Valve seal

Details Valve seal Valve seal

1992-02-07

1993-01-12

Chambers, A. Michael

Valves and valve actuation

Hermetic flexible wall seal for actuator

Diaphragm

251174, 251176, 251356, 251359, 251368, F16K 3100, F16K 2500

Patent

active

051783665

ABSTRACT:
A fluid flow control valve is provided with a seal comprising a thin metallic film backed by a resiliently deformable body. The seal is mounted on a closure part which may be either the valve stem or the valve seat. The thin film and deformable body are deformed so as to conform to the surface the metallic film seals against as the valve is closed. As the valve is opened, the deformable body returns to its initial state thus returning the thin film to its initial state.

REFERENCES:
patent: 1427680 (1922-08-01), English
patent: 1527154 (1925-02-01), Mallory et al.
patent: 2402950 (1946-07-01), Culver et al.
patent: 2519541 (1950-08-01), Bryant
patent: 4126295 (1978-11-01), Natalizia

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