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US 11,067,178 B1Granted
Multi-taper plug valve
AssigneeQuarter Tum Pressure Control, LLC
InventorsTravis Harrel, Christian Leuchtenberg, Glen H. Cuiper
Life of this patent
Estimating the term…
Abstract
A high pressure plug valve includes a valve body having an annular inner surface with a taper having a first taper direction and an annular body saver having an outer surface with a taper having a second taper direction opposite the first taper direction. The outer surface of the annular body saver adapted to interface with the annular inner surface of the valve body with a tapered interference fit.
Claims20
A high pressure plug valve comprising:
- a valve body having an annular inner surface facing towards a central axis, the inner surface of the valve body having a first taper relative to the central axis;
- and
- an annular body saver insert having an annular outer surface facing away from the central axis, the outer surface of the body saver insert having a second taper relative to the central axis, the outer surface of the annular body saver insert adapted to interface with the annular inner surface of the valve body with a tapered interference fit;
- wherein the body saver insert includes a main portion and a t-shaped projection extending from the main portion in a direction away from the central axis;
- and
- wherein the t-shaped projection includes a bridge connected on a radially inner end to the main portion of the body saver insert and connected on a radially outer end to a circumferential seal disposed circumferentially around the central axis, an outer surface of the circumferential seal defining at least part of the outer surface of the body saver insert;
- and
- wherein, when viewed in cross section along a plane through the central axis, the bridge has a first width measured in a direction parallel to the central axis and the circumferential seal has a second width measured in a direction parallel to the central axis, the second width of the circumferential seal being greater than the first width of the bridge.
5 more elements
A high pressure plug valve comprising:
- a valve body having an annular inner surface facing towards a central axis, the inner surface of the valve body having a first taper relative to the central axis;
- and
- an annular body saver insert having an annular outer surface facing away from the central axis, the outer surface of the body saver insert having a second taper relative to the central axis, the outer surface of the annular body saver insert adapted to interface with the annular inner surface of the valve body with a tapered interference fit;
- a plug disposed on the central axis;
- an annular sleeve having an annular inner surface facing toward the central axis for receiving the plug and having an annular outer surface facing away from the central axis, the annular outer surface being tapered relative to the central axis;
- and
- a tapered insert having an annular inner surface facing toward the central axis, the annular inner surface of the tapered insert being tapered relative to the central axis for providing an interference fit with the tapered outer surface of the annular sleeve and having an outer surface facing away from the central axis for interfacing with an inner surface of the annular body saver insert, the inner surface of the annular body insert saver facing toward the central axis.
4 more elements
A body saver insert for use with a plug valve having a valve body with an annular inner surface facing towards a central axis, the inner surface of the valve body having a first taper relative to the central axis, the body saver insert comprising:
- an annular body having an annular outer surface facing away from the central axis, the outer surface of the annular body having a second taper relative to the central axis, the outer surface of the annular body adapted to interface with the annular inner surface of the valve body with a tapered interference fit;
- wherein the annular body includes a main portion and a t-shaped projection extending from the main portion in a direction away from the central axis;
- and
- wherein the t-shaped projection includes a bridge connected on a radially inner end to the main portion of the annular body and connected on a radially outer end to a circumferential seal disposed circumferentially around the central axis, the outer portion of the circumferential seal defining at least part of the outer surface of the annular body;
- and
- wherein, when viewed in cross section along a plane through the central axis, the bridge has a first width measured in a direction parallel to the central axis and the circumferential seal has a second width measured in a direction parallel to the central axis, the second width of the circumferential seal being greater than the first width of the bridge.
3 more elements
Dependencies are inferred from the claim text.