Butterfly valve seat and valve seat cavity
AssigneeBray International, Inc.
InventorsPartha CHINNASAMY, Evan APOSTOLOU, Austin COOPER, Patrick O'CONNELL
Life of this patent
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Abstract
The disclosure relates to a butterfly valve having a valve opening defined through the valve body and including a seat retainer fastened to the valve body; a disc with an optimized profile rotatably mounted within the valve opening; an interstice between the disc and valve body; a valve seat cavity defined in the seat retainer and the valve body; a fluid port defined in the valve body, wherein the fluid port is connected to the valve seat cavity and the interstice.
Claims27
A butterfly valve having a valve opening defined through the valve body comprising:
- a seat retainer fastened to the valve body;
- a disc with an optimized profile rotatably mounted within the valve opening;
- an interstice between the disc and valve body;
- a valve seat cavity defined in the seat retainer and the valve body;
- and
- a fluid port defined in the valve body, wherein the fluid port is connected to the valve seat cavity and the interstice.
A butterfly valve body defining a valve opening and comprising
- one or more grooves defined on a front of the butterfly valve body, wherein the one or more grooves are configured to receive a valve seat;
- and
- one or more fluid ports defined through the valve body, wherein each fluid port is connected at a first end to the one or more grooves;
- and wherein each fluid port is connected at a second end to the valve opening.
A method of energizing a valve seat installed within a butterfly valve, wherein the butterfly valve has a disc rotatable within a valve opening, comprising the steps of:
- rotating the disc of the butterfly valve into a closed position, wherein the disc obstructs the valve opening;
- engaging an extension of the valve seat against an outer surface of the disc;
- providing a flow of fluid through a fluid port defined in the butterfly valve to the valve seat;
- and
- pressurizing the valve seat through the flow of fluid and reinforcing the sealing of the contact area between the disc and the valve seat.
A method of manufacturing a butterfly valve comprising the step of machining a seat retainer of the butterfly valve and a valve body of the butterfly valve in a single pass.
Dependencies are inferred from the claim text.