Check valves Danfoss NRVH ensure the correct flow direction and prevent back condensation from a warm part of the system to the cold evaporator. They can be used in liquid, suction and hot gas lines in refrigeration and air conditioning plants. Valves are intended for work with HCFC, HFC and natural refrigerants such as R290 (propane) and R600a (isobutane). Danfoss NRVH check valve is with stronger spring and it’s recommended to use for compressors in parallel (i.e. power packs) where higher level of pulsation and vibration are expected. Special models are available for CO₂ units with maximum operating pressure 90 bar. Danfoss NRVH valves are certified: C UL US LISTED, EAC.
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