Invention Grant
US08826937B2 Flush valve anti-backflow cartridge 有权
冲洗阀防回流筒

Flush valve anti-backflow cartridge
Abstract:
A flush valve has a valve body having an inlet and an outlet, a piston disposed in the valve body between the inlet and the outlet, a cartridge disposed in the outlet and a plurality of check valves disposed serially within the cartridge for preventing backflow through the outlet and wherein vacuum effects are minimized.
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