Danfoss check valves, NRV/NRVH

NRV and NRVH can be used in liquid, suction and hot gas lines in refrigeration and air conditioning systems with fluorinated refrigerants.

NRV, check valves, flare, straight version

Refrigerants: R22, R134a, R404A, R507, R407A, R407C, R407F, R410A, R32. max. working pressure = 46 bar. max. test pressure = 60 bar. Medium temperature: -50 - +140°C.

NRV, check valves, copper solder, corner version

Max. permissible operating pressure = 46 bar. Maximum test pressure = 60 bar. Media temperature: -50 - +140°C

 

NRVH, check valves, copper solder, straight version, reinforced spring

NRVH is supplied with a spring for ¦¤p = 0.3 bar. Designed for single pressure lines in compressors and assemblies. Max. Operating pressure = 46 bar. Maximum test pressure = 60 bar. Media temperature: -50 - +140°C

 

NRV, check valves, copper solder, straight version

Max. permissible operating pressure = 46 bar. Maximum test pressure = 60 bar. Media temperature: -50 - +140°C

 

NRV, non-return valve for high pressure CO2

NRV 10s H check valves for R744 (CO2) can be used as internal relief valves when installed in parallel with GBC ball check valves or service check valves. The components must be serviced at the inlet and outlet. The NRV 10s H can also be used in the hot gas defrost lines. Refrigerant: R744 (CO2). Oil: POE, PAG. Temperature range: -50 - +140 °C. Permitted Working pressure (PS): 90 bar. Max. test pressure: 130 bar. Approvals: CE and UL.

 

NRVH, check valves, copper solder, corner version, reinforced spring

NRVH is supplied with a spring for ¦¤p = 0.3 bar. Designed for single pressure lines in compressors and assemblies. Max. Operating pressure = 46 bar. Maximum test pressure = 60 bar. Media temperature: -50 - +140°C

Know-How Article