Fluid handling – Systems – Multiple inlet with single outlet
Patent
1993-01-21
1994-10-04
Hepperle, Stephen M.
Fluid handling
Systems
Multiple inlet with single outlet
251 3001, F16K 1122, F16K 3142
Patent
active
053517156
ABSTRACT:
A coating material color change system includes a manifold having a first passageway through which a selected color flows during its selection, a plurality of coating material passageways intersecting the main passageway, and an equal plurality of coating material supply valves mounted to the manifold. Each coating material supply valve has a body and a member movable in the interior of the valve body for controlling the flow of the coating material to be supplied by that coating material supply valve through a respective coating material passageway to the main passageway, and a mechanism for actuating the member. The mechanism is controllable by a superatmospheric pressure fluid signal selectively to control the position of the member and thus the supply of the coating material to the first passageway. The manifold and valve bodies include second passageways and means for coupling the second passageways to a source of operating fluid under superatmospheric pressure. A valve seat couples each second passageway to the interior of a respective valve body. Intrinsically safe electrically operated valves control the flow of superatmospheric pressure fluid through respective second passageways from the source of superatmospheric pressure fluid to the interiors of the respective valve bodies.
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ABB Flakt, Inc.
Hepperle Stephen M.
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