GEMU 687 Diaphragm Valve

Code: GEMU 687
  • Various Sizes
  • Pneumatic Operation
  • Function Choice

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The GEMU 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.

Features

  • Suitable for inert and corrosive liquid and gaseous media
  • Chemical resistance of actuator
  • Stainless steel body with CIP/SIP cleaning and sterilising capabilities
  • Insensitive to particulate media
  • Valve body and diaphragm available in various materials and designs
  • Various connections available
  • Surface finishes down to 0.25 µm, electropolished
  • Versions according to ATEX on request
  • Optical position indicator is standard for control function 1

Advantages

  • 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
  • Installation for an optimised draining is possible
  • Hermetic separation between medium and actuator
  • CIP/SIP capable
  • Extensive diagnostic facilities

Optional accessories:

  • Stroke limiter
  • Optical position indicator control function 2 + 3
  • Manual override (GEMÜ 1002, GEMÜ 1004)
  • Pilot valve with manual override (GEMÜ 0322 – 0326)
  • Electrical position indicators

Technical details

  • Connection: Clamp; Flange; Spigot; Threaded socket; Threaded spigot
  • Actuator: Pneumatic
  • Seal material
  • Body material: 1.4408, PFA lined; 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; EN-GJS-400-18-LT, hard rubber lined
  • Conformities: ; EC regulation 10/2011; EC regulation 1935/2004; FDA; Oxygen; TA Luft (German Clean Air Act); USP
  • Max. operating pressure: 10 bar
  • Max. media temperature: 100 ° C
  • Min. media temperature: -10 ° C
  • Nominal sizes: DN 10 (3/8”); DN 12; DN 15 (1/2”); DN 20 (3/4”); DN 25 (1”); DN 32 (1 1/4”); DN 40 (1 1/2”); DN 50 (2”); DN 65 (2 1/2”); DN 80 (3”); DN 100 (4”)
  • Pilot valve
  • Control valve
  • Sterilisation temperature: max. 150 °C

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Title Size
687 Datasheet 737 KB

Additional information

Weight0.09 kg