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GEMÜ is a German company founded since 1964, and a leading manufacturer of valves, measurement and control systems.

Today, Gemu is the world market leader of valves for sterile applications in the pharmaceutical and biotechnology industries.

Gemu offers the following range of products:
  • Aseptic Diaphragm Valves
  • Plastic Diaphragm Valves
  • Metal Diaphragm Valves
  • Butterfly Valves
  • Globe Valves
  • Control Valves
  • Solenoid Valves
  • Pilot Valves
  • Ball Valves
  • Check Valves
  • High Purity Products  (Valves, Flow, Pressure, Tubings & Fittings)
  • Positioners & Controllers
  • Electrical Position Indicators
  • Field Bus Systems
  • Actuators
  • Flowmeters (Rotameters)

Industrial Diaphragm Valve, Metal


Industrial Diaphragm Valve, Metal



The GEMU 653 manually operated 2/2-way metal diaphragm valve has a stainless steel bonnet and is available in two versions - GEMU 653 has a handwheel in high temperature and chemically resistant plasticl. The handwheel is non-rising and has a standard optical position indicator. Two bonnet versions are available: for 2/2-way bodies and for T-bodies or multi-port bodies. 

  • Suitable for inert, corrosive, liquid and gaseous media
  • CIP/SIP cleaning and sterilizing capabilities
  • Autoclave capability
  • Insensitive to particulate media
  • Surface finishes down to 0.25 μm, electropolished
  • Designed according to GMP (Good Manufacturing Practice)
  • The handwheel design allows minimal heat sink thus reducing the danger of burns injuries
  • The service life of the diaphragm is increased to a maximum by the patented optional seal adjuster (US-patent 6,691,737 B2)
  • Optional flow direction, will seal in either flow direction up to full operating pressure
  • Optional mounting position
  • Option
    • Lockable handwheel
    • Mounting for proximity switches for position feedback



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