US20100301251A1 - Plug valve with flow area equal to or greater than the flow area of the connected piping - Google Patents
Plug valve with flow area equal to or greater than the flow area of the connected piping Download PDFInfo
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- US20100301251A1 US20100301251A1 US12/853,029 US85302910A US2010301251A1 US 20100301251 A1 US20100301251 A1 US 20100301251A1 US 85302910 A US85302910 A US 85302910A US 2010301251 A1 US2010301251 A1 US 2010301251A1
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- valve
- plug
- inlet port
- area
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
Definitions
- the present invention relates generally to the field of eccentric plug valves which may be used to control the flow of fluid in pipe systems.
- Eccentric plug valves have been available to industry for some time, and typically include a main body having an inlet port and outlet port and a plug mounted for rotation about a shaft, so that a plug face is eccentrically rotated to either close off or open flow through a valve seat area.
- Such valves are used, for example, in wastewater, mining, fresh water, and many other industrial and HVAC services.
- the plug valves typically have a long service life and are known for their reliability. Many of the valves are sold for use in sludge and slurry services such as wastewater, ash, mining tailings, and other similar applications. Eccentric plug valves generally include two types: wherein the rotatable plug and mating seat is either cylindrical or spherical.
- Cylindrical plugs are sometimes desirable and seal against a cylindrical seat around a seal seat area. When the valve is closed, a seal is created between the plug and a typically nickel seat. Oftentimes, the valves have a restriction in their internal flow when open, because due to internal configuration the flow area may for example be only approximately 80% of the internal pipe diameter flow area for which the valve is connected.
- the plugs are normally elastomer faced for tight fluid shutoff and for abrasion and erosion resistance. Valves are often provided with a standard “face to face” length conforming to US and ISO standards for plug valves.
- Eccentric plug valves are quite versatile. In most liquid service for example, it is recommended that the valve be installed with the nickel seat in the downstream location of the valve. In the case of suspended solid service such as slurry and sludge, it is sometimes recommended that the valve be installed with the seat upstream and/or with shaft axis horizontal, such that the plug is raised above the pipe centerline when the valve is open. This assists with keeping the plug and bearings away from accumulated settled grit, fines and other debris that can accumulate in the bottom of a valve body.
- an apparatus in some embodiments provides an improved plug valve with cylindrical seating that can at least to some degree enhance fluid flow and/or ameliorate the effect of suspended solids use.
- some embodiments of the invention provide a valve apparatus, comprising, a valve body having an inlet port and an outlet port having a seat opening; and a plug rotatably mounted in the valve body and having a cylindrically curved sealing face and a substantially planar second face opposite to the curved sealing face.
- some embodiments of the invention provide a valve apparatus, comprising, a valve body having an inlet port and an outlet port having a seat opening; and a plug valve rotatably mounted in the valve's body having a cylindrically curved sealing face wherein the inlet part comprises an entry region having a change in outline shape but no change in total area.
- valve apparatus comprising, housing means having an inlet port and an outlet port having a seat opening; and sealing means rotatably mounted in the housing means having a cylindrically curved sealing face and a substantially planar second face opposite to the curved sealing face.
- some embodiments of the invention provide a valve apparatus, comprising, housing means having an inlet port and an outlet port having a seat opening; and sealing means mounted in the housing means having a cylindrically curved sealing face, wherein the inlet part comprises an entry region having a change in outline shape but no change in total area.
- some embodiments of the invention provide a method of improving flow is a valve assembly housing a valve body having an inlet port and an outlet port having a seat opening, comprising, rotating a plug mounted in the valve body having a cylindrically curved sealing face and a substantially planar second face opposite to the curved sealing face, wherein the plug is moveable between an open position and a closed position, so that in the open position the second face of the plug is aligned with a vertical corner surface located towards the inlet port and a substantially vertical seat edge located towards the outlet port.
- FIG. 1 is a cross-sectional view of a plug valve according to a preferred embodiment of the invention, taken through line 1 - 1 in FIG. 2 .
- FIG. 2 is a top view of a plug valve according to a preferred embodiment of the invention.
- FIG. 3 is a side view of a valve plug used in the embodiment of FIG. 1 .
- FIG. 4 is a cross-sectional view taking through line 4 - 4 in FIG. 3 .
- FIG. 5 is a cut away perspective view of an embodiment of the plug valve.
- FIG. 6 is a cut away top view of the valve of FIG. 5 shown in an open position
- FIG. 7 is a cut away top view of the valve of FIG. 5 shown in a closed position.
- FIG. 8 is a perspective view of a valve body used in the embodiment of FIG. 1 .
- FIG. 9 is a cross-sectional view of the valve body shown FIG. 8 , taken through line 9 - 9 .
- FIG. 10 is a symmetric cross-sectional diagram showing a flow path of fluid through a valve according to a preferred embodiment with the valve in an open position.
- FIG. 11 is a symmetric cross-sectional diagram showing a flow path of fluid through a prior art valve arrangement with this valve in an open position.
- FIG. 12 is a diagram similar to FIG. 10 , but showing the valve installed in a reverse orientation.
- FIG. 13 is a diagram similar to FIG. 11 , but showing the valve installed in a reverse orientation
- the present invention in some embodiments provides an improved plug valve and flow control method with cylindrical seating that can at least to some degree enhance fluid flow and/or ameliorate the effect of suspended solids use.
- FIG. 1 illustrates a plug valve 10 according to a preferred embodiment of the invention, including a body 12 , a bonnet 14 , and a valve plug 16 .
- the valve plug 16 is rotatably mounted within the chamber formed by the housing 12 and the bonnet 14 and is moveable between open and closed positions as will be described in more detail below.
- FIG. 2 is a top view of the arrangement shown in FIG. 1 and further illustrates the housing 12 , bonnet 14 and a shaft portion of the valve plug 16 .
- valve plug 16 is illustrated to have the shaft 18 , a plug region 20 having a back face 22 and a front sealing face 24 , and upper and lower connecting regions 26 and 28 .
- a lower shaft 30 is also mounted by a bushing for rotation with respect to the body 12 and the shaft 18 is mounted for rotation with respect to the bonnet 14 .
- the plug 16 is mounted for rotation about an axis of rotation that is a longitudinal axis through shafts 18 and 30 .
- a separate top and/or bottom shaft can be attached to the shaft, for example by being pinned to the plug.
- FIGS. 1-10 show flow in one direction from an inlet to outlet, it will be appreciated that in some installations the orientation of the valve are reversed so that the “inlet” and “outlet” sides are reversed. This type of installation, for example of which is shown in FIG. 12 , is typically intended for installations high in sludge and/or particulates.
- FIG. 5 illustrates that the rear face 22 of the valve plug 16 has a substantially flat or planar profile as shown, while the outer face 24 has a cylindrical profile shape.
- the body 12 includes an inlet flange 30 and an outlet flange 32 .
- the inlet flange 30 leads to an inlet flow path area 34 which transitions from a circular opening 36 to a slightly narrower curved side entry transition region leading to a rear edge 40 , and opposite arranged to a tapered side 41 having a relatively straight vertical corner inlet edge 42 .
- valve 10 When the valve 10 is in the open position shown in FIG. 5 , the flat surface 22 of the valve plug 16 is substantially aligned with edge 42 .
- a cylindrical rectangular valve seat area 44 is provided against which the outer surface 44 of the valve plug 16 engages when the valve 10 is in a closed position, as will be described in further detail below. Behind the seat 44 , the flow path generally expands due to diverging tapered surfaces 46 leading to the end of the outlet flange 32 .
- the valve 10 is shown in an open position in FIG. 6 .
- the body 14 includes the front flange 30 , and the curved sidewall 38 leading to a rear side edge 40 .
- the other rear vertical side edge 42 is also shown and it is in substantial alignment with the rear surface 22 of the plug 16 .
- Also shown is the outer sealing face 24 of the plug 16 and the overall seat 44 , as well as diverging tapered surfaces 46 .
- FIG. 6 illustrates a generally planar relationship between the vertical inlet edge 42 , the vertical seat edge 45 , and the rear or inside face 22 of the plug 28 .
- FIG. 7 shows the valve 10 in a closed position.
- the outer surface 24 of the valve plug 16 is in contact with the seat 44 to perform the intended shutoff of fluid flow.
- FIGS. 8 and 9 are perspective and cross sectional views of the valve body 12 .
- inside of the inlet flange 30 can be seen the vertical inlet edge 42 as well as the more rounded extended inlet edge 40 defined by the gradual transition region 38 .
- Near the outlet flange 32 can be seen the vertical edges of the seat 44 and the transition region 46 .
- FIG. 9 The cross sectional view of FIG. 9 further shows on the inlet side, the rectangular cylindrical outline of the seat 44 and its left edge 45 , as well as the circular outlet region 46 .
- FIG. 10 is a simplified schematic flow diagram which illustrates some of the benefits achieved by various aspects of various embodiments of the present invention.
- the flat surface 22 of the rear of the valve plug 16 and its alignment with the vertical flow boundary edge 42 and the vertical edge 45 of the seat 44 provide a smooth fluid flow through the valves 10 .
- the relatively straight vertical edge 40 and the smooth entry region 38 also permits an uninterrupted smooth fluid flow at that area.
- the volumetric flow area at the front inlet face of the flange 30 is larger than the volumetric flow area taken at the vertical edge 40 , this does not have to be the case because during the transition from the front opening 36 to the vertical edge 40 , a change in the vertical height the flow cross-sectional area can also be occurring. Therefore, the two dimensional flow area at front face edge 36 and at the vertical edge 40 can be made the same as each other, and further can be made 100% the inner diameter area of the pipe to which the valve is connected if that is so desired. Also, the two dimensional flow area at the seat 44 can be made equal to the inner diameter area of the pipe
- FIG. 10 also contrasts this particular embodiment of the invention with a prior art arrangement as shown in FIG. 11 .
- Some differences that are illustrated include, for example, that a constricting wedge area 70 shown in FIG. 11 is not present in FIG. 10 , which instead shows a smooth entry region 38 .
- a convex rear surface 72 of the plug is also shown in FIG. 11 , which can undesirably restrict the free flow area compared to the flat rear surface 22 of this embodiment of FIG. 10 .
- FIG. 12 shows the valve 10 with the flow direction reversed and in a horizontal position. This installation may be preferred for example in applications high in sludge and/or particulates. It will be seen that the smooth transition region 38 allows sediment to be carried out and not form a dam as would occur at location 99 of the prior art shown in FIG. 13 (wherein the valve of FIG. 11 installed upside down and backwards).
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- Lift Valve (AREA)
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- Magnetically Actuated Valves (AREA)
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- Safety Valves (AREA)
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Abstract
Description
- The present invention relates generally to the field of eccentric plug valves which may be used to control the flow of fluid in pipe systems.
- Eccentric plug valves have been available to industry for some time, and typically include a main body having an inlet port and outlet port and a plug mounted for rotation about a shaft, so that a plug face is eccentrically rotated to either close off or open flow through a valve seat area. Such valves are used, for example, in wastewater, mining, fresh water, and many other industrial and HVAC services.
- The plug valves typically have a long service life and are known for their reliability. Many of the valves are sold for use in sludge and slurry services such as wastewater, ash, mining tailings, and other similar applications. Eccentric plug valves generally include two types: wherein the rotatable plug and mating seat is either cylindrical or spherical.
- Cylindrical plugs are sometimes desirable and seal against a cylindrical seat around a seal seat area. When the valve is closed, a seal is created between the plug and a typically nickel seat. Oftentimes, the valves have a restriction in their internal flow when open, because due to internal configuration the flow area may for example be only approximately 80% of the internal pipe diameter flow area for which the valve is connected. The plugs are normally elastomer faced for tight fluid shutoff and for abrasion and erosion resistance. Valves are often provided with a standard “face to face” length conforming to US and ISO standards for plug valves.
- Eccentric plug valves are quite versatile. In most liquid service for example, it is recommended that the valve be installed with the nickel seat in the downstream location of the valve. In the case of suspended solid service such as slurry and sludge, it is sometimes recommended that the valve be installed with the seat upstream and/or with shaft axis horizontal, such that the plug is raised above the pipe centerline when the valve is open. This assists with keeping the plug and bearings away from accumulated settled grit, fines and other debris that can accumulate in the bottom of a valve body.
- While the above valve designs are quite useful, available industrial plug valves valve designs, such as an example shown in
FIG. 11 , have typically had a restriction to the fluid flow that occurs due to restrictions in the flow area configuration, for example, the flow area is approximately 80% of the pipe area in some designs. - One solution to this has been to install an oversized valve, so that the port area will effectively be 100% of pipe inside flow area. However, this has the disadvantage that the oversized valve is heavy, expensive, and may require a larger actuator which may also be more expensive, as opposed to a more compact unit. Further, the oversized valves will be made with the smaller flange but will have an increased face to face area. This reduces interchangeability of the valves.
- Another disadvantage of the known plug valves is that where they are installed in sludge or slurry service, the intersection of the cylindrically body wall with a point of a flat flange can sometimes form a partial wedge shaped dam that allows sediment and other debris to accumulate in the lower section of the valve as noted above.
- Accordingly, it would be desirable to have an improved plug valve with cylindrical seating that can at least to some degree enhance fluid flow and/or ameliorate the buildup effects of suspended solids use.
- The foregoing needs are met, to a great extent, by the present invention, wherein in one aspect an apparatus is provided that in some embodiments provides an improved plug valve with cylindrical seating that can at least to some degree enhance fluid flow and/or ameliorate the effect of suspended solids use.
- In one aspect, some embodiments of the invention provide a valve apparatus, comprising, a valve body having an inlet port and an outlet port having a seat opening; and a plug rotatably mounted in the valve body and having a cylindrically curved sealing face and a substantially planar second face opposite to the curved sealing face.
- In one aspect, some embodiments of the invention provide a valve apparatus, comprising, a valve body having an inlet port and an outlet port having a seat opening; and a plug valve rotatably mounted in the valve's body having a cylindrically curved sealing face wherein the inlet part comprises an entry region having a change in outline shape but no change in total area.
- In one aspect, some embodiments of the invention provide valve apparatus, comprising, housing means having an inlet port and an outlet port having a seat opening; and sealing means rotatably mounted in the housing means having a cylindrically curved sealing face and a substantially planar second face opposite to the curved sealing face.
- In one aspect, some embodiments of the invention provide a valve apparatus, comprising, housing means having an inlet port and an outlet port having a seat opening; and sealing means mounted in the housing means having a cylindrically curved sealing face, wherein the inlet part comprises an entry region having a change in outline shape but no change in total area.
- In one aspect, some embodiments of the invention provide a method of improving flow is a valve assembly housing a valve body having an inlet port and an outlet port having a seat opening, comprising, rotating a plug mounted in the valve body having a cylindrically curved sealing face and a substantially planar second face opposite to the curved sealing face, wherein the plug is moveable between an open position and a closed position, so that in the open position the second face of the plug is aligned with a vertical corner surface located towards the inlet port and a substantially vertical seat edge located towards the outlet port.
- There has thus been outlined, rather broadly, certain embodiments of the invention in order that the detailed description thereof herein maybe better understood, and in order that the present contribution to the art may be better appreciated. There are, of course, additional embodiments of the invention that will be described below and which will form the subject matter of the claims appended hereto.
- In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of embodiments in addition to those described and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein, as well as the abstract, are for the purpose of description and should not be regarded as limiting.
- As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
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FIG. 1 is a cross-sectional view of a plug valve according to a preferred embodiment of the invention, taken through line 1-1 inFIG. 2 . -
FIG. 2 is a top view of a plug valve according to a preferred embodiment of the invention. -
FIG. 3 is a side view of a valve plug used in the embodiment ofFIG. 1 . -
FIG. 4 is a cross-sectional view taking through line 4-4 inFIG. 3 . -
FIG. 5 is a cut away perspective view of an embodiment of the plug valve. -
FIG. 6 is a cut away top view of the valve ofFIG. 5 shown in an open position -
FIG. 7 is a cut away top view of the valve ofFIG. 5 shown in a closed position. -
FIG. 8 is a perspective view of a valve body used in the embodiment ofFIG. 1 . -
FIG. 9 is a cross-sectional view of the valve body shownFIG. 8 , taken through line 9-9. -
FIG. 10 is a symmetric cross-sectional diagram showing a flow path of fluid through a valve according to a preferred embodiment with the valve in an open position. -
FIG. 11 is a symmetric cross-sectional diagram showing a flow path of fluid through a prior art valve arrangement with this valve in an open position. -
FIG. 12 is a diagram similar toFIG. 10 , but showing the valve installed in a reverse orientation. -
FIG. 13 is a diagram similar toFIG. 11 , but showing the valve installed in a reverse orientation - The present invention in some embodiments provides an improved plug valve and flow control method with cylindrical seating that can at least to some degree enhance fluid flow and/or ameliorate the effect of suspended solids use. A preferred embodiment will now be described with reference to the drawing figures, in which like reference numerals refer to like parts throughout.
-
FIG. 1 illustrates aplug valve 10 according to a preferred embodiment of the invention, including abody 12, abonnet 14, and avalve plug 16. Thevalve plug 16 is rotatably mounted within the chamber formed by thehousing 12 and thebonnet 14 and is moveable between open and closed positions as will be described in more detail below.FIG. 2 is a top view of the arrangement shown inFIG. 1 and further illustrates thehousing 12,bonnet 14 and a shaft portion of thevalve plug 16. - Turning now to
FIGS. 3 and 4 in particular, thevalve plug 16 is illustrated to have theshaft 18, aplug region 20 having aback face 22 and a front sealingface 24, and upper and lower connectingregions lower shaft 30 is also mounted by a bushing for rotation with respect to thebody 12 and theshaft 18 is mounted for rotation with respect to thebonnet 14. Thus, theplug 16 is mounted for rotation about an axis of rotation that is a longitudinal axis throughshafts FIGS. 1-10 show flow in one direction from an inlet to outlet, it will be appreciated that in some installations the orientation of the valve are reversed so that the “inlet” and “outlet” sides are reversed. This type of installation, for example of which is shown inFIG. 12 , is typically intended for installations high in sludge and/or particulates. - Turning to
FIG. 5 , additional features of thevalve plug 16 andbody 12 are illustrated.FIG. 5 illustrates that therear face 22 of thevalve plug 16 has a substantially flat or planar profile as shown, while theouter face 24 has a cylindrical profile shape. Thebody 12 includes aninlet flange 30 and anoutlet flange 32. Theinlet flange 30 leads to an inletflow path area 34 which transitions from acircular opening 36 to a slightly narrower curved side entry transition region leading to arear edge 40, and opposite arranged to a taperedside 41 having a relatively straight verticalcorner inlet edge 42. - When the
valve 10 is in the open position shown inFIG. 5 , theflat surface 22 of thevalve plug 16 is substantially aligned withedge 42. A cylindrical rectangularvalve seat area 44 is provided against which theouter surface 44 of thevalve plug 16 engages when thevalve 10 is in a closed position, as will be described in further detail below. Behind theseat 44, the flow path generally expands due to divergingtapered surfaces 46 leading to the end of theoutlet flange 32. - The
valve 10 is shown in an open position inFIG. 6 . Thebody 14 includes thefront flange 30, and thecurved sidewall 38 leading to arear side edge 40. The other rearvertical side edge 42 is also shown and it is in substantial alignment with therear surface 22 of theplug 16. Also shown is the outer sealingface 24 of theplug 16 and theoverall seat 44, as well as diverging tapered surfaces 46. - It will be appreciated that the generally cylindrical rectangular outline of the
seat 44 has a verticalleft edge 45 that is generally aligned with and does not project beyond the plane formed by the verticalinside surface 24 of theplug 16. Thus,FIG. 6 illustrates a generally planar relationship between thevertical inlet edge 42, thevertical seat edge 45, and the rear or inside face 22 of theplug 28. - As will be discussed in more detail below, it will be appreciated that this provides a smooth and uninterrupted flow boundary along the plane shown in the left side of the flow area of the arrangement of
FIG. 6 . Further, on the regions to the right side ofFIG. 6 , the relatively straightvertical edge 40 and its smooth transition contour at the cylindrical gradualtransition entry region 38 will provide for a fairly straight and wide flow path. -
FIG. 7 shows thevalve 10 in a closed position. Theouter surface 24 of thevalve plug 16 is in contact with theseat 44 to perform the intended shutoff of fluid flow. -
FIGS. 8 and 9 are perspective and cross sectional views of thevalve body 12. InFIG. 8 , inside of theinlet flange 30 can be seen thevertical inlet edge 42 as well as the more roundedextended inlet edge 40 defined by thegradual transition region 38. Near theoutlet flange 32 can be seen the vertical edges of theseat 44 and thetransition region 46. - The cross sectional view of
FIG. 9 further shows on the inlet side, the rectangular cylindrical outline of theseat 44 and itsleft edge 45, as well as thecircular outlet region 46. -
FIG. 10 is a simplified schematic flow diagram which illustrates some of the benefits achieved by various aspects of various embodiments of the present invention. For example, theflat surface 22 of the rear of thevalve plug 16 and its alignment with the verticalflow boundary edge 42 and thevertical edge 45 of theseat 44 provide a smooth fluid flow through thevalves 10. Further, the relatively straightvertical edge 40 and thesmooth entry region 38 also permits an uninterrupted smooth fluid flow at that area. - While it may appear from the cross section of
FIG. 10 that the volumetric flow area at the front inlet face of theflange 30 is larger than the volumetric flow area taken at thevertical edge 40, this does not have to be the case because during the transition from thefront opening 36 to thevertical edge 40, a change in the vertical height the flow cross-sectional area can also be occurring. Therefore, the two dimensional flow area atfront face edge 36 and at thevertical edge 40 can be made the same as each other, and further can be made 100% the inner diameter area of the pipe to which the valve is connected if that is so desired. Also, the two dimensional flow area at theseat 44 can be made equal to the inner diameter area of the pipe -
FIG. 10 also contrasts this particular embodiment of the invention with a prior art arrangement as shown inFIG. 11 . Some differences that are illustrated include, for example, that a constrictingwedge area 70 shown inFIG. 11 is not present inFIG. 10 , which instead shows asmooth entry region 38. Also shown inFIG. 11 is a convexrear surface 72 of the plug, which can undesirably restrict the free flow area compared to the flatrear surface 22 of this embodiment ofFIG. 10 . -
FIG. 12 shows thevalve 10 with the flow direction reversed and in a horizontal position. This installation may be preferred for example in applications high in sludge and/or particulates. It will be seen that thesmooth transition region 38 allows sediment to be carried out and not form a dam as would occur atlocation 99 of the prior art shown inFIG. 13 (wherein the valve ofFIG. 11 installed upside down and backwards). - The many features and advantages of the invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention which fall within the true spirit and scope of the invention. Further, since numerous modifications and variations will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/853,029 US20100301251A1 (en) | 2004-11-22 | 2010-08-09 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/993,437 US7770867B2 (en) | 2004-11-22 | 2004-11-22 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
US12/853,029 US20100301251A1 (en) | 2004-11-22 | 2010-08-09 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/993,437 Continuation US7770867B2 (en) | 2004-11-22 | 2004-11-22 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
Publications (1)
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US20100301251A1 true US20100301251A1 (en) | 2010-12-02 |
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10/993,437 Active 2026-12-18 US7770867B2 (en) | 2004-11-22 | 2004-11-22 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
US12/853,029 Abandoned US20100301251A1 (en) | 2004-11-22 | 2010-08-09 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US10/993,437 Active 2026-12-18 US7770867B2 (en) | 2004-11-22 | 2004-11-22 | Plug valve with flow area equal to or greater than the flow area of the connected piping |
Country Status (8)
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US (2) | US7770867B2 (en) |
EP (1) | EP1815171B1 (en) |
JP (1) | JP5328151B2 (en) |
CN (1) | CN101099059B (en) |
AT (1) | ATE495400T1 (en) |
CA (1) | CA2588788C (en) |
DE (1) | DE602005025914D1 (en) |
WO (1) | WO2006055977A1 (en) |
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DE102008011416A1 (en) * | 2008-02-27 | 2009-09-10 | Continental Automotive Gmbh | Turbocharger with an actuator for opening and closing a wastegate duct |
US20100127022A1 (en) * | 2008-11-21 | 2010-05-27 | Symyx Technologies, Inc. | Dispensing valve |
DE102009049867A1 (en) * | 2009-10-20 | 2011-04-21 | Mahle International Gmbh | valve means |
JP5914176B2 (en) * | 2012-05-31 | 2016-05-11 | 株式会社ミクニ | Rotary valve |
CN108291479A (en) * | 2015-11-20 | 2018-07-17 | 日产自动车株式会社 | The inlet duct of internal combustion engine |
CN105947608A (en) * | 2016-07-19 | 2016-09-21 | 鹤壁市煤化机械有限责任公司 | Drum-type sealing gate which has rotating amount adjustment function and is used for activation feeder |
JP6057448B1 (en) * | 2016-08-05 | 2017-01-11 | ダイヤモンドエンジニアリング株式会社 | Flow control valve |
CN107237912A (en) * | 2017-07-26 | 2017-10-10 | 荆门美中美阀门有限公司 | A kind of plug valve for being used to handle mud |
CN107269906A (en) * | 2017-07-26 | 2017-10-20 | 荆门美中美阀门有限公司 | A kind of cock valve body for being used to handle mud |
JP7132791B2 (en) * | 2018-08-17 | 2022-09-07 | 株式会社栗本鐵工所 | Eccentric rotary valve |
US10808850B2 (en) * | 2018-10-23 | 2020-10-20 | Mueller International, Llc | Pressure energized seat for plug valve |
CN112253781A (en) * | 2020-10-10 | 2021-01-22 | 特尔阀门高科技有限公司 | Multi-eccentric rotary valve |
US11959562B1 (en) | 2023-01-12 | 2024-04-16 | Dresser, Llc | Valve plug |
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US1844046A (en) * | 1931-03-05 | 1932-02-09 | George W Sheets | Valve |
US3379408A (en) * | 1965-02-08 | 1968-04-23 | Acf Ind Inc | Eccentric plug valve |
US3627258A (en) * | 1968-09-30 | 1971-12-14 | Domer Scaramucci | Plug-type valve assembly |
US3749358A (en) * | 1971-04-01 | 1973-07-31 | C Bates | Valve having adjustable seating means |
US3963211A (en) * | 1974-10-23 | 1976-06-15 | Honeywell Inc. | Rotary valve |
US4073473A (en) * | 1974-11-11 | 1978-02-14 | Honeywell G.M.B.H. | Rotary valve |
US4260129A (en) * | 1978-05-26 | 1981-04-07 | Honeywell Inc. | Rotary spherical plug valve |
US4399976A (en) * | 1980-01-03 | 1983-08-23 | Legris Sa | Valves with lenticular or spherical closing member |
US4863144A (en) * | 1988-10-19 | 1989-09-05 | Amsted Industries Incorporated | Plug valve |
US4989833A (en) * | 1988-12-30 | 1991-02-05 | Neles Oy | Method for changing the characteristic curve of a regulation valve under pressure and a regulation valve |
US5170992A (en) * | 1988-04-21 | 1992-12-15 | Tour & Andersson Ab | Stop valve |
US5186433A (en) * | 1992-01-21 | 1993-02-16 | General Resource Corporation | Adjustable eccentric valve |
US5264138A (en) * | 1989-07-06 | 1993-11-23 | A. Ahlstrom Corporation | Method and apparatus for treating a fiber suspension |
US5374031A (en) * | 1992-08-21 | 1994-12-20 | Solex | Butterfly-valve assembly having an admission passage of progressively-changing shape, and method of manufacturing same |
US5642751A (en) * | 1995-09-14 | 1997-07-01 | Crawley; Michael F. | Valve assembly |
US6138988A (en) * | 1997-04-18 | 2000-10-31 | M.G.I. Coutier S.A. | Butterfly valve for regulating a fluid flow |
US7255134B2 (en) * | 2002-07-23 | 2007-08-14 | Lubrizol Advanced Materials, Inc. | Carbon black-containing crosslinked polyethylene pipe having resistance to chlorine and hypochlorous acid |
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JPS6152469A (en) * | 1984-08-22 | 1986-03-15 | Tomoe Gijutsu Kenkyusho:Kk | Small butterfly valve |
JPH0256978U (en) * | 1988-02-02 | 1990-04-24 | ||
FR2712953B1 (en) * | 1993-11-24 | 1996-01-12 | Helverep Sa | Butterfly type control valve. |
CN2277470Y (en) * | 1996-06-11 | 1998-04-01 | 刘光裕 | Valve |
CN2289916Y (en) * | 1997-01-09 | 1998-09-02 | 武汉市亚美蝶阀厂 | Stop cock |
FI982109A0 (en) * | 1998-09-30 | 1998-09-30 | Tasowheel Oy | Valve |
FR2804740B1 (en) * | 2000-02-09 | 2002-08-02 | Mecaplast Sam | SHUTTERING SYSTEM FOR FLUID PIPING |
CN2442049Y (en) * | 2000-10-17 | 2001-08-08 | 浙江良精阀门集团有限公司 | Accentric stop cock |
DE20104883U1 (en) * | 2001-03-21 | 2001-06-28 | Braun, Günter, 57462 Olpe | Shut-off device in fittings |
CN1255637C (en) | 2003-08-26 | 2006-05-10 | 湖北锦华阀门制造有限公司 | Dual eccentric spherical cock |
-
2004
- 2004-11-22 US US10/993,437 patent/US7770867B2/en active Active
-
2005
- 2005-11-22 WO PCT/US2005/042625 patent/WO2006055977A1/en active Application Filing
- 2005-11-22 CA CA2588788A patent/CA2588788C/en active Active
- 2005-11-22 CN CN2005800460061A patent/CN101099059B/en active Active
- 2005-11-22 AT AT05852136T patent/ATE495400T1/en not_active IP Right Cessation
- 2005-11-22 JP JP2007543496A patent/JP5328151B2/en active Active
- 2005-11-22 EP EP05852136A patent/EP1815171B1/en not_active Not-in-force
- 2005-11-22 DE DE602005025914T patent/DE602005025914D1/en active Active
-
2010
- 2010-08-09 US US12/853,029 patent/US20100301251A1/en not_active Abandoned
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US548013A (en) * | 1895-10-15 | Charles s | ||
US1844046A (en) * | 1931-03-05 | 1932-02-09 | George W Sheets | Valve |
US3379408A (en) * | 1965-02-08 | 1968-04-23 | Acf Ind Inc | Eccentric plug valve |
US3627258A (en) * | 1968-09-30 | 1971-12-14 | Domer Scaramucci | Plug-type valve assembly |
US3749358A (en) * | 1971-04-01 | 1973-07-31 | C Bates | Valve having adjustable seating means |
US3963211A (en) * | 1974-10-23 | 1976-06-15 | Honeywell Inc. | Rotary valve |
US4073473A (en) * | 1974-11-11 | 1978-02-14 | Honeywell G.M.B.H. | Rotary valve |
US4260129A (en) * | 1978-05-26 | 1981-04-07 | Honeywell Inc. | Rotary spherical plug valve |
US4399976A (en) * | 1980-01-03 | 1983-08-23 | Legris Sa | Valves with lenticular or spherical closing member |
US5170992A (en) * | 1988-04-21 | 1992-12-15 | Tour & Andersson Ab | Stop valve |
US4863144A (en) * | 1988-10-19 | 1989-09-05 | Amsted Industries Incorporated | Plug valve |
US4989833A (en) * | 1988-12-30 | 1991-02-05 | Neles Oy | Method for changing the characteristic curve of a regulation valve under pressure and a regulation valve |
US5264138A (en) * | 1989-07-06 | 1993-11-23 | A. Ahlstrom Corporation | Method and apparatus for treating a fiber suspension |
US5186433A (en) * | 1992-01-21 | 1993-02-16 | General Resource Corporation | Adjustable eccentric valve |
US5374031A (en) * | 1992-08-21 | 1994-12-20 | Solex | Butterfly-valve assembly having an admission passage of progressively-changing shape, and method of manufacturing same |
US5642751A (en) * | 1995-09-14 | 1997-07-01 | Crawley; Michael F. | Valve assembly |
US6138988A (en) * | 1997-04-18 | 2000-10-31 | M.G.I. Coutier S.A. | Butterfly valve for regulating a fluid flow |
US7255134B2 (en) * | 2002-07-23 | 2007-08-14 | Lubrizol Advanced Materials, Inc. | Carbon black-containing crosslinked polyethylene pipe having resistance to chlorine and hypochlorous acid |
Also Published As
Publication number | Publication date |
---|---|
EP1815171B1 (en) | 2011-01-12 |
CA2588788C (en) | 2013-06-25 |
CN101099059A (en) | 2008-01-02 |
ATE495400T1 (en) | 2011-01-15 |
US7770867B2 (en) | 2010-08-10 |
CA2588788A1 (en) | 2006-05-26 |
CN101099059B (en) | 2012-08-08 |
JP5328151B2 (en) | 2013-10-30 |
US20060108557A1 (en) | 2006-05-25 |
EP1815171A1 (en) | 2007-08-08 |
DE602005025914D1 (en) | 2011-02-24 |
WO2006055977A1 (en) | 2006-05-26 |
JP2008520937A (en) | 2008-06-19 |
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