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Check Valves

The Check Valve permits the air flow in one direction but checks the flow in the opposite direction, thus keeping the output pressure at a constant level. The Check Valve can keep the service pressure at-750mmHg (vacuum) and permits piping under low pressure.

  • Back Flow Prevention, keeps pressure in outlet side
  • Ideal for vacuum retention or low-pressure application
  • Body of in-line type is made of aluminum
  • Low-cost and Lightweight Resin Type available


Check Valve Diaphragm Cracking Point: 1.45 psi (0.01MPa)
Fluid Admitted: Air, Vacuum
Service Pressure Range at 20ºC: 0~150 psi (0~1MPa)
Service Temperature Range: 32~140ºF (0~60ºC)
Working Vacuum: -29.5in.Hg (-100kPa)


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