Expansion valve

摘要

A low cost block-type expansion valve 6 contains a hollow cylindrical strainer 20 in a space provided for introducing high-pressure liquid refrigerant. The strainer 20 surrounds a valve element 17. Refrigerant introduced into a refrigerant pipe-connecting hole 12 has to flow through the strainer 20 to the upstream side of the valve element 17. Since the shape of a valve body 11 does not need to be substantially changed for the provision of the strainer 20, it is possible to provided the expansion valve 6 without an increase of the manufacturing costs. <IMAGE>