Danfoss
Danfoss NRV and NRVH check valves are optimized for use in liquid, suction and hot gas lines in air conditioning applications to ensure the correct direction of flow.
The NRVH valve is specially designed for systems where compressors are connected in parallel.
These can be used for fluorinated refrigerants and CO2. Straight pitch and angled versions are available. It is supplied with flared and welded connections. They are also available with oversized connections for easy installation. NRVH is spring-loaded at Δp = 0.3 bar (4 psi).
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