Fluid handling – With casing – support – protector or static constructional... – Jacketed
Patent
1985-02-20
1986-05-13
Chambers, A. Michael
Fluid handling
With casing, support, protector or static constructional...
Jacketed
251208, 251302, F16L 700
Patent
active
045879893
ABSTRACT:
A turn disc valve (10) includes a rigid, sealed, valve body having first and second, parallel, generally coextensive side-wall rigid plates (20 and 22) with a spacing wall (24) sealed between them to define a flat cavity therebetween. A relatively-resilient, high-density polyethylene, flat liner snugly fits inside said housing cavity and is made up of first and second substantially-flat side liner elements (32 and 34), each of a size and shape for substantially covering opposite interior side walls of the flat body cavity, and a spacer insert element (36) positioned between them. The liner defines a circular valve cavity, with the body side-wall plates and the side liner elements defining a fluid passage through the valve. A circular, flat, gate (16) is positioned snugly in the valve cavity but has freedom of rotation. The circular gate has a hole therethrough which, when the gate is rotated, can be brought into and out of registration with the fluid passage to respectively allow fluid to pass through the fluid passage and to block such flow. A drive means extends through the body and the liner to engage the gate for rotating it.
REFERENCES:
patent: 384849 (1888-06-01), Hood
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patent: 3659822 (1972-05-01), Nagy
patent: 3779510 (1973-12-01), Krogsrud
patent: 4070161 (1978-01-01), Harter
patent: 4161307 (1979-07-01), Clinch et al.
patent: 4377274 (1983-03-01), Mayhew, Jr.
patent: 4432387 (1984-02-01), Sims
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