Optimized for use in liquid, suction and hot gas lines

The Danfoss NRV and NRVH check valves are optimized for use in liquid, suction and hot gas lines in air conditioning applications to ensure correct flow direction. The NRVH valve is especially designed for systems where compressors are connected in parallel.

Features and benefits

The valves can be used for fluorinated refrigerants as well as CO2

Straightway and angleway versions are available

Supplied with flare and solder connections

Available with oversize connections for easy installation

NRVH is supplied with spring to Δp = 0.3 bar (4 psi)

Access to the product store

Find all the information you need about these products.


Type Name Language Valid for Updated Download File type
Data sheet NRV / NRVH check valves English Multiple 27 Jun, 2019 1.9 MB .pdf
Data sheet NRV check valve CO2 English Multiple 21 May, 2019 536.8 KB .pdf



Coolselector®2: We did complex — you do awesome

Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.