Replaceable valve seat ring with enhanced flow design
AssigneeFisher Controls International LLC
InventorsRandy J. Hall, Ronald C. Burr, Carl D. Miller
Life of this patent
Estimating the term…
Abstract
A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.
Claims20
A replaceable valve seat ring comprising:
- an annular ring body;
- an open flow passage extending through the ring body;
- a seating surface on the ring body adjacent to one end of the flow passage;
- and
- a tool accepting region formed concentric with and at least partially along the flow passage, the tool accepting region adapted to receive a standard tool head therein for installing and removing the valve seat ring.
A valve assembly comprising:
- a valve body;
- a fluid passageway extending through the valve body and having a fluid inlet and a fluid outlet;
- an orifice region defined within the fluid passageway;
- a valve plug disposed within the passageway;
- and
- a replaceable annular valve seat ring positioned in the orifice region, wherein the valve seat ring and the valve plug are movable relative to one another to selectively open or close the flow passage, wherein the valve seat ring has an open flow passage extending therethrough, a seating surface adjacent to one end of the flow passage, and a tool accepting region formed concentric with and at least partially along the flow passage, the tool accepting region adapted to receive a standard tool head therein for installing and removing the valve seat ring.
A method of installing a valve seat within a valve assembly, the method comprising the steps of:
- choosing an appropriate valve seat having an annular ring body, an open flow passage extending through the ring body, and a tool accepting region of the flow passage formed concentric with and at least partially along the flow passage;
- placing the chosen valve seat into a flow orifice of a valve body of the valve assembly;
- selecting a tool with a standard tool head that fits the tool accepting region;
- inserting the standard tool head into the tool accepting region of the valve seat;
- and manipulating the tool to install the valve seat into the orifice region.
Dependencies are inferred from the claim text.