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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)

Diaphragm Valve, Metal


Diaphragm Valve, Metal


Nominal sizes ¾”-4”, with stainless steel bonnet, includes travel stop open and option for limit switches or lock-out, (similar to 653 except with stainless handwheel)  ½”– 4” connections

Standard Features  
  • Stainless steel bonnet with sanitary internals
  • Stainless steel handwheel,
  • EHEDG certified sealing concept
  • Autoclavable
  • Seal adjuster (travel stop closed)
  • Stroke limiter (travel stop open)
  • Visual position indicator
  • Optional enclosed bonnet fasteners
  • Second generation PTFE or EPDM diaphragm
  • Body material forged 316L stainless steel
  • Integral buttweld tube extensions or triclamp
Available Options

Special connections 
-   Welded extensions, (tube or pipe) 
-   ISO, DIN and other international standards

Cluster valve assemblies, Zero Static T-valves, Duplex, Multiported, Tank Bottom/Side Sampling, and custom mltiported block valves upon request.

Special purpose valves 
-  Local or remote lockout valves 
-  Open / closed electrical position indication 
-  Bevel gear operated valves (see type 643) 
AL-6XN®, Hastelloy® Titanium®, and other alloys available upon request.

Typical Applications
  • Pharmaceutical manufacturing
  • Bioprocessing
  • Cosmetic
  • Brewery Service
  • Food and Beverage
  • Semiconductor
  • High Purity Chemicals



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