Used KVP regulator chiller

Mounted on suction line after evaporator. Its function is to maintain a constant evaporation pressure and therefore a constant temperature on the surface of the evaporator. The regulation is made by strangling the suction line, adapting it the amount of refrigerant gas to the load of the evaporator. Protect against too low evaporation pressure (eg as protection against freezing in a water cooler). The regulator closes when the pressure in the evaporator decreases below the set value