The car's on-board air conditioner provides car owners with a better driving experience in the hot summer, and the expansion valve has an indelible contribution to the normal operation of the car's air conditioner, so let's get to know the following car air conditioner expansion valve today, and how it is installed in What position?
First of all, the expansion valve of automobile air conditioner is also called throttle valve. It is a kind of throttling device that can adjust the flow of refrigerant. It is one of the important refrigeration components of air conditioning system.

The expansion valve of the automobile air conditioner is generally installed at the inlet of the evaporator, which is the watershed between the high pressure and the low pressure of the automobile air conditioner refrigeration system.
The expansion valve of the automobile air conditioner has three functions:
1. Because the inlet size of the expansion valve is relatively small, it can reduce the pressure of the coolant, which has the effect of throttling and reducing pressure.
2. The expansion valve of the automobile air conditioner can automatically adjust the flow of refrigerant, thereby stabilizing the temperature in the car and improving the comfort of the vehicle.
3. It can prevent the liquid refrigerant from hitting the compressor and ensure the superheat of the evaporator outlet.





