687 25B88405M1F/N 1516

Diaphragm valve, pneumatic

Item number: 88778501
Description
Type 687 Diaphragm valve, pneumatically operated, plastic actuator, stainless steel distance piece
DN 25 DN 25
Body configuration B Tank bottom valve body
Connection type 88 Clamps ASME BPE Face to face EN 558, series 7
Valve body material 40 1.4435 (F316L), forged body
Diaphragm material 5M PTFE/EPDM two-piece
Control function 1 Normally closed (NC)
Actuator version F/N Operator size F/N
Execution type 1516 Ra ≤ 0.25 μm (10 μin.) for media wetted surfaces *), to DIN 11866 HE5, electropolished internal / external, *) for pipe inside-Ø < 6 mm, in the spigot Ra ≤ 0.38 µm
Surface 1516 Ra ≤ 0.25 μm (10 μin.) for media wetted surfaces *), to DIN 11866 HE5, electropolished internal / external, *) for pipe inside-Ø < 6 mm, in the spigot Ra ≤ 0.38 µm
Diaphragm size 25 Diaphragm size 25

The GEMÜ 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.

  • Hermetic separation between medium and actuator
  • CIP/SIP capable
  • Wide range of adaptation options for add-on components and accessories
  • Suitable for particulate and abrasive media
  • Stainless steel body suitable for corrosive environments
  • Wide range of adaptation options for add-on components and accessories