Check Valve Piston Type Series YCV

ref. Check Valve Piston Type

Piston type check valves are designed for installation in commercial refrigerating systems and in residential or industrial air conditioning plants. They are used to control the unidirectional flow of refrigerant so as to prevent backflow.

Air conditioning Commercial Refrigeration Heat Pump

General characteristics

ModelPart numberTypeConnectionsKvMin. Open. Differ. Press.DimensionsPED Category Price
(VAT included)


  • This valve can ensure the only correct flow direction
  • Equipped with damping spring to freely install the valve at positions with pressure pulse
  • Available with two types: straightway valve and L-shape valve, easy to connect
  • Special version of check valves equipped with reinforced spring, applicable for exhaust pipes in shunt connection with compressors (YCVSH series)
  • Low pressure drop during operation

General specifications

  • Applicable for all common HCFC and HFC refrigerant such as: R22, R134a, R404a, R407C, R410A, R507A ...
  • Minimum/Maximum refrigerant allowed temperature (TS): -50°C to 140°C
  • Maximum working pressure (PS): 4.6MPa (46 bar)
  • Installation position:
    - Flow direction corresponds to the arrow
    - Straight-way type: preferably installed with vertical axis and flow upwards, sloping axis up to horizontal is tolerable
    - L-shape type: flow direction from bottom to top
  • Declaration according to PED

Check Valve Piston Type Series YCV . Specifications