Auto Air Conditioners Thermal Expansion Valve

Our QRFWH expansion valve does not only follows the American, Japanese and international car standards, but also has two kinds of inner encapsulation structures: One is of international O-ring encapsulation structure, while the other one isof Teflon encapsulation structure, originally invented by our company, with thepatent no. of ZL01260199.3 and ZL 01226951.4.Features:1) High sensibility of regulation2) Stable regulation3) Small internal leakage4) Reliable temperature sensing, without deviation5) Without block or jump6) Long usage life7) Customers can choose from the above mentioned two structures