Fluid handling, regulation and control

Fluid handling, regulation and control

Fluid handling, regulation and control

GEMÜ 650 aseptic diaphragm valve


The GEMÜ 650 2/2-way aseptic diaphragm valve has a stainless steel piston actuator and is pneumatically operated. The valve is designed for use in a sterile environment. All metallic actuator components are made of stainless steel. The compression springs of diaphragm sizes 80 and 100 are made of epoxy coated spring steel. Normally closed (NC), Normally open (NO) and Double acting (DA) control functions are available. The valve has an internal optical position indicator as standard.

The GEMÜ 650 2/2-way aseptic diaphragm valves are suitable for the control of inert and corrosive liquids and gaseous fluids. It is available in a ATEX-compatible version on request.


  • Connection: Clamp; Spigot; Threaded socket; Threaded spigot
  • Actuator: Pneumatic
  • ATEX
  • Explosion protection
  • Body material: 1.4408, investment casting; 1.4435, forged body; 1.4435, investment casting
  • Max. operating pressure: 10 bar
  • Max. media temperature: 100 ° C
  • Min. media temperature: -10 ° C
  • Nominal sizes
  • Control valve


  • Suitable for inert and corrosive liquid and gaseous media
  • Valve body and diaphragm available in various materials and designs
  • Compact design (ideal when space is at a premium)
  • Various connections available
  • CIP/SIP cleaning and sterilizing capabilities
  • Autoclave capability, dependent on version
  • Surface finishes down to 0.25 µm, electropolished
  • Versions according to ATEX on request


  • Hermetic separation between medium and actuator
  • Optional flow direction
  • Installation for an optimized draining is possible
  • Control air connectors positioned in-line with piping (option: 90° offset)
  • Expelled air from spring chamber can optionally be piped to other locations
  • Extensive range of accessories, easily retrofitted
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