1.What does an a/c expansion valve do?

High-performance a/c expansion valves can control the flow and pressure of the refrigerant, thereby adjusting the cooling effect of the air conditioning system. And it can avoid evaporator coil freezing and other failures of the air conditioning system, ensure the normal operation of the air conditioning system and improve the comfort and safety of construction machinery.

2.How does the air conditioning expansion valve work?

The A/C expansion valve receives high-pressure liquid refrigerant from the condenser and reduces its pressure and temperature. Then, it meters the flow of refrigerant into the evaporator based on cooling demand. The expansion valve regulates refrigerant flow by sensing temperature and pressure conditions in the evaporator.

3.What is the function of the air conditioning expansion valve?

The air-conditioning expansion valve has two main functions in the air-conditioning system. One is to have a certain throttling effect on the air-conditioning. The high-temperature and high-pressure liquid air-conditioning refrigerant will become a low-temperature and low-pressure mist hydraulic refrigerant after passing through the expansion valve.

The other function is to control the flow of air-conditioning refrigerant. The liquid refrigerant entering the evaporator will become gaseous through evaporation, and the expansion valve controls the flow of air-conditioning refrigerant to ensure that the outlet of the evaporator is completely gaseous refrigerant.

4.What are the symptoms of a malfunctioning A/C expansion valve OR how do i know if my ac expansion valve is bad?

Some common signs of A/C expansion valve failure happened in construction machinery include insufficient cooling, inconsistent cooling, frost or ice on the evaporator, and high or low-pressure readings on the A/C system gauge.

5.Does the air conditioner expansion valve need to be replaced regularly?

Honestly, I can’t give you an answer, because the A/C expansion valve usually doesn’t have a predetermined lifespan, but it is recommended to check the A/C system regularly and replace it if there are signs of failure.

6. What is the cost of replacing an expansion valve in an air conditioner?

The cost for an A/C expansion valve replacement is typically pretty straightforward. It’s wise to upgrade your a/c expansion valve at FridayParts, we sell cab and a/c parts of well-known brands such as Case, John Deere, Komatsu, etc., and you can discover many more brands here. No matter excavator, tractor, loader, etc, you can find matching parts. And, we provide you with satisfactory warranty service. Tf you can’t find it, feel free to contact us.


For more cooling system parts explained read our advice on Cooling System Parts Explained:A/C Condenser.

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