Valves and valve actuation – Reciprocating valve – Gate
Patent
1980-11-10
1983-03-22
Rosenthal, Arnold
Valves and valve actuation
Reciprocating valve
Gate
251328, 251368, 251266, F16K 302
Patent
active
043772749
ABSTRACT:
A knife gate valve (10) comprises an elongated, relatively-flat rigid frame (16) having two rigid side plates (24 and 26) being spaced from one another. A relatively-resilient valve liner (14), forming a valve seat about a liquid flow passage (22) through the frame (16) is insertable into the frame (16) from a first end of the frame so that the liner (14) can be replaced without detaching the gate valve from a fluid system with which it is used. The valve liner (14) has a slot (45) extending into the valve liner from the first end for receiving a gate blade (12). In the preferred embodiment, rigid shields (32) are attached to the frame side plates (24 and 26) about the liquid passage (22) and extend into the liquid passage (22) beyond outer side faces of the liner (14). The liner is made in the form of three inserts which can be positioned within a cavity (31) formed by the shield and frame from the first end.
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Advertisement: McAvity: Fabricated Stainless Steel Knife Gate Valve.
Advertisement: FABRI--VALVE; Fig. 105 Wafer Knife Gate Valve.
Advertisement: Hercules Technical Report: 1900 Engineering Information UHMW Polymer, M--239A.
Advertisement: FABRI--VALVE: The World's Two Greatest Knife Gates? You Don't Know the Half of It.
Advertisement: Josam--Wey: Knife Gate Valves.
Advertisement: L&M Valve Company, 3633 Poplar Drive, S.W.
"Fabri--Valve" advertisement, FORM 43-C-4-76, A Dillingham Company, P.O. Box 4367, Portland, OR 97208.
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