Balance valve disc and seat structure

Details Balance valve disc and seat structure Balance valve disc and seat structure

1978-08-02

1980-11-04

Cline, William R.

Valves and valve actuation

Balanced valves

Reciprocating

13750518, F16K 3902

Patent

active

042315484

ABSTRACT:
A balanced valve disc and seat structure has a hollow valve disc engageable with the seat and pressure responsive means supported in the disc; the pressure responsive means divides the hollow valve disc into separate first and second chambers with a first aperture in the disc communicating with the first chamber and a second aperture in the disc communicating with the second chamber. A plunger has one end secured to the pressure responsive means with the other end of the plunger extending through the second chamber and the valve seat with means engaging the other end of the plunger when the first chamber has a higher pressure than the second chamber.

REFERENCES:
patent: 2087037 (1937-07-01), McCarthy
patent: 2622613 (1952-12-01), McNeal
patent: 3011521 (1961-12-01), Smith
patent: 3554611 (1971-01-01), Kawabe et al.
patent: 3873063 (1975-03-01), Illing

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