Features & Benefits
  • Port size: DN 15...50, 1/2...2 (ISO G/NPT)
  • Large size drain or shut off valve; 
  • High flow rate; 
  • Suitable for contaminated process fluids; 
  • Damped closing (valve closes against flow direction); 
  • Suitable for lower case vacuum up to max. 90%; 
  • Steel operating for higher operating pressure
  • Wide temperature range (-10...180degC); 
  • Shock and vibration tested to EN 61373, Category 1, class A and B; 

Medium: neutral gases and liquids

Pilot fluid: neutral gases max. +80degC

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, 1 1/2, 2, 2 1/2, 3

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

Operating pressure: 

70mm actuator:

  • G & NPT 1/2: 0...16bar
  • G & NPT 3/4, 1: 0...10bar
  • G & NPT 1 1/4: 0...7bar
  • G & NPT 1 1/2: 0...4.5bar
  • G & NPT 2: 0...3bar

125mm actuator:

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

Fluid temperature: -10...+180degC 

Ambient temperature: -10...+60degC

Storage temperature: min. -40degC

Air supply must be dry enough to avoid ice formation at temperatures below +2degC

Materials: 

Process fluid characteristics:

  • Body: dezincification brass (CW617N)
  • Seat seal: PTFE
  • Internal parts: brass, stainless steel
  • spindle sealing: PTFE/FKM, self adjustable

Pilot fluid characteristics:

  • Body: stainless steel, Aluminum
  • Bottoim: WEMA-Kor, coated
  • seals: NBR
  • Internal parts: coated steel