Fluid handling – Removable valve head and seat unit – Threaded into valve casing
Patent
1990-12-04
1992-02-04
Walton, George L.
Fluid handling
Removable valve head and seat unit
Threaded into valve casing
137315, 1376361, 251 5, 251263, F16K 1118, F16K 4300, F16K 5514
Patent
active
050852450
ABSTRACT:
A flow control device has a body having a fluid holding chamber and an inlet port and two outlet ports which are adapted to removably receive valve cartridges. Each valve cartridge has a body having an inlet, an outlet and a fluid flow passageway extending therebetween. A collapsible tubing is mounted in the fluid flow passageway of the valve cartridge body. A piston movably mounted in the fluid flow passageway in the valve cartridge's body is moved into and withdrawn from the inlet of the collapsible tubing to selectively block and unblock the inlet of the collapsible tubing. The blocking of the inlet of the collapsible tubing causes a pressure decrease in the collapsible tubing downstream of the inlet which causes fluid pressure in the fluid flow passageway surrounding the collapsible tubing to collapse a portion of the collapsible tubing around the piston to further block fluid flow through the collapsible tubing. Valve cartridges are selectively provided in the inlet and output ports of the body of the flow control device to configure the flow control device for particular applications.
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Remote Controls, Inc.
Walton George L.
LandOfFree
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