Two-way flow valve

Details Two-way flow valve Two-way flow valve

1989-06-27

1990-04-24

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

137509, F16K 1718

Patent

active

049191667

ABSTRACT:
A two-way valve comprises a body containing two cylinders, a pair of valve assemblies, each comprising a piston which slides in a respective cylinder, each piston having a spindle extending from one end, a metering valve member which slides on the spindle and normally engages a valve seat at an end of the relevant cylinder, a circlip or other abutment on the spindle which engages the valve member and moves it away from the seat upon movement of the piston in one direction by hydraulic pressure, and a restraining spring inhibiting that movement.

REFERENCES:
patent: 3472261 (1969-10-01), Brannon
patent: 4022113 (1977-05-01), Blatt
patent: 4199004 (1980-04-01), Wada
patent: 4228818 (1980-10-01), Nelson

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