Check valve

Details Check valve Check valve

1985-04-05

1986-08-12

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375157, F16K 1503

Patent

active

046050418

ABSTRACT:
A check valve comprising a valve body with a bore and a counterbore, an insert inside the counterbore, and a flapper with a flapper pin is disclosed. The flapper pin is mounted in a recess in the inside face of the insert. A spring for biasing the flapper toward the closed position is located in a recess in the counterbore face of the valve body.

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