Gate valve for two way flow

Details Gate valve for two way flow Gate valve for two way flow

1986-02-10

1987-07-14

Schwadron, Martin P.

Valves and valve actuation

Reciprocating valve

Gate

251329, F16K 302

Patent

active

046797700

ABSTRACT:
A gate valve for pulp stock slurries and the like has a smooth flow passage for two way flow and has no grooves or cavities where pulp stock fibres or other particles collect. The valve comprises a rigid valve body having a flow passage with smooth curved walls therethrough, the body having a gate blade slot in the approximate center of the flow passage, a flexible resilient seat flush with the smooth curved walls, the seat being in the form of a strip extending through one end of the gate blade slot, around the flow passage and through the other end of the gate blade slot, the strip held in place by a body port insert ring attached and sealed to the valve body, and a gate blade with a semi-circular end, the gate blade adapted to fit in the gate blade slot to seal against the resilient seat.

REFERENCES:
patent: 2728549 (1955-12-01), Smith-Peterson
patent: 2829862 (1958-04-01), Wey
patent: 3013770 (1961-12-01), Anderson et al.
patent: 3033517 (1962-05-01), Rovang et al.
patent: 3559951 (1971-02-01), Whiteman, Jr.
patent: 4377274 (1983-03-01), Mayhew, Jr.

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