If the opening degree of the thermal expansion valve is too small, it will cause insufficient liquid supply, so that there is not enough Freon to evaporate in the evaporator, and the refrigerant has evaporated on the way to the evaporator tube. There is no liquid refrigerant in the evaporator tube after this, and only the steam is overheated.
Before installing the thermal expansion valve, check whether it is intact, especially the temperature sensing mechanism.
1.1. 1) Determine the pressure at both ends of the expansion valve; 2) Determine the valve type; 3) Select the valve model and specifications
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
Solenoid Valve is an industrial equipment controlled by electromagnetism. It is a basic component of automation used to control fluids.
