Сheck valves Danfoss NRV designed for use in liquid and suction lines as well as hot gas lines of refrigeration and air conditioning systems. They are intended for work with HCFC, HFC and HC flammable refrigerants. They are used to control the unidirectional flow of refrigerant so as to prevent backflow. Built-in damping piston that makes the valves suitable for installation in lines where pulsation can occur, e.g. in the discharge line from the compressor. Special models are available for CO2 units with maximum operating pressure 90 bar.
Сheck valves Danfoss NRV are available in straight and angle versions, it solve the resonance problem with partial thermal load on the cooling system.
Soldered versions of NRV are compliant with ATEX hazard zone 2.
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