Automatic fluid pressure equalizing valve

Details Automatic fluid pressure equalizing valve Automatic fluid pressure equalizing valve

1989-06-12

1990-05-22

Michalsky, Gerald A.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

G05D 701

Patent

active

049268970

ABSTRACT:
A valve for proportioning hot and cold water flow in response to the pressure balance between the hot and cold water supply lines includes a piston which adjusts position in response to variation in the pressure ratio of the hot and cold water supplied to the valve, thereby maintaining a uniform temperature of the water delivered by the valve. Provision is made for preventing leakage of the respective hot and cold fluids within the valve, and for preventing "hammer" during operation of the valve.

REFERENCES:
patent: 2090843 (1937-08-01), King
patent: 2593701 (1952-04-01), Sanford
patent: 2647529 (1953-08-01), Wall
patent: 2849015 (1958-08-01), Colson
patent: 2990840 (1961-07-01), Snow
patent: 3120854 (1964-02-01), Shimooka
patent: 4640309 (1987-02-01), Hoffman et al.

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