Check valve

Details Check valve Check valve

1993-01-25

1994-09-27

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

13754317, 251337, F16K 1506

Patent

active

053499840

ABSTRACT:
A check valve having a presettable cracking pressure. The check valve employs a spring-loaded valve element in which the compression spring and valve element are held into position in the valve body by means of an apertured plug.

REFERENCES:
patent: 2960998 (1960-11-01), Sinker
patent: 3025874 (1962-03-01), Yocum
patent: 4665943 (1987-05-01), Medvick
patent: 4681132 (1987-07-01), Lardner
patent: 4805664 (1989-02-01), Mattei
patent: 4953589 (1990-09-01), Nakamura
patent: 5098405 (1992-03-01), Peterson

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