Fluid handling, regulation and control

Fluid handling, regulation and control

Fluid handling, regulation and control

GEMÜ 673 2/2-way aseptic diaphragm valve


The GEMÜ 673 2/2-way diaphragm valve has a temperature resistant plastic handwheel and is manually operated. Bonnet and internals are made all of stainless steel. A seal adjuster to increase service life of the diaphragm and an integral optical position indicator are included as standard.


  • Connection: Clamp; Flange; Spigot; Threaded socket; Threaded spigot
  • Actuator: Manual
  • ATEX
  • Explosion protection
  • Body material: 1.4408, investment casting; 1.4435, forged body; 1.4435, investment casting; EN-GJS-400-18-LT (GGG 40.3), PFA lined; EN-GJS-400-18-LT (GGG 40.3), PP lined
  • Max. operating pressure: 10 bar
  • Max. media temperature: 100 ° C
  • Min. media temperature: -10 ° C
  • Nominal sizes


  • Suitable for inert and corrosive liquid and gaseous media
  • Chemical resistance of bonnet
  • CIP/SIP cleaning and sterilizing capabilities
  • Autoclave capability
  • Insensitive to particulate media
  • Valve body and diaphragm available in various materials and designs
  • Compact design (ideal when space is at a premium)
  • Stepless minimum flow regulation due to seal adjuster


  • Hermetic separation between medium and actuator
  • Optional flow direction
  • Installation for an optimized draining is possible
  • Long service life of the diaphragm due to patented seal adjuster (US-Pat. 5 377 956)
  • Valve body also available in multi-port designs (M-block and T-body) or as tank bottom valve body

Datasheet GEMÜ 601/602/612/673 aseptic diaphragm valves

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