Fluid valve with protected valve closing seal

A fluid mixing valve for use within a valve fixture such as a kitchen faucet, lavatory faucet or shower/tub control including a body, a seal support positioned within said body and mounted thereto, said seal support having a hot water inlet and a cold water inlet and spaced hot and cold water outlets respectively connected thereto, said body having spaced hot and cold water discharges aligned respectively with said seal support hot and cold water outlets,

• an annular space defined between the interior wall of said body and the exterior of said seal support, a thin wall piston extending about said seal support and being rotatably and axially movable within said space relative to said seal support, said piston being in substantial contact with the interior of said boy and exterior of said seal support and having water opening means communicable with either or both of said seal support outlets to control the flow of water to said body discharges, said outlets and body discharges having a relative size and configuration so as to effect no substantial pressure differential when water flows therethrough,
• and a valve closing seal extending peripherally about each seal support outlet and in contact with the interior of said piston.