi-functional unit
- Integration of various sensors and instrumentation components
- Increased plant reliability, among other things by using fewer pipes and connections
- More space and resource saving than conventional solutions
- Competent consultation services from our process engineers
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #25575

Compact and intelligent  (Company news)

Picture: Combi switchbox GEMÜ 4545, diaphragm valve GEMÜ R690

The new GEMÜ 4242 combi switchbox is suitable for secure and fast applications in most industrial sectors and process plants.
It is small, compact and light, and is ideal for pneumatically operated linear actuators. With its integrated 3/2-way pilot valve made of anodized aluminium or stainless steel, the new combi switchbox 4242 from GEMÜ, the Ingelfingen-based specialist for valves, measurement and control systems, is especially designed for smaller and medium nominal sizes. It is particularly well suited for secure and fast applications with a stroke of 2 to 30 mm.
The design is compact and saves material, and in comparison with competitors' products, it is much smaller. This has a favourable effect on pricing and provides protection for the environment at the same time.

Green technology brings benefits for the customer
Green engineering is part of the GEMÜ range. The future-oriented company philosophy immediately brings customers twofold economic advantages: by means of competitive pricing in purchasing, but also in assembly and the range of functions. The pneumatic and electrical connections of the combi switchbox save

space and enable easy access as they are positioned in one direction. This means that the combi switchbox can be fitted quickly and easily without any great need for cabling, and there are no problems during servicing either. Furthermore, mounting and commissioning is made simpler by a speed-AP function. A manual override enables fast diaphragm change. This all saves time and money, and lowers the planning efforts.

Large range of functions
Moreover, GEMÜ 4242 integrates functions that render other accessories superfluous. The combi switchbox has a microprocessor-controlled, intelligent position sensor and an analogue, integrated travel sensor system. The combi switchbox provides extended diagnostics, and reports various programming, sensor and pneumatic faults using high visibility. The end positions are programmed on site via the reed contact, using a solenoid on the top of the housing, but without a PLC connection. The position of the reed contact in the housing is clearly marked. The housing therefore need not be opened. Mechanical openings in the housing for buttons and switches are therefore not required.

System solutions for complex procedures and processes
The robust housing has been solidly built to meet ATEX requirements, and it has a transparent cover. Travel sensors, switching valves and status LEDs have been integrated into the housing. The connection is made using a standard M12 connector. In addition to discrete switching and feedback, there are field bus connections for the AS interface, DeviceNet and also the option to connect using the IO link communication interface. The combi switchbox can be used in most industrial sectors and process plants for local activation of valves. GEMÜ provides system solutions for complex procedures and processes. In such situations, the 4242 combi switchbox sets the standards, thanks to its intelligent position sensor with integrated travel sensor system and the high visibility position indicator.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #25172

Butterfly valves GEMÜ 410, 417 and 423 also available up to nominal size 100  (Company news)

The lightweight and compact butterfly valves by GEMÜ can be installed quickly and easily.
In the field of plant engineering key factors for the selection of equipment and components are weight, size and installation time. Functional range and performance are in turn very important criteria for process engineering. The GEMÜ 410 butterfly valve and its versions 417 and 423 meets stringent requirements in both respects. They are compact and lightweight, and can be installed quickly and easily. Furthermore, thanks to their wide range of functions, they are suitable for numerous applications in very diverse fields.

Space saving and easy to install
The butterfly valves in nominal sizes 15 – 50 - and up to 100 beginning in January 2012 - can be installed quickly and easily. They are easier to install than wafer and LUG type butterfly valves. In addition, the valve bodies of the butterfly valves come as standard with male threads. Therefore, no additional flanges, bolts, nuts and washers are required for installation in pipe systems. This simplifies installation and saves time and materials. Another advantage is compact installation length in all nominal sizes. This saves space and allows for cost-effective plant design.

Available with three operators
Depending on requirements, butterfly valves have pneumatic, manual or motorized operators custom-built for each specific application. The GEMÜ 410 butterfly valve is equipped with a low-maintenance, corrosion-resistant plastic pneumatic quarter turn actuator. Control functions "normally closed", "normally open" and "double acting" are available. The butterfly valve is optionally available with a stroke limiter and position indicator. GEMÜ 417 has an ergonomically designed manual operator with integrated locking device and intermediate stop in nominal sizes to DN 50. In DN 50 and larger the butterfly valve is fitted with a lockable hand lever which protects the butterfly valve against accidental operation. GEMÜ 423 has a low-maintenance motorized actuator with a powerful DC motor. The actuator features an optical position indicator and manual override as standard. The end positions can be adjusted electrically using microswitches.

Applications in nearly every industrial sector
All wetted parts of the soft-sealing butterfly valves are manufactured from high-grade plastic. They are corrosion resistant and are particularly well-suited for use in corrosive environments. To a certain extent, media may also contain solid matter. The potential applications of butterfly valves are highly diverse, from control and regulation of inert to corrosive media at medium temperatures between 10 and 60 degrees Celsius and pressures up to 6 bar.
The applications are wide-ranging. GEMÜ butterfly valves operate just as reliably in water treatment plants, swimming pool processes and irrigation systems as in the electroplating and chemical processing industries.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #24421

More compact, smaller, better value - A milestone in industrial plastic piping systems  (Company news)

In plant engineering there is a great demand for application specific components with a wide range of functions which save space and weight and are easy to install. Compact, lightweight plastic diaphragm valves offer cost-effective alternatives to conventional valve designs.

The new R690 and R677 2/2-way plastic diaphragm valves from GEMÜ, the Ingelfingen specialist for valves, measurement and control systems offer all the advantages for economical use in these applications: They are small and compact, lightweight and designed so that combinations of several nominal sizes can be installed on the same mounting height plane. For installation, the valves are supplied in all standard connections for the different international standards.
Despite their compact size and smaller dimensions, the redesigned flow-optimized valve bodies provide the same high flow rates as the previous models, and in some cases even higher flow rates, as well as being competitively priced. Depending on the valve design, they work reliably at temperatures from minus 20°C to plus 80°C and at pressures of up to 10 bar.

The product line comprises nominal sizes from DN 15 to 100. In the course of redesigning its products, GEMÜ has also succeeded in significantly reducing the control air consumption of the type R690 pneumatic actuated version.
In addition to the standard optical position indicators, features include options such as electrical position indicators, positioners or process controllers, manual overrides, pilot valves, seal adjusters and stroke limiters. Depending on requirements and application, GEMÜ valve bodies are available in a variety of plastics (PVC-U, PP, ABS etc.) and with a range of seal materials (EPDM, PTFE, FPM, NBR).

Suitable for use in almost all industrial sectors
These compact plastic diaphragm valves are suitable for economical use in chemical process plant, for plant solutions in surface finishing, coating and electroplating, municipal and industrial water treatment, as well as solutions for power stations and exhaust air cleaning systems. Also for sensitive procedures and technologies such as reverse osmosis, neutralization, in swimming pools with microfilter systems or for chemical processes with aggressive and corrosive media, the GEMÜ components also provide economical alternatives to conventional valve designs such as for applications in environmental systems, the electronics industry or also for production processes such as the manufacture of fertilizers or detergents.

For Compact Plastic Valves solutions, GEMÜ offers everything from a single source
The R690 and R677 plastic diaphragm valves are part of the GEMÜ "Compact Plastic Valves" series (CPV). When it comes to the CPV range, GEMÜ can supply everything from a single source – from single valves and system components, right through to a full range of valve accessories.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #21593

Compact, lightweight and multifunctional   (Company news)

Compact valve solutions save space and installation time and offer considerable cost advantage. Multifunctional plastic multi-port valve blocks meet all fluidic and gaseous application requirements in the smallest of spaces.

With its small, lightweight but nevertheless highly efficient plastic diaphragm valve solutions, GEMÜ, the German specialist for valves, measurement and control systems based in Ingelfingen offers a portfolio for compact, safe and cost-efficient plant design meeting today's plant engineering requirements.

Advantages over conventional valve designs
Multi-port valve blocks P600 in particular have a major advantage over conventional valve design solutions. They are compact, space-saving and, due to their individual design, are able to perform a range of quite different functions in the most confined spaces, such as mixing, dividing, diverting, draining, feeding and cleaning – all in one block! Safety and control functions as well as the integration of sensors, filters and non-return valves are also possible.

Basis for system components
Intelligently designed, multi-port valve blocks form the basis for compact plant components with high functionality. Complex piping systems are highly simplified by block valve solutions. They largely eliminate the need for additional adapters and moulded parts. Quick and simple installation is ensured by the integration of standard connection types.

Wide range of applications
GEMÜ compact, lightweight multi-port valves are suitable for a wide range of applications in various industrial sectors. The range of cost effective applications extends from installations for chemical processes in the chemicals and environmental chemistry and plant solutions in surface finishing, coating and electroplating, as well as municipal and industrial water treatment, all the way through to solutions for power stations. Even when it comes to sensitive processes and systems, such as reverse osmosis plants, neutralisation, swimming pools with microfiltration systems and chemical processes involving aggressive and corrosive media, multi-port valves are a cost-effective alternative to conventional valve designs. But, of course, they can also be used where inert media and processes are controlled.

Highly resistant
The plastic multi-port valve blocks ensure high flow rates and, depending on valve specification, operate reliably at temperatures ranging from -20°C to +80°C and pressures of up to 10 bar. They are highly resistant, even to aggressive and corrosive media. In addition to valves, GEMÜ offers a comprehensive range of accessories including controllers, flowmeters, stroke limiters and customised sensors all possible to integrate into the multi-port valve block.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #17141

World innovation offers flexible plant design  (Company news)

The newly developed, material-optimized GEMÜ FlexPort series of globe valves is designed to save space and to reduce customer costs by up to 20 percent.
Design engineers and users are always interested in developing process plant requiring as little space as possible. Therefore they select lightweight and compact solutions saving installation time and reducing costs whilst ensuring high functionality.

Compact and flexible plant design unites various valve configurations
GEMÜ has developed a compact material-optimized globe valve range for easy and space saving installation which provides a 20 percent cost saving to the customer. The flexible plant design unites various valve configurations. “GEMÜ FlexPort Valves® are the first stainless steel industrial globe valves of spherical design which are available in different types such as 90° angle valves, 2/2-way valves or 135° angle valves whilst retaining their basic design“, says Peter Meyer, head of the Automation Department at GEMÜ.
By saving both materials and installation costs, these new globe valves are much more cost-effective, lightweight and rugged than conventional valves of the same type. Another decisive advantage: they have high flow rates. The valves are particular suitable for plants for the generation, treatment and distribution of steam and process water, as well as heating and cooling systems.

“Green technology“
With this new valve range GEMÜ follows in the tradition of GEMÜ founder Fritz Müller: the reduction of material by intelligent design. “With this world innovation we are showing once again our responsibility for the environment“, declares Peter Meyer, as less material means less energy consumption and conservation of natural resources. (GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #14433

External Environmental Audit Successfully Passed  (Company news)

GEMÜ GmbH & Co. KG of Ingelfingen-Criesbach, Germany is certified according to the international environmental standard DIN EN ISO 14001 and registered according to the requirements of the Europe-wide EMASIII Regulation. The company's compliance with the aforementioned standards was confirmed by an external, independent environmental auditor as part of an evaluation of the environmental performance of the company. The environmental auditor, an accredited member of the German Accreditation Society for Environmental Auditors, reserved particular praise for the well-documented environmental management system of the company and for the company's clearly understandable environmental declaration.
Active environmental protection has been a part of the corporate philosophy at GEMÜ for many years. "As an industrial company, we bear a special responsibility to protect our environment. That is why sustainable manufacturing and production are an integral part of business at GEMÜ", explains qualified engineer Jürgen Kerl, environmental officer at the multinational specialist in valves, measurement and control systems. It is a declared goal of the company to continuously improve environmental performance in the long-term.
- Environmental management system defines responsibilities and procedures
The company has integrated all of its environmentally-relevant information in a detailed environmental management system (EMS), which is both clearly set out and easily understandable. This system defines, for example, who is responsible for what action, how staff should behave in certain situations and which procedures should be used.
The EMS is part of the integrated management system. This also incorporates the quality management system. "In this way, we are able to ensure that our commitment to the environment reaches the same high quality standards that customers expect from our products and services", explains Jürgen Kerl. The EMS takes a long-term view and is updated on an ongoing basis. During the course of annual audits, checks are made to determine whether the specifications are still appropriate or need to be adapted to fit the current situation.
- Commitment above and beyond legal requirements
GEMÜ has decided to implement the voluntary environmental management system known as the European Eco-Management and Audit Scheme, EMAS III. The Eco-Management and Audit Scheme is a tool developed by the European Union for the purpose of sustainably improving the environmental performance of businesses and of allowing businesses to present their performance in this area to the public. EMAS is more than a simple management system to DIN EN ISO 14001. The system is actually performance orientated. It requires that companies improve their environmental performance above and beyond the requirements in the applicable environmental laws. Furthermore, EMAS also requires that employees be involved in decisions on environmentally-relevant topics. The aim of this is to encourage employees to identify with the continuous improvement of the company's environmental performance. Jürgen Kerl interprets the requirements of EMAS as follows: "Environmental management should be lived by the staff and should not take the form of unread manuals gathering dust in a filing cabinet."
- Environmental declaration formulates environmental objectives
With the decision to implement EMAS came the obligation for GEMÜ to produce an environmental declaration. This clearly and understandably presents the company's environmentally relevant activities and environmental data. It clearly describes the company's consumption of power, water, fuel, chemicals and other substances and materials as well as how the company deals with waste and wastewater, complies with legal requirements, deals with emergencies such as fire or flood and how the company communicates with the public. Furthermore, the company itself is also presented, along with its products and services, environmental policy and the environmental management system. "The crucial factor is that the environmental declaration formulates very specific environmental objectives for the future, which the company then has to measure itself by", says the GEMÜ environmental officer.
- Direct and indirect environmental aspects taken into account
The company undertook a lot of preparatory work for the environmental declaration. "Although we had a great deal of data and facts in our possession, these had to be meaningfully structured in accordance with the requirements of EMAS and set against a timescale", explains Jürgen Kerl. A distinction also had to be made between direct and indirect environmental aspects. The direct aspects refer to the immediate environmental effects of the company's activities, products and services. These range from the use of land, consumption of raw materials, power and water through to the production of waste as well as the generation of wastewater and emissions during the transport of goods. Indirect environmental aspects affect the environment in ways that the company can only influence to a limited extent. These include transport, packaging, the production and extraction of (raw) materials, the environmental performance of suppliers and service providers such as cleaning firms, advertising agencies or caterers as well as the environmental behaviour of customers.
- Sustainable improvement of environmental situation
Following on from validation by the auditors, GEMÜ has now been entered in an official register and received a unique European registration number. The registration certificate was issued by the Chamber of Commerce and Industry of Heilbronn-Franken. All of the relevant environmental authorities are involved in the registration process. This ensures that the company has not infringed upon any environmental regulations. Registration entitles the company to use the EMAS logo. This is reserved exclusively for participants in EMAS. The quality of the EMAS regulation is monitored by the EU member states.
For GEMÜ, validation in accordance with EMAS III has a range of benefits: operating costs are reduced noticeably, productivity improves and environmental effects are minimized. "With this scheme, we are helping to sustainably improve the environmental situation and quality of life", says Jürgen Kerl. The EMAS logo indicates that GEMÜ is environmentally aware. This also improves the company's image and increases the company's attractiveness as an employer.
The environmental declaration, the registration certificate and the environmental certificate are available for download from (GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #11463

A new butterfly valve for almost any application   (Company news)

The GEMÜ range of butterfly valves is now one version richer. The new GEMÜ D480 series is the most versatile butterfly valve we have ever had in our range.

The new GEMÜ D480 wafer pattern butterfly valve is available in nominal sizes DN 25 – 1400. A wafer type version, an end-flange version with threaded holes and a double flange version are available body configurations. The installation length is in accordance with EN 558-1 basic series 20. Connection standards to DIN (PN10/16), ANSI 150, JIS and BS can be supplied. Standard pressure ratings are 10 bar and 16 bar. A soft-sealing concentric version of the D480 butterfly valve is suitable for pressures up to 25bar. The butterfly valve complies with the safety requirements of Annex I of the European Pressure Equipment Directive 97/23/EC for fluids of group 1 and 2.
A wide range of materials and coatings is available for the body and butterfly disc extending from SG iron to superduplex steels. Coating materials are Resicoat®, Rilsan® or Halar®. The temperature limits for the working medium range from -40°C up to max. 200°C, depending on the material selected.
- Seats and approvals
The seats are available in 17 different versions from EPDM to Viton® (FPM). These include an FDA compliant EPDM and a version for drinking water. The drinking water version fulfils the requirements of ACS, KTW, WRAS and W270. Exchangeable seats or seats vulcanised to the body can be supplied. Vulcanised seats are particularly suitable for applications involving high pressures, mechanical stress and vacuum.
- Operators
Type series D480 features a top flange in accordance with EN ISO 5211 for mounting various operators. Hand lever, gearbox, pneumatic actuators and motorized actuators in an open/close version or control version are available. The pneumatic GEMÜ D481 butterfly valve is manufactured with the tried-and-tested GEMÜ ADA/ASR or DR/SC actuators in single or double acting versions. The pneumatic actuators can be equipped with an extensive range of accessories such as pilot valves, electrical position indicators, combi switchboxes and positioners. Accordingly, the new valves can be integrated into any automated system without difficulty.
- Areas of application for GEMÜ D480
The great variety of body/disc materials and coatings as well as the wide range of seats provides for an extensive range of possible applications. From standard discs in SG iron to super duplex discs or Halar coated discs for corrosive media, no wishes are left unfulfilled. The butterfly valve is used in the following industries for example:
 Chemical industry
 Mining and metal extraction
 Steel works
 Water and wastewater treatment
 Sea water desalination
 Pharmaceutical and semiconductor industry
 General industrial processes
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #11133

GEMÜ roadshow: It's on the road again!  (Company news)

The new GEMÜ roadshow is finished and operating for our customers.

The new GEMÜ roadshow is ready for action. After many months of planning and assembly, it is once again on the road direct to our customers' premises and facilities. Equipped with an overview of our entire product range and four functional display walls covering the topic of automation, it allows all of our customers' employees to find out about their own specific topic of interest very quickly and efficiently. This includes purchasing staff and engineers from the planning department as well as employees from the production, service or maintenance departments. The information provided ranges from details about the design of valves and the presentation of new products right through to tips and tricks on installing spare parts. We can also prepare information on topics of specific interest upon request.
The exhibition room of the roadshow is housed in a containerised truck body. 12 m² of exhibition space provide concentrated expertise in a small area. Equipped with air conditioning, heating, a coffee machine and refrigerator, the roadshow ensures that its visitors enjoy a high level of comfort regardless of the weather and temperature. The large entrance area, which can also be closed with a glass door, lets a lot of light inside and gives the room a much more spacious feeling. A generously sized set of stairs provides for easy access and rounds off the interior nicely to the outside. The wall opposite the entrance is equipped with four 36“ screens which show images, documentation and videos. The screens can be operated individually or as a combined widescreen presentation area. In addition, the exhibition container can easily be set down for extended deployments. A second container is currently being completed and this will allow us to operate at two sites at once in the future. An integrated external power connection also allows the roadshow to be operated independently via the towing vehicle.
During the first 12- 24 months, the roadshow will primarily be on the road throughout Germany and Europe. The towing vehicle features a fully equipped cab which leaves no wish unfulfilled for long delivery trips and deployments in remote areas. This is why our driver, Thomas Medelsky, who has been with the company since October 2009, can always arrive at your premises well rested and relaxed. Since joining he has undergone a comprehensive training programme and has taken care of the many different issues which arise with this type of vehicle. One of the courses he has completed is the Train-the-Trainer course on exchanging shutoff diaphragms on diaphragm valves. This means he is officially authorised to instruct people in this area and he is the first point of contact for the service and maintenance staff of our customers. He is always accompanied at our customers' premises by staff from the sales department or specialist departments. (GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #11001

New butterfly valve for corrosive media  (Company news)

The demand for highly corrosion resistant butterfly valves continues to grow and GEMÜ have introduced a new range to complement their other lined butterfly valves.
The new GEMÜ 490 butterfly valve is fitted with a TFM liner and PFA-encapsulated stainless steel disc as standard. The design of the butterfly valve, and especially the liner, the shaft seal and backing has been optimised to reduce actuation torques, while providing increased tightness at the same time. The new butterfly valve therefore uses smaller actuators, this being reflected in reduced purchase and operating costs. The technical improvements to the sealing concept increase the service life and reduce the probability of failure.
- Why TFM instead of PTFE
TFM is a further development of the classic PolyTetraFluorEthylene (PTFE) material. The tremendous properties of PTFE have been improved even more in this second generation.
- Properties of TFM
 TFM is highly resistant to chemicals and can therefore be used almost universally.
 The gas permeability is significantly less than with conventional PTFE (see diagram 2). This means that less medium diffuses through a TFM seal with the same material thickness as PTFE. 3 mm thick TFM material corresponds to around 5-6 mm thick PTFE. In line with the requirements of the chemical industry, the material thickness of the liner and coating of the butterfly disc is at least 3 mm for the GEMÜ 490.
 The cold flow properties with TFM are significantly lower than with PTFE. A significantly lower plastic deformation of the material therefore results at the same mechanical stress (see diagram 1). This means that the liners of butterfly valves will remain dimensionally stable for longer.
 The surface quality of TFM is considerably improved in comparison to PTFE (see diagram 3). The smoother surface reduces the mechanical friction and hence wear by the butterfly disc. The liner remains durable for longer and less ground particles find their way into the medium. At the same time, the liner for the GEMÜ 490 is shaped spherically inside and outside, thereby reducing the torque and extending the service life.
- The backing
The backing behind the actual liner consists of two parts. Both backing parts are fully inserted in the space between the body and the TFM liner and centred with the shaft bushing. The backings are sufficiently strong in design, so that their flexibility is better transferred to the TFM liner. At the same time, the tolerances of the backings have been further reduced. The greater fitting accuracy leads to improved mechanical properties. The backing is also designed in such a way that it resists considerably greater deformations with permanent elasticity. The side play between the backing and liner is so great that no negative stresses can be transferred when compressing the liner between the flanges. These design measures also result in a further reduction in the torque and hence a longer service life of the liner.
- The spindle seal
The spindle seal has also been optimised further. The transition from shaft disc to liner is positive and edge-free in design. Every shaft bushing has dual protection against overload, so that the butterfly valve fulfils the leakage in the Technical Guidelines on Air Quality Control (TA Luft) VDI 2440 paragraph
- Explosion protection
GEMÜ 490 is available in ATEX compliant versions for explosion endangered areas of group II, zones 0, 1, 2 or 20, 21 and 22.
- General technical data
GEMÜ 490 is available in sizes DN 40 – 1000. A wafer design and a lugged version for end-of-line duty are the body design options. The body material is available in GGG 40.3, stainless steel 316 L and cast steel as standard. Special materials are available on request both for wafer and lugged bodies.
The maximum operating pressure is 10 bar at DN 40 – 600 and 6 bar at DN 650 – 1000. The temperature limits are -20°C to max. 200°C, in relation to the pressure-temperature curve in the valve technical data.
- Operators
GEMÜ 490 is available with manual (GEMÜ 497), pneumatic (GEMÜ 491) and motorized (GEMÜ 498) operators. The pneumatic actuators can be fitted with pilot valves, electrical position indicators and positioners. In this way, the new butterfly valve can be integrated in any automated system.
Smaller operators can be used due to the reduced torque which results in lower purchase and operating costs.
- Areas of application for GEMÜ 490
The TFM liner of the butterfly valve provides a very high resistance to chemicals. The butterfly disc is made from stainless steel or PFA-encapsulated stainless steel. The butterfly valve is used in all applications where corrosive liquids and gases are to be controlled. Typical examples are:
 Chemical industry
 Mining and metal extraction
 Steel works
 Treatment of highly corrosive waste waters
 Treatment and distribution of ultra-pure water in pharmaceutical installations and in the semiconductor industry
Thanks to its construction, it can also be used in explosion endangered areas. The butterfly valve has also been approved for applications up to 200°C in accordance with the TA Luft standard. (GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #9892

Automation inside - New pneumatic aseptic valves with integrated automation technology  (Company news)

Photo: On the right GEMÜ 651, on the left the old version GEMÜ 650 with mounted pilot valve and electrical position indicator

Automation inside is the guiding principle behind the development of the GEMÜ 651 stainless steel diaphragm valve for the pharmaceutical industry. The new valve is a compact unit comprising stainless steel diaphragm valve, pneumatic piston actuator, valve actuation, position indicator and field bus connection (e.g. AS interface). Integral automation, compact design, easier and faster installation / commissioning as well as the design recommendations of FDA and EHEDG in compliance with GMP are only some of the basic requirements this new product satisfies.
In the past users needed three products to establish a functional unit. This comprised of a valve, solenoid and switchbox, which had to be assembled using valve-specific mounting kits. GEMÜ now provides a complete solution with the type 651. This requires very little mechanical installation and is ready for operation within just a few minutes thanks to the innovative SpeedAP function. An analogue travel sensor continuously detects the valve position. The data is evaluated via a microprocessor. This ensures simple, fast and automated commissioning of the valve, e.g. after changing the diaphragm.
The GEMÜ 651 diaphragm valve is available as an "OPEN/CLOSE" valve or with integrated positioner as a control valve in the nominal sizes DN 4 – 25. The maximum permissible operating pressure is 10 bar with EPDM diaphragms and 6 bar with PTFE diaphragms. The maximum permissible operating temperature during sterilisation is 150°C. The valve is CIP/SIP capable. Its compact design makes it ideally suitable for use where space is at a premium, e.g. within valve batteries and as a component of valve blocks in multi-port design. The pneumatic actuator section of the housing is made from stainless steel, while the automation module located above is made from PP (polypropylene). The protection class is IP 65, electrical connection is established via a standard M12 circular connector. All versions such as 2/2-way valves, T valves, tank valves and multi-port valves are available as a valve body.
The essential advantages for the customer are:
- Lower price: As the design has resulted in a reduction of manufacturing costs, we have been able to lower the prices for the new valve between 10 - 16% compared to the conventional version, comprising the GEMÜ 650 valve and the GEMÜ 4222 combi switchbox.
- Reduced costs for installation: Integration of the automation functions in the actuator does away with time and cost intensive installation, tubing and piping work.
- Reduced operating costs thanks to rapid, automated commissioning, e.g. after changing the diaphragm.
- GMP-compatible design through significantly "smoothed" outer contours.
- Minimisation of potential faults such as leakages, connection and mounting errors as a result of integration.
- Simplified logistics and materials management at the customer, there is now only one article number for the complete valve.
- Detailed monitoring and diagnostic facilities, interference immunity due to AS interface.
- Simple connection to other field bus systems via AS interface.
(GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Newsgrafik #9372

New! Seal adjuster for aseptic diaphragm valve  (Company news)

The GEMÜ 602 stainless steel diaphragm valve with stainless steel handwheel is now available with a manually operated seal adjuster.

Excessive closing forces lead to over-compression of the diaphragm and hence reduced service life. In the case of manual valves, it is generally the small nominal sizes and diaphragm sizes that are particularly affected. Depending on the force applied by the user, the diaphragm is compressed sometimes more and sometimes less during the closing process. To prevent over-compression, the seal adjuster is set in such way that the valve closes optimally and the diaphragm is not compressed more than necessary at the same time. If the user then turns the handwheel, it will encounter a limit stop, thereby protecting the diaphragm.
Seal adjusters can also be used effectively for setting a minimum flow.
GEMÜ 602 is available in diaphragm size 8 (MG8) and nominal sizes DN 4 – 15. The Kv values of the small valves are between 0.5 – 2.2 m³/h, depending on the nominal size and connection. The stainless steel valve bodies are from the proven GEMÜ modular system and are therefore fully compatible with existing equipment. Connections available are butt weld spigots, clamps and threaded connections to DIN, ASME BPE, BS and JIS. Valves with an EPDM diaphragm are suitable for use up to 10 bar and with PTFE diaphragm up to 6 bar operating pressure. The stainless steel handwheel and the bonnet are designed to be easily cleanable and the valves are CIP/SIP capable and autoclavable. (GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG)

Base de données mise à jour pour la dernière fois: 17.02.2020 15:51 © 2004-2020, Birkner GmbH & Co. KG