The thermal expansion valve is an important regulating component in the refrigeration system. Its main function is to adjust the refrigerant flow entering the evaporator to adapt to changes in the evaporator load, thereby maintaining efficient operation of the system. According to the structure and pressure sensing position, thermal expansion valves can be divided into two types: internally balanced type and externally balanced type.
1. Direct-acting solenoid valve: Principle: When the power is turned on, the solenoid coil generates electromagnetic force to lift the closing member from the valve seat
The difference between normally open solenoid valve and normally closed solenoid valve
Solenoid Valve is an industrial equipment controlled by electromagnetism. It is a basic component of automation used to control fluids.
Fault phenomenon one: the solenoid valve does not work after electrification
Today we talk about the refrigeration system of three control valves, they are: evaporative pressure control valve, condensing pressure control valve, suction pressure control valve. They can optimize the performance of the refrigeration system, in the refrigeration system these valves are of great significance.
