Gate valve having removable seals

Details Gate valve having removable seals Gate valve having removable seals

1992-09-08

1993-10-26

Michalsky, Gerald A.

Valves and valve actuation

Reciprocating valve

Gate

137242, 251193, 251329, F16K 302

Patent

active

052558932

ABSTRACT:
A knife gate valve is provided with peripheral seals which can be removed for cleaning and inspection without having to remove the valve from the duct or other conduit to which the valve is mounted. The longitudinal seals are pressure loaded and seat against the edge rather than the face of the gate. The seals are shielded from the abrasive effects of the material flowing through the valve by peripheral spaced apart beams which project into the valve opening. A series of cutouts in the beams allows the space between the beams to be cleaned of any accumulated material during reciprocation of the gate.

REFERENCES:
patent: 4221307 (1980-09-01), Peterson
patent: 4546788 (1985-10-01), Stalder et al.
patent: 4938250 (1990-07-01), Peterson

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