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Check Valve RoHS Compliant

R PBT M Ni-plated brass or aluminum


Fluid medium Air
Operating pressure range -0.1~0.9MPa
Cracking pressure※ Max. 0.01MPa
Operating temp. range 0~60ºC (No freezing)
Minimum Checking differential pressure 0.02MPa (Resin type :0.04MPa)

* Cracking pressure is the initial pressure on the secondary side when the pressure is applied from free flow side.

Applicable size

■Tube diameter

MM size (mm) ø4, ø6, ø8, ø10, ø12
Inch size ø5/32, ø1/4, ø5/16, ø3/8, ø1/2

■Thread size

Metric thread M5x0.8, M6x1
Taper pipe thread R1/8, R1/4, R3/8, R1/2
Unified thread 10-32UNF
National pipe thread taper NPT1/8, NPT1/4, NPT3/8, NPT1/2
  • Details
  • Degital catalog
  • CAD data


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 be used for vacuum retention and pipings under low pressure.
  • Resin type is low cost and lightweight.

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