WTV series temperature responsive expansion valves(liquid injection) are usually installed suction side of compressor in refrigeration system to protect the refrigeration system from too high discharge gas or oil temperature.

The capacities of WTVA, WTVB series temperature responsive expansion valves(liquid injection) are large and usually used for large refrigeration system.

WTVP series can work under no influence by suction pressure change. The liquid injection temperature need to be set in factory, and no adjusted in using.