Single handle mixing valve incorporating a cartridge and a reversing piston

摘要

A mixing valve for a faucet includes a cartridge and a chamber of a body and a reversing piston within a bore positioned below the chamber. The piston has passageways therethrough in communication with the inlets of the body and also in communication with respective entrances of the cartridge. As the piston is rotated 180 DEG from its initial position, the passageways connect the opposite inlets with the respective entrances in the cartridge. As such operation of the handle can always be conventional where movement of the handle to the right provides cold water and to the left provides hot water irrespective as to which inlets in the body provide the hot and cold water.