Butterfly valve construction having a composite seat

Details Butterfly valve construction having a composite seat Butterfly valve construction having a composite seat

1986-11-26

1987-08-11

Chambers, A. Michael

Valves and valve actuation

Rotary valves

Butterfly

251317, 251358, F16K 1226

Patent

active

046856110

ABSTRACT:
A butterfly valve having a composite, reinforced seat, the valve having a one piece body defining a radially inwardly extending annular rib, the valve seat being a U-shaped annular member of a generally resilient material and having a radially outwardly opening channel which engages the rib of the valve body to provide an interlocking engagement between the valve seat and the valve body, the seat including a series of generally U-shaped structural members made of a material more rigid than the resilient material of the seat, the U-shaped member being bonded to the seat, the U-shaped members being spaced sufficiently to permit distortion of the seat so that it can be inserted in the valve body.

REFERENCES:
patent: 2747608 (1956-05-01), Grove
patent: 2809060 (1957-10-01), Thompson
patent: 2991043 (1961-07-01), Saar
patent: 3133722 (1964-05-01), McGuire et al.
patent: 3314641 (1967-04-01), Overbaugh
patent: 4317558 (1982-03-01), Sherlaw
patent: 4402486 (1983-09-01), Jaequist

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