Check Valve Description

ASC custom designs and engineers pneumatic check valves. ASC has flight-proven dual flapper and split flapper designs in all types of pneumatic aerospace applications with flow temperatures from ambient up to 1200°F.

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Check Valve Specs


  • Two or four flappers
  • Aluminum, Stainless Steel or Inconel
  • 1” to 7” Line Sizes Available
  • Pressures up to 250 PSIG
  • Temperatures up to 1200°F
  • Cracking Pressure as low as 1” H2O

Check Valve Applications

Check valve applications include engine high pressure bleed air check to prevent low pressure backflow, bleed air check during single engine or APU operation, environmental control system backflow prevention, blower pressure check against ram air port, cabin negative pressure relief, and many others.  ASC check valves are used across a broad range of military vehicles, helicopters, and aircraft.

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