Swing check valve

Details Swing check valve Swing check valve

Filed on

1976-10-12

Date issued

1979-02-27

Examiner

Nilson, Robert G.

Patent Class

Fluid handling

SubClass

Line condition change responsive valves

SubSubClass

Direct response valves

Other Related Categories

1375274, F16K 1503

Type

Patent

Status

active

Patent number

041413814

Description

ABSTRACT:
A swing check valve which includes a valve body having an inlet and outlet. A recess in the valve body designed to hold a seal ring and a check valve disc swingable between open and closed positions. The disc is supported by a high strength wire secured at one end in a support spacer pinned through bearing blocks fixed to the valve body and at its other end in a groove formed on the outer peripheral surface of the disc. The parts are designed and chosen such to provide a lightweight valve disc which is held open by minimum velocity of fluid flowing through the valve which thus reduces oscillations and accompanying wear of bearings supporting the valve operating parts.

REFERENCES:
patent: 1294003 (1919-02-01), Weaver
patent: 1982189 (1934-11-01), Anderson
patent: 2504006 (1950-04-01), Davis
patent: 2717001 (1955-09-01), Perrault
patent: 3613720 (1971-10-01), Welch

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