Anti-clog water valve

Details Anti-clog water valve Anti-clog water valve

1993-04-22

1993-12-14

Walton, George L.

Fluid handling

Processes

251 3003, 251 3005, 251 38, 251 45, 251120, F16K 3104, F16K 3140, F16K 31385

Patent

active

052693333

ABSTRACT:
A household appliance, solenoid controlled, pilot actuated inlet water valve has a diaphragm insert with a bleed valve that substantially closes when a main valve is open to reduce water and contaminate flow through the bleed passage. The pilot valve outlet extension has openings to reduce vacuum drawn from the outlet into an actuation chamber thereby further reducing water flow through the bleed passage. The bleed passage is internally and externally configured to reduce contamination impairment. An anti-hammer rib or lip is placed on the pilot valve outlet extension upstream of a guide tip which provides less close-fitting surface that may be impaired by contaminates while still dampening valve closing to reduce valve noise and pipe hammer.

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