PRODUCTS FDH Series Piston Type Check Valve
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FDH Series Piston Type Check Valve

FDH series piston type check valves are widely used in VRVs and commercial air conditioners, heat pump hot water heaters and commercial refrigeration. The piston type check valves are preferred at exhaust air tube because of better high temperature resistance performance, They are used to control the unidirectional flow of refrigerant so as to prevent backflow.

FEATURES

● This valve can ensure the only correct flow direction to prevent back flow

● Dampingspring design without installation angles limits

● FDHY reinforced spring-type valve for multiple compressors in parallel

OPERATION CONDITIONS

● Applicable Refrigerants: R410A, R32, R134a, R404A, R507, R290, R407C and R22, etc. (For R290, please confirm before placing orders.)

● Maximum Working Pressure: 4.5MPa

● Medium Temperature: -50°C~ +140°C

● Ambient Temperature: -30°C~ +55°C

● Relative Humidity: below 95%

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Catalogue Certificates Installation instructions Design Input Sheet