Danfoss Check Valves for Ammonia, Fluorinated Refrigerants

Check valve type NRVA can be used in liquid, suction and hot gas lines in refrigeration and air conditioning plant with ammonia.
NRVA can also be used in refrigerating systems with fluorinated refrigerants
When the NRVA is used in liquid lines where cold, thick oil or impurities may be present, it is recommended that the standard spring be replaced by a special spring.
Features
Ensures correct direction of flow

Prevents back-condensation
From warm evaporator to cold evaporator
Fitted with damping piston
That makes the valves suitable for installation
In lines where pulsation can occur, e. G. In the discharge line from the compressor
Materials
Housing: GGG-40.3
Gaskets: Non asbestos