2021 new ultra this truck air conditionrt

Our newly released integrated parking air conditioner has been widely supported in China, Europe, America, Japan, Africa and other regions.This product has the following advantages : High quality and reasonable price. New parking air conditioner complete with quality accessories to extend service life2.One piece design, convenient installation and space saving. The design of the air […]


The expansion valve is an element that is responsible for controlling the passage of refrigerant through compression or expansion, depending on the pressure required by the air conditioning system. This pressure is what cools the refrigerant as it circulates through the evaporator coils.


Introduction Refrigerant, commonly known as refrigerant, is a working fluid used in refrigeration and air conditioning systems to transfer heat energy and produce a freezing effect. According to the working mode, it can be divided into primary refrigerant and secondary refrigerant. According to the classification of material properties, it can be divided into natural refrigerant […]