Fluid control valve

Details Fluid control valve Fluid control valve

1975-07-21

1980-04-08

Cline, William R.

Valves and valve actuation

Valve

Removable seat engaging element

251358, 251368, F16K 134

Patent

active

041968867

ABSTRACT:
The present invention provides an improvement in fluid flow control valves which utilize polymeric rubbery materials either as the valve member or the valve seat in the flow control valve. The improvements are obtained by utilizing as the rubbery material for either the valve seat or the valve, a semi-rigid to rigid rubbery material prepared by curing a nitrile rubber with from three to 15 parts of sulfur per 100 parts of rubber. Such cured rubbers when utilized in said application, have been found to overcome the problems exhibited by the rubbery materials heretofore used for such applications.

REFERENCES:
patent: 2414577 (1947-01-01), Adair et al.
patent: 2953347 (1960-09-01), Phillips
patent: 3090596 (1963-05-01), Gifford
patent: 3236496 (1966-02-01), Rosenstein et al.
patent: 3326520 (1967-06-01), Guenther
patent: 3445089 (1969-05-01), Murray
patent: 3531086 (1970-09-01), Shannon
Introduction to Rubber Technology--Morton--Reinhold Pub. Corp., New York, 1959--p. 292.
Synthetic Rubber--Whitby--John Wiley & Sons, Inc., New York 1954--pp. 808 and 809.
Vulcanization and Vulcanizing Agents--Hoffmann--Palmerton Pub. Co., Inc.--N.Y., FIGS. 2 & 3 & p. 76.

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