Tube-end butterfly metering and shutoff valve
First Claim
1. A butterfly valve comprising:
- a valve body having a passage;
a valve shaft assembly comprising a first shaft portion and a second shaft portion in opposing spaced relation, an intermediate portion between the first shaft portion and the second shaft portion, and a support plate secured to the valve shaft assembly, the first and second shaft portions rotatably coupling the valve shaft assembly to the valve body, the intermediate member forming a chamber in fluidic communication with the passage, the support plate disposed within the chamber at a closed valve position approximately perpendicular to a direction of fluid flow through the passage;
a plate secured to the support plate, the plate having an inner portion and a flange radially outward of the inner portion, the flange directed away from the support plate; and
a tube disposed within the passage, the tube being friction fit or clearance fit over a portion of the plate.
1 Assignment
0 Petitions
Accused Products
Abstract
A butterfly valve comprising a valve body having a passage, a valve shaft assembly, a plate, and a tube is provided. The valve shaft assembly comprises first and second shaft portions in opposing spaced relation, an intermediate portion therebetween, and a support plate secured to the valve shaft assembly. The first and second shaft portions rotatably couple the valve shaft assembly to the valve body. The intermediate member forms a chamber in fluidic communication with the passage. The support plate is disposed within the chamber at a closed valve position approximately perpendicular to a direction of fluid flow through the passage. The plate is secured to the support plate and has an inner portion and a flange radially outward of the inner portion. The flange is directed away from the support plate. The tube is disposed within the passage and friction or clearance fit over a portion of the flange.
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Citations
34 Claims
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1. A butterfly valve comprising:
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a valve body having a passage; a valve shaft assembly comprising a first shaft portion and a second shaft portion in opposing spaced relation, an intermediate portion between the first shaft portion and the second shaft portion, and a support plate secured to the valve shaft assembly, the first and second shaft portions rotatably coupling the valve shaft assembly to the valve body, the intermediate member forming a chamber in fluidic communication with the passage, the support plate disposed within the chamber at a closed valve position approximately perpendicular to a direction of fluid flow through the passage; a plate secured to the support plate, the plate having an inner portion and a flange radially outward of the inner portion, the flange directed away from the support plate; and
a tube disposed within the passage, the tube being friction fit or clearance fit over a portion of the plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A butterfly valve comprising:
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a valve body forming a passage, a shaft aperture, and a recess, the shaft aperture transverse to the passage and in opposing spaced relation with and axially aligned with the recess; a valve shaft assembly including a first shaft portion and a second shaft portion in opposing spaced relation, an intermediate member, and a support plate, the first shaft portion rotatably extending into the shaft aperture and the second shaft portion rotatably situated within the recess, the intermediate member disposed between the first and second shaft portions and forming a chamber in fluidic communication with the passage, the support plate disposed within the chamber at a closed valve position approximately perpendicular to a direction of fluid flow through the passage; a plate secured to the support plate, the plate having a inner portion and a flange radially outward of the inner portion, the flange directed away from the support plate; and a tube disposed within the passage, the tube friction fit with the passage or fastened to the passage and friction fit over at least a portion of the flange; wherein a rounded portion of the support plate and a corresponding portion of the plate are rotatable into the tube to place the valve in an open position and rotatable to a location at an end of the tube to place the valve in a closed position. - View Dependent Claims (24, 25, 26, 27)
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28. A butterfly valve shaft assembly for use with a ball valve housing, the butterfly valve shaft assembly comprising:
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a first shaft portion; a second shaft portion in opposing spaced relation with the first shaft portion; an intermediate member between the first and second shaft portions and having a chamber passing therethrough; a support plate disposed within the chamber at a closed valve position approximately perpendicular to a direction of fluid flow through the passage; and a plate secured to the support plate, the plate having an inner portion and a flange radially outward of the inner portion, the flange directed one of away from or toward the support plate; and a tube disposed within the passage, the tube being friction fit or clearance fit over a portion of the plate. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A butterfly valve comprising:
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a valve body having a passage; a valve shaft assembly comprising a first shaft portion and a second shaft portion in opposing spaced relation, an intermediate portion between the first shaft portion and the second shaft portion, and a support plate secured to the valve shaft assembly, the first and second shaft portions rotatably coupling the valve shaft assembly to the valve body, the intermediate member forming a chamber in fluidic communication with the passage, the support plate disposed within the chamber at a closed valve position approximately perpendicular to a direction of fluid flow through the passage; a plate secured to the support plate, the plate having a rigid portion in the radial direction, the plate having an inner portion and a flange radially outward of the inner portion, the flange directed one of away from or toward the support plate; and a tube disposed within the passage, the tube friction fit or clearance fit over at least a portion of the plate.
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Specification