Check Valve, Flow Actuated, NW40 Size, Auto-Soft

Technical Specs

  • Type
    Check Valve
  • Port Size
    NW40
  • O-Ring Material
    Viton
  • Required Clearance
    0.7 in., 0.3 in.
  • Spring Material
    Elgiloy
  • Open Area
    Open Position: 0.67 in2 (4.4 cm2), Closed Position: 0.02 in2 (0.13 cm2)
  • Adjustable Area
    0.04 in2 (0.26 cm2)
  • Closing Flow
    6 CFM, 2.8 liters/sec
  • Ring, Tabs, Stop & Axel Material
    304 stainless steel
  • Vane Material
    Inconel 625
  • Bearing Material
    Teflon
  • Closing Time
    10 ms
  • Opening Pressure
    2 Torr
  • Maximum Operating Temperature
    100°C
  • Pumpdown Time
    Typical increase in pumpdown time is 3 times. Times were measured using a pump capacity of 27 CFM for NW40, 70 CFM for NW50 and a volume of 100 liters.

Need help?

Contact an Applications Specialist by sending us an email