Adjustable check valve

Details Adjustable check valve Adjustable check valve

1990-12-17

1992-02-25

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Direct response valves

251337, F16K 1502

Patent

active

050904469

ABSTRACT:
An adjustable pressure check valve comprises a generally cylindrical body having a throughbore communicating with an inlet and an outlet at opposite ends thereof, an annular valve seat in the throughbore, a valve member having a sealing surface for engagement with the seat disposed in the bore for movement into and out of engagement with the seat, a compression spring disposed in the throughbore for biasing the valve member into engagement with the seat, and an adjusting member for adjusting the biasing force of the spring on the valve member.

REFERENCES:
patent: 3422840 (1969-01-01), Bryant et al.
patent: 4049017 (1977-09-01), Jones
patent: 4265271 (1981-05-01), Rosaen et al.
patent: 4718442 (1988-01-01), Nicoll

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