Expansion valve

Expansion valves are components capable of taking refrigerant from its condensation pressure to its evaporation pressure. They are proportional control devices that act to regulate the flow or refrigerant as the thermal load conditions in the evaporator change.
Castel expansion valves are available with a wide range of potentials, working pressures/temperatures, and connections.
Expansion valves can be used for refrigeration and air condition applications, for fluorinated refrigerants (HCFC, HFC, and HFO) and natural refrigerants (HC and CO2).
This family of expansion valves includes thermostatic and solenoid valves (PWM valves). The latter can be used in combination with a variety of coil types with different outputs and for the most common voltages.