Diaphragm Valve Air Operated "R690 Type"
GEMÜ manufactured (GEMU) air-operated plastic diaphragm valve (diaphragm valve)
This is a diaphragm valve that is compact and lightweight yet has a high flow capacity. It boasts high durability due to the use of high-quality plastic. You can choose from a wide range of body and diaphragm materials to suit your fluid and application. **Features of GEMÜ (GEMU) Air-Operated Plastic Diaphragm Valve:** - The linear flow path structure results in low pressure loss and achieves a high Cv value, providing high flow capacity despite its small and lightweight design. - Made from high-quality plastic, ensuring high durability. - A wide selection of body and diaphragm materials is available to match various fluids and applications. - Comes standard with a position indicator for visual confirmation of the valve's open and closed status.
basic information
【Nominal Diameter】15A to 100A 【Applicable Fluids】Air, water, and other non-hazardous fluids 【Fluid Temperature】-20 to 80℃ 【Operating Pressure】Max 1.0MPa 【Ambient Temperature】-10 to 50℃ 【Body Material】PVC-U, ABS, PP-H 【Diaphragm Material】EPDM, FPM, PTFE, NBR 【Connections】Union (JIS/DIN), Flange (JIS/DIN/ANSI), Butt welding, etc.
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Model number/Brand name
GEMÜ R690
Applications/Examples of results
[Purpose] ● Desalination of water for steam boilers using an ion exchange system.
Detailed information
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For more suitable control of the system, combining it with an electro-pneumatic positioner and process controller enables more appropriate control for the process. *The photo shows the GEMÜ R690 model equipped with the GEMÜ 1436 type process controller.
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Body design that achieves high flow rate Compared to conventional products (right), a linear body design has been realized (left)! With the improved flow capacity, it is also possible to reduce the size from conventional valves.
Line up（1）
| Model number | overview |
|---|---|
| GEMÜ R677 | Manual handle type |
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GEMÜ provides value through its cutting-edge manufacturing capabilities and new technology development. We have strong connections with the pharmaceutical industry worldwide and have been engaged in the development and improvement of valves. As a result, we offer a wide range of products, including "sanitary diaphragm valves," which require sterility, and "valves specialized for semiconductor manufacturing," which demand high control precision. We have established six manufacturing sites around the world and provide services in over 50 countries. As a leading company in the sanitary valve market, our products are adopted in many plants. We actively engage in research and development, with over 5% of our annual sales allocated to development investments. Thanks to this effort, we have been recognized by the Institute for Management and Economic Research (IMWF) in Germany as a technology company promoting digitalization.