Fabricated check valve construction

Details Fabricated check valve construction Fabricated check valve construction

1988-05-20

1989-01-10

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375278, F16K 1503

Patent

active

047966637

ABSTRACT:
A fabricated swing check valve where the valve body is in the form of a pair of tubular sections welded together in end-to-end relation. The valve seat and cage, with hinge pin hanger, are positioned in a counterbore in the inner end of one of the body sections and may be formed separately or as portions of one of the body sections. A retainer ring may be employed to hold the disc hinge pin on the hanger for the hinge pin, and the opposite ends of the valve body may be internally threaded with standard pipe threads for an economical construction.

REFERENCES:
patent: 1827913 (1931-10-01), Rymal
patent: 3191619 (1965-06-01), Allen

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