The expansion valve is the throttling core of the air conditioning system. Affected by long-term refrigerant impact, pipeline pressure fluctuation, engine cabin high temperature and vibration fatigue, the internal valve core is prone to jamming, scaling and failure of flow regulation.
A faulty expansion valve will cause abnormal air outlet temperature, insufficient cooling effect, intermittent cold air, frost on the pipeline, abnormal noise of the air conditioner compressor, and even overload damage to the compressor. Most buyers will purchase this expansion valve together with AC pipelines, sealing rings, filter driers in a single bulk order to reduce purchasing and logistics costs, bringing stable profit margins and low inventory pressure for distributors all year round.