Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent
1999-06-14
2000-10-31
Hepperle, Stephen M.
Fluid handling
Self-proportioning or correlating systems
Self-proportioning flow systems
13731511, 1374546, G05D 1116
Patent
active
061387053
ABSTRACT:
An improved pressure balance valve has a valve embodiment, a sleeve , a balance valve and a sealing cap. The balance valve is housed in the tubular sleeve which is further removably secured to the sealing cap. The sealing cap is detachably fixed to an opening of the valve embodiment so that both the balance valve and the sleeve are taken out with ease for cleansing purpose. The sleeve is provided with 3 ring grooves for housing sealing rings therein so as to effectively prevent hot and cold water from intermixing due to leakage. The balance valve is opened at both ends so as to permit water to be discharged in a better manner. Between every two ring grooves of the sleeve is defined a cold or hot water section and each water section is provided with 4 spaced cold water outer inlets or 4 spaced hot water outer inlets. The balance valve is also provided with 4 cold water inner inlets or 4 hot water inner inlets in each section divided by the partition board. The present pressure balance valve is more responsive to pressure variations and can be maintained with ease and speed.
REFERENCES:
patent: 3192939 (1965-07-01), Moen
patent: 4926897 (1990-05-01), Perrott
patent: 4979530 (1990-12-01), Breda
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