Pneumatically operated diaphragm valve GEMÜ 687

The diaphragm valve has a plastic membrane actuator and is pn. operated.


The GEMÜ 687 2/2-way diaphragm valve has a low maintenance plastic membrane actuator and is pneumatically operated. The valve has a metal distance piece. Normally Closed (NC), Normally Open (NO) and Double Acting (DA) control functions are available. —The modular actuator system permits a variety of options to be used such as tank bottom valves, T valves, sampling valves, multi-port valves and tandem welded configurations —Optional flow direction and installation position

  • Diaphragm valve
  • low maintenance
  • plastic membrane actuator

Product features

Body material 1.4408,PFA lined; 1.4435,forged body
Body material 1.4408, investment casting
Body material 1.4435, investment casting
Body material EN-GJS-400-18-LT, PFA lined
Body configuration Tank valve body; 2/2-way body; T body
Actuator Pneumatic
Operating Pressure 0 to 10 bar
DN 10 to 100
Media temperature -10 to 100 °C

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