Flow-control and shutoff valve

Details Flow-control and shutoff valve Flow-control and shutoff valve

1990-10-18

1991-09-03

Schwadron, Martin P.

Valves and valve actuation

With means to increase head and seat contact pressure

Spring

251304, F16K 504, F16K 518

Patent

active

050446053

ABSTRACT:
A valve comprises a housing forming a compartment traversed by an axis and having a radially opening outlet port and an axially open inlet port, a valve plate fixed in the housing and formed relative to a flow direction therethrough with a flat upstream face and with an axially throughgoing valve orifice opening at the face, and a control plate in the housing formed relative to the flow direction with a flat downstream face riding on the valve-plate face, with an axially throughgoing control orifice opening at the face, and with an axially open socket. This control plate is pivotal on the valve plate about the axis for alignment of the orifices and flow through the valve and for misalignment of the orifices for restricted flow through the valve. A large-diameter valve stem rotatable in the housing about the axis is formed with a socket open axially toward the plates and a small-diameter connecting rod extending through the valve plate has an inner end complementary to and rotationally fixed in the valve-stem socket and an outer end rotationally fixed in the control-plate socket. One of the rod ends is axially slidable in the respective socket so that rotation of the stem is transmitted by the rod to the control plate.

REFERENCES:
patent: 3273850 (1966-09-01), Kolze
patent: 3834416 (1974-09-01), Parkison
patent: 4889157 (1989-12-01), Bergmann

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