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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: hongsen
  • Model Number: CV check valve
  • Type: refrigeration equiment
  • Application: checl valve
  • Certification: ce QS ISO9001
  • hongsen: manifatory
  • refrigerant: HCFC or HFC
  • model: CV check valve
  • material: brass
  • types: direct/right flow
  • applicable medium temperature: -40~+120
  • Max.test pressure: 4.5Mpa
  • Max.operating pressure: 3.0Mpa
  • spec.: SAE/ODF
  • size: 1/4~1-3/8

Packaging & Delivery

Packaging Details hongsen package/general package
Delivery Time 7-30days

check Valve


· Model CV one-way valve is used on the piping of liquid, suction gas or hot air on the freezing, cold storage and air conditioner units.
· The valve seat and seals of Model CV one-way valve have excellent sealing performance.
· For Model CV one-way valve, both threaded and welded connections are available.



· Ensure one flow direction and avoid reveral.
· With the built-in damper and could be mounted on the piping with pressure pulsation.
· Prevent refrigerant back flow from high temperature evaporator to low temperature evaporator.
· Applicable to the refrigeration unit in parallel with compressor.
· Both direct flow type and right-angle type are available.

Technical Paramengers:



Applicable RefrigerantHCFC,HFC
Applicable Medium Temperature-40°C~+120°C
Maximum Working Pressure3.0MPa
Maximum Test Pressure4.5MPa
Minimum Opening Pressure DifferentialP=0.03MPa





Kv Value
CV-6Direct Flow1/4 SAE1/4 ODF4.80.56
CV-103/8 SAE3/8 ODF81.43
CV-121/2 SAE1/2 ODF102.05
CV-165/8 SAE5/8 ODF133.60
CV-193/4 SAE3/4 ODF165.50
CVR-22Right Angle--7/8 ODF198.50
CVR-28--1-1/8 ODF2519.0
CVR-35--1-3/8 ODF3229.0

Kv value:When the pressure differential is 100 KPa, the flowrate at m3/h of water in density 1t/m3 flows through the solenoid valve.





1,copper tube;2,valve body;3,valve core;4,recovery spring;5,connection(valve cover);


Overall Dimension:




ModelOverall DimensionWeight (g)
ABhexagon SThread MLL1L2øDødEFThreadWelded

Note:(1) Nut is excluded from above mentioned weight.
(2) Nut weight:1/4-18g, 3/8-30g, 1/2-33g, 5/8-50g and 3/4-93g.








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