Compact swing check valve

Details Compact swing check valve Compact swing check valve

1992-06-02

1993-06-01

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375278, F16K 1503

Patent

active

052151182

ABSTRACT:
A swing check valve including a body and a unitary seat and cage member. The seat and cage member supports a disc and has a seating portion facing downstream to mate with the disc. The body has an upstream end, a downstream end and a bore interconnecting the upstream and downstream ends. The bore includes an annular shoulder facing downstream and an annular abutment downstream from the annular shoulder. An annular shoulder on the seat and cage member mates with the annular shoulder of the bore to prevent upstream movement of the seat and cage member. The annular abutment of the bore engages the downstream end of the seat and cage member to keep the seat and cage member from moving downstream.

REFERENCES:
patent: 1266279 (1918-05-01), Tyler
patent: 2262726 (1941-11-01), Nickerson
patent: 3934608 (1976-01-01), Guyton
patent: 3945398 (1976-03-01), Masheder
patent: 4605041 (1986-08-01), Teumer

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