Wafer swing check valves

Details Wafer swing check valves Wafer swing check valves

1976-06-18

1978-12-05

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375278, F16K 1503

Patent

active

041281110

ABSTRACT:
A wafer-type swing check valve having a body flange with a counter-bore into which an easily removable lapped disc support is located. The disc is hinged to the disc support and positioned to seat in a counterbored opening in the disc support to prevent reverse flow. The disc and its support are readily removable as a unit from the valve body. A removable seat may be provided in the disc support to simplify seat relapping.

REFERENCES:
patent: 286676 (1883-10-01), Belknap
patent: 941713 (1909-11-01), Jacobs
patent: 2454072 (1948-11-01), Long
patent: 2729238 (1956-01-01), Hite
patent: 2930400 (1960-03-01), Wheatley
patent: 3817277 (1974-06-01), Wheatley

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