Features & Benefits
  • Port size DN 15...25, 1/2...1 (ISO G/NPT)
  • Optical visual indicator as standard; 
  • Damped closing (valve close against flow direction); 
  • Suitable for contaminated process fluid; 
  • Suitable for vacuum up to max. 90%; 
  • Reversed flow direction optional; 
  • High flow rate.

Medium: aggressive gases and liquids

Pilot fluid: neutral gases max. +60degC

Switching functions: normally closed

Operation: pressure operated by external fluid

Mounting position: optional

Flow direction: determined

Port size: G & NPT 1/2,  3/4, 1

Pilot connection: G1/4 res. 1/4 NPT

Operating pressure: 

  • G & NPT 1/2: 0...16bar
  • G & NPT 3/4: 0...10bar
  • G & NPT 1: 0...5bar

Pilot pressure: 3.5...10bar

Fluid temperature: -10...+180degC 

Ambient temperature: -10...+60degC

Materials: 

Process fluid characteristics:

Body: stainless steel

Seat seal: PTFE

Internal parts: stainless steel

spindle sealing: PTFE/FKM, self adjustable

Pilot fluid characteristics:

Body: Polyamid 66 wih glass fibre 30%

Seat seals: NBR

Internal parts: brass, stainless steel