The expansion valve is clogged, the refrigeration effect is poor, there is frost behind the valve, and the compressor does not operate normally. The expansion valve is an important part in the refrigeration system, generally installed between the liquid storage tank and the evaporator. The expansion valve makes the medium-temperature and high-pressure liquid refrigerant pass through its throttling to become low-temperature and low-pressure wet steam, and the refrigerant absorbs heat in the evaporator to achieve the cooling effect. The expansion valve consists of three parts: the valve body, the temperature sensor and the balance tube.
Features of the expansion valve:
1. The expansion valve adopts a double-flow balanced orifice with advanced structure.
2. Expansion valve Due to the adoption of dual-channel thermal expansion valve, the refrigeration system saves the number of expansion valves, check valves and solenoid valves.
3. The two-way balanced orifice of the expansion valve makes the static superheat change with the condensing pressure or the pressure drop through the valve port.
4. The superheat degree of the expansion valve is stable, which makes the system run stably. 5. The expansion valve is suitable for various work needs such as refrigeration and air conditioning.