Valve seat and a valve sealing arrangement of a valve assembly
AssigneeFisher Controls International LLC
InventorTimothy A McMahon
Life of this patent
Estimating the term…
Abstract
A sealing arrangement for a valve can include a first seat portion, a second seat portion extending from the first seat portion in a first direction, and an anchor portion extending from the first seat portion in a second direction transverse to the first direction. The anchor portion can include an anchor section having a first sealing surface to provide a first seal within the valve and a convolution section arranged between the first seat portion and the anchor section and including at least one bend that is resiliently compressible in the second direction so that the first seat portion moves in the second direction when the convolution section of the anchor portion is compressed in the second direction.
Claims20
A valve sealing arrangement, comprising:
- a valve body with a flow passage through the valve body;
- a control member arranged in the flow passage to control flow along the flow passage, with flow along the flow passage extending in an axial flow direction at the control member;
- a rotary assembly configured to move the control member about a control member axis between a closed position and an open position to control flow through the flow passage;
- and
- a valve seat assembly including:
- an anchor portion secured to the valve body, the anchor portion including:
- an anchor section sealingly secured to the valve body;
- and a convolution section extending radially from the anchor section, relative to the axial flow direction, the convolution section having at least one bend that extends axially relative to the axial flow direction;
- and
- a first seat portion supported relative to the anchor portion by the convolution section, the first seat portion having a sealing surface that is on a radially opposite side of the convolution section from the anchor portion, relative to the axial flow direction, the sealing surface extending into the flow passage to contact the control member and provide a seal with the control member against leakage out of the flow passage.
A sealing arrangement for a valve, the sealing arrangement comprising:
- a first seat portion;
- a second seat portion extending from the first seat portion in a first direction;
- and
- an anchor portion extending from the first seat portion in a second direction transverse to the first direction, the anchor portion including:
- an anchor section having a first sealing surface to provide a first seal within the valve, the first sealing surface aligned with the first seat portion along the second direction;
- and
- a convolution section arranged between the first seat portion and the anchor section and including at least one bend that is resiliently compressible in the second direction, the convolution section connected to the first seat portion so that the first seat portion moves in the second direction when the convolution section of the anchor portion is compressed in the second direction.
A method of assembling a valve assembly, the method comprising:
- providing a valve body including an inlet, an outlet, and a flow passage extending from the inlet to the outlet;
- inserting a control member into the flow passage in a first direction to control flow in an axial direction along the flow passage;
- and
- after inserting the control member, inserting a sealing arrangement into the flow passage in the first direction, the sealing arrangement including:
- an anchor portion, including:
- an anchor section secured to the valve assembly at a first sealing surface to provide a first seal;
- and a convolution section extending from the anchor section transverse to the axial direction, the convolution section having at least one resilient bend;
- and
- a first seat portion supported relative to the anchor portion by the convolution section, the first seat portion having a second sealing surface that engages the control member to provide a second seal, the convolution section of the anchor portion and the second sealing surface of the first seat portion aligned along a second direction that is substantially perpendicular to the axial direction.
Dependencies are inferred from the claim text.