WO2006046942A1 - Integrated multipurpose caged valve - Google Patents
Integrated multipurpose caged valve Download PDFInfo
- Publication number
- WO2006046942A1 WO2006046942A1 PCT/US2004/034869 US2004034869W WO2006046942A1 WO 2006046942 A1 WO2006046942 A1 WO 2006046942A1 US 2004034869 W US2004034869 W US 2004034869W WO 2006046942 A1 WO2006046942 A1 WO 2006046942A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve
- cage
- shut
- fluid
- cylindrical
- Prior art date
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Classifications
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/12—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit with one plug turning in another
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
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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
- F16K5/08—Details
- F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
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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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
Definitions
- the invention is in the field of flow control and. pressure reducing valves, check valves, gates and shutoff valves to control fluid flow in piping systems.
- valves are produced as single units, with each valve designed to perform a limited and specific function.
- a pressure reducing valve can perform more than one function, but still it is a single valve.
- the pressure reducing valve requires two auxiliary valves; one at the inlet and other at the outlet to isolate it from the fluid when any internal part needs to be changed.
- shut off valves like butterfly valves or a ball valves, require maintenance, they are taken out of the line entirely. The same is true for many other types of valves.
- Valves which are used to control corrosive fluids require frequent maintenance. In the case of fixed flanged valves, it becomes difficult and time consuming to remove the valve from the line and to put it back.
- variable pressure and temperature conditions coupled with the movement of the pipe itself when the valve is pulled out of the line, can .bring about a change in the space which the valve occupied before its removal.
- space which the valve occupied before its removal.
- GROVE VALVES REGULATORS AND FLOW CONTROL SYSTEMS supplies a sleeve valve in a cage which is removable from the cage.
- the cage is made of cross bolts holding the opposite two flanges of the cage together, which are attached to the ends of two pipes. Half of the cross bolts of the cage are removed before the entire valve body is removed from the cage. Then, the elastomeric sleeve is freed from the valve and the metallic sleeve, so that it can be replaced with a new elastomeric sleeve.
- GROVE VALVES also require two extra shutoff valves at the inlet and at the outlet sides of the valve. Large size valves are heavy, and removing them from the pipe line requires special equipment. It is much easier to take the light-weight component out of the cage than to take the whole valve unit out.
- shn ⁇ toff valves are operated at very slow speed.
- valves of 8 inch size and larger take quite a bit of the operator's time.
- Tisually two men are sent to turn off the shutoff valve, because it takes time and energy to turn them off.
- their travel ti_me plus twenty minutes to turn off the valve poses a serious problem.
- a valve wb-i ⁇ h can be turned off quickly, in the snortest possible time has great economic merit.
- the invented integrated multipurpose caged valve which has a wider range of applications and economic merit, is a compact valve, having features that allows it to be a sh.Tj.toff valve, to isolate its own inner replaceable components, which are valves themselves.
- Said inner replaceable valves can be pressure reducing valves or pressure relief valves or check valves or auxiliary shut of valves.
- the new invention consolidates valves as components in a single valve unit by integrating them in a cage.
- Said cage is kept permanently in the pipe line by means of connectors such as pipe flanges tied together with bolts and nuts, or pipe couplings.
- the cage can alternatively be kept permanently in line by welding the two ends of fclie cage to the two opposite pipes in the pipe line.
- valve major valve components
- degree is a step ⁇ n the order of the component's assemblage in the valve unit.
- minor components i.e. any actuators, needle valves, control pilot valves, or secondary seals, are not assigned any degree under this classification.
- the integration of all of the components constitutes the entire valve body.
- the entire valve body will be referred to as "valve”.
- the first degree component is the cage itself, and it is installed permanently in the pipe line by connecting its two opposite piped ends to the ends of the two pipes being connected.
- the cage also has a inner cavity to receive other major components of the valve. From here on the cage will be referred to as “cage” only, and the inner cavity will be referred to as “inner cavity” or “inner cavity of the cage”.
- the second degree component is a primary seal (including at least two tieing sealing bolts) , which is an elastomeric pipe (or tube) tubular seal, and it has two opposite openings and is situated between two matching openings, one in the inner cavity of the cage, and an other opening in ttie wall of cylindrical shut off valve. From here the elastomeric pipe tube seal will be referred to as the "primary seal" or tubular seal.
- the third degree component is a rotatable cylindrical shut off valve, which has at least two openings that match and correspond to said two openings of the elastomeric tube seal.
- the shut off valve also provides a preferably flat seat or two opposite flat seats concentric to its axis for an elastomeric diaphragm or two opposite diaphragms resembling the shape of a big hat.
- the cylindrical valve will be referred as the "shut off valve”.
- the fourth degree component is an elastomeric diaphragm (or diaphragms) , for the diaphragm valve, which resembles a big hat.
- the elastomeric diaphragm functions as a pressure reducing valve, a pressure relief valve, and a check valve.
- the elastomeric diaphragm will be referred as the "diaphragm" .
- wlxich can be pressure reducing and shut off valves.
- the fifth degree component is a valve drive which has a sfciaft to rotate the third degree component, which is the cylindrical shutoff valve.
- a sixth degree component constitutes one or two cover plates wfctich are held to the valve by means of bolts or by means of camming jaws, which are invented by the inventor under U.S. Patent Numbers 5,387,017 and 5,868,441 to close the inner cavity off the cage which accommodates the inner components from the second degree to the fifth degree.
- the valve W-LIl mostly be described by the terms: valve, cage, inner cavity, primary (tubular) seal, shut off valve,, diaphragm or diaphragms, pi.ston or pistons, valve drive, and cover plate or cover plates.
- the Integrated Multipurpose Caged Valve has a valve body which incZLudes a cage for enclosure, to hold in place, and to enclose, separable integrated valve components.
- the centrally located inner cavity in the cage constitutes a circular tubular cavity designed to receive and to hold in place, major components of the second degree to the fifth degree.
- the cage On opposite sides, the cage has two pipe pieces extending concentric to its longitudinal horizontal axis. Said two pipe pieces are provided with connecting means in their end portions which are used to connect the two ends of two opposite pd-pes.
- the means to connect the cage to the pipes can be flLanges, grooves or threads, or rotatable camming jaws couplings invented by the inventor under the above cited U.S. Patent Serial Numbers 5,387,017 and 5,868,441.
- the valve from its components, can be assembled in the shop or at the site.
- the valve can be manufactured by casting, machining, fabricating or any combination of the above.
- the valve can be manufactured from different types of metals or plastics or from any combination of both materials.
- the inner cavity of the cage opens at least on its one end to receive major valve components of second to fifth degrees.
- the inner cavity can be open ended on both of its ends.
- either one or two cover plates are provided to close the inner cavity, depending on whether one or- two ends of the inner cavity are open.
- the axis of the shut off valve and the elastomeric diaphragm or diaphragms which the shut off valve accommodates coincide with the vertical axis of the inner cavity of the cage, and a common plane of these coincided axes intersect vertically with the longitudinal horizontal axis of the cage, thus dividing the valve into two equal symmetrica.1 sections.
- the inner ⁇ avity of the cage is provided with a cover plate or plates which are held in place to the cage by means of bolts.
- the covers can also be held in place by means of rotatable camming jaws invented by the inventor under above cited U.S. Patent Serial Numbers 5,387,017 and 5,868,441.
- the cylindrical shut off valve along with the hat shaped elastomeric diaphragm or diaphragms, is rotatable inside the inner cavity of the cage.
- the inner space of the cylindrical shut off valve between two elastomeric diaphragms is vertically partitioned into two equal halves b>y means of a partitioning plate or partitioning pipe. In the first case, this plate is made integral with the cylindrical wall of the shut off valve.
- said inner space is partitioned by a pipe integrally held in place by means of two running flanges, with one flange on one side of said pipe and the other flange on the opposite side of said pipe (which fflanges may be constructed as left over sections of the said partitioning plate after removing a central portion of said plate to fit the diameter of said pipe. with said pipe welded to said flanges) where said flanges are integrally connected to the cylindrical wall of, and to the two seats of, the shut off valve.
- any other openings of different geometry such as, square, xrectangular or oval are equally contemplated.
- the cylindrical wall of the shutoff valve is provided with two opposite openings which match, in size, with the two opposite openings of the cage and with the two opposite openings of the primary seal.
- four openings are provided in said wall, where two openings are provided by the inlet and outlet openings of the partitioning pipe. These four openings are located circumferentially at 90 degrees apart .
- shut off valve can be rotated 90 degrees to block the fluid from entering the shut off valve while allowing fluid flow through the partitioning pipe, and therefore still allowing fluid flow through the pipe line. It is clear that when two valves are put in series, the diaphragms of either shut of valve can be changed, and the flow can be maintained through the pipe line, and it is also clear that no bypass will be needed. This elimination of the need for a bypass results in the elimination of the requirement fo ⁇ r the extra space that parallel bypass configurations require.
- Means such as wedge bearings, roller bearings, ball bearings, or bolt bearings are provided to keep the shut-off valve rotatably locked inside the inner cavity of the cage, and means are also provided to limit and .restrict the rotation of the shut off valve beyond a certain point .
- Wedge and bolt bearings will be explained under the description of the drawings. It is pointed out here that in certain applications said bearings may not be needed.
- the cylindrical shut off -valve with a diaphragm or diaphragms can also be modified to accommodate a piston, or two opposite pistons, by providing a second concentric cylinder within its inner cylindrical space. The shut off valve and the said second concentric cylindezr are connected by means of a reducing pipe.
- Said second concentric cylinder can be cast integrally with the shut off valve and with the seats provided by the shut off valve for the diaphragms, or it can be fabricated by welding a cylinder after excavating said seats.
- Each piston is axially moveable between the seat and the flat cover plate, and each said piston is connected to its corresponding said seat by means of barbs or stems of bolts, with a loose slidable fit, which seat is an integral part of the cylindrical valve.
- Said two opposite pistons are mounted on a common shaft. By means of said shaft the shut off valve can be rotated to close or to open multiple openings in the body of the cage.
- the invented shut off valve in a cage also can accommodate piston valves to control fluid as pressure reducing valves, and the shut of valve can close or open fluid flow to multiple openings in the body of the cage.
- the diaphragm valve can function as a pressure reducing or a pressure relief valve.
- the diaphragm valve functions as a shut-off valve, and simultaneously acts as a pressure relief valve to damp out any surge creating water hammer.
- the surge is relieved not by removing liquid from the line, but by keeping the flu ⁇ d in the pipe line, thus requiring no outer place to which the liquid is disposed off, as is the current conventional approach..
- FIG. 1 is an axial -vertical section of the cage, where said cage is the first degree component, and where the inner cylindrical cavity of the cage is provided with one opening on top, and it also shows a primary seal.
- FIG. 2 is an axial -vertical section of the cage, where said cage is the first degree component, and where the inner cylindrical cavity of the cage is provided with two openings; one on top and one on bottom.
- FIG. 3 is a vertical section of the third degree to sixth degree components of the 'valve, which include a cylindrical shut off valve, diaphragm, drive and the flat cover plate.
- JFIG. 4 is an axial -vertical section through the center of the valve, where the cylindrical shut off valve provides two seats to two diaphragms. It shows the assemblage of FIG. 1 and FIG. 3.
- FIG. 5 is similar to FIG. 4, but the cylindrical shut off valve is provided with four openings in its cylindrical body, where two openings are provided by partitioning pipe integrated with the cylindrical wall of the shut off valve.
- FIG. 6 is a transverse vertical section taken along- the line 1-1 shown in FIG. 4.
- FIG. 7 is a horizontal transverse section taken along the line 3-3 shown in FIG. 4.
- FIG. 8 is similar to FIG. 4, where the cage is provided with a reducer pipe inlet and outlet, and a reducer type of elastomeric gasket seal in relationship to the cylindrical wall of the shut off valve is shown.
- FIG. 9 is a horizontal transverse section taken along line 2-2 in FIG. 6, depicting a. locking wedge bearing, and the valve drive.
- FIG. 10/ is similar to FIG. 4, but shows step up cover means to rotate the cylindrical shut off valve, and different means to tie the diaphragms to their seats. It also shows bolt bearings, and a different type of gasket seal.
- FIG. 11 is similar to FIG. 10, but two opposite cover plates differ from one another in design.
- FIG. 12 is an axial vertical section through the center of the valve similar to FIG. 4, where the cylindrical shut-off valve is provided with an inner open ended concentric cylinder, and they are connected by means of a reducer pipe and two opposite seats of the shut off valve.
- the shut-off valve controls four way fluid flow.
- FIG. 13 is a horizontal transverse section taken along l ⁇ ne 4-4 in FIG. 12, depicting four way flow.
- FIG. 14 is an axial -vertical section through the center of the valve similar to FIG. 12, where the shut-off valve is provided with pistons, instead of diaphragms to control the fluid flow.
- FIG. 15 is the horizontal transverse section taken along the line 5-5 in FIG. 14.
- FIG. 16 is an axial -vertical section of the open ended cylindrical cage, the first degree component, where said cylindrical cage is directly welded to the inlet and outlet pipes of the pipe line, and integral inlet and outlet pipes of the cage are entirely removed.
- FIG. 17 is an axial vertical section through the center of the valve, and it is the same FIG. as FIG. 4, but is shown with ⁇ two threaded covers.
- the first degree component is the cage 1 in FIGS - 1 and 2 for the valve, and it is assigned lower case numeral 1 subscripted by lower case letters.
- the inlet and outlet pipe portions of the cage are lettered in upper casing A and B respectively, subscripted by numerals.
- the second degree component is a primary seal Ij? shown in FIGS. 1 and 2, and all other seal are assigned numeral 5 subscripted by letters.
- the third degree component is the cylindrical shut off valve and it is assigned numeral 2 (shown in FIG. 3) and subscripted by upper case letters.
- the hat shaped diaphragm and its surroundings aare assigned upper casing numeral 4 ( shown in FIG. 3) subscripted by letters.
- Valve drives are assigned upper casing C (shown d.n FIG. 3) subscripted by numerals; and lower case letters.
- valve cover for the cage is assigned numeral 3 ( shown in FIG. 3) subscripted fay letters.
- FIG. 1 shows cage 1 having inner cylindrical cavity Ih contained by the cylindrical -wall Ia.
- the inner cavity Ih has receiving opening Id, which is encircled by seal 5d.
- the inner face Ib of wall Ia is provided with a cylindrical groove Ip.
- a pipe tubular gasket seal 5p is shown mounted in groove Ip.
- the inner portion of cylindrical cavity Ih lies below the innear diameters of pipes Al and. Bl.
- the cylindrical cavity Ih is provided with two opposite openings yl and y2. Additionally, the space of the inner cavity Ih is enlarged by the space of inlet chamber A and outlet chamber B.
- Said chambers A and B are provided by the enclosure of the inlet piece of pipe Al and outlet piece of pipe Bl, which pieces of pipes extend from the cylindrical wall Ia.
- A8 and B8 Two flanges to attach the cage to the inlet and outlet pipes of the pipe line are shown by A8 and B8, where said inlet and outlet pipes are not shown.
- the outer face of wall Ia is shown by Ic.
- the outer and inner diameters of l?ipe Al are shown by A2 and A3.
- the outer and inner diameters of ⁇ >ipe Bl are shown by B2 and B3.
- the openings for bolts to tie flanges to the flanges of inlet and outlet pipes are shown by A6 and B6 respectively.
- Outer portions of wall Ia are indicated by Hy and Iw and their outer cylindrical surface is shown by Iq.
- the integral dead end plate of cavity Ih is depicted by Ie.
- FIG. 2 is the same as FIG. 1 except that cavity Ih opens on both ends. Instead of one cover plate as in FIG. 1, two cover plates will be needed to cover the end openings of cavity ILh.
- the bottom cover plate is shown by IE.
- FIG. 2 shows beveled ends A8 and B9, which axe welded to the inlet and outlet pipes.
- the cage can be attached to inlet and outlet pipes by means of threaded couplings or any groove coupling.
- FIG. 3 shows the in-vented integrated shut off valve 2 , which is integrated with the elastomeric diaphragms Dl and D2.
- Diaphragms Dl and D2 are collectively identified as D.
- Diaphragms Dl and D2 are equal in size and have common geometry.
- the cylindrical wall 2B of shut off valve 2 has an inner body between integral circular- flat plates 2E and El, which plates are parallel to the axis of the valve.
- the inner body is partitioned into two equal parts oy partitioning means partitioning pILate 2A.
- Two inner plates 2E and El are provided with inlet openings 2L and E2 on the inlet side of the valve, and outlet openings 2M and E3 on the outlet side of the valve.
- the cylindrical wall 2B extends on both sides of the flat plates 2E and El, where the opposite extensions of wall 2B beyond plates 2E and El are designated by 2y and 2R. These walls may have the same continuous geometry of wall 2B or they may be different ii ⁇ geometry from wall 2B, as shown by inward forwarding incli_nes C4 and C15. The inclines C4 and C15 are of the same degree though they are designated by assigning different numerals.
- the opposite outer ends of outer cylindrical walls 2Y and 2R are depicted by 2P and 2X- Two intermitting circumferential grooves in walls 2Y and 2R are shown by 6d and 6k for the mounting of wedge and bolt bearing-s. Secondary seals are depicted by 5c, 5d and 5L.
- the wall 2B ⁇ s provided with two opposite openings Zl and Z2.
- cylindrical walls 2Y and 2R create two open ended cavities C of equal depth.
- they are mounted into said cavities C.
- their ⁇ ircumferetial ends snown by 4B are tucked into the corresponding circumferential groove 2h, though a 45 degree angle of the incline is equally effective to hold the end 4B in place.
- Said flat seats 2 ⁇ and El may be departed from their flatness .
- Circular plates 2E and El may be provided with slight circular forward tapering, outward away from the center of the valve, and toward the axis of the cylinder 2B, or they may be provided circular forward tapering inward toward the center of the valve, and toward the axis of cylinder 2B. Whether the plate 2E and El are flat or tapered, the flatness and tapering of the portion of the diaphragms between 4B and 4C will be adjusted accordingly by providing a slightly different taper to the diaphragms so that said portions between 4B and 4C have a snug fit.
- diaphragm Al and A2 divides each ca-vity C into two cavities Cl and C2 around the diaphragm.
- the monolithic drive to rotate the shut off valve 2 is shown by a shaft C7, hub pedestal disk C9, spokes arm C5, rim CIl and projected locIking fingers C6 from CIl into intermitting plurality of grooves and bushing seal C8.
- the circular cover plate for the valve is shown by 3, with outer diametrical length 3A to 3B, and with circular opening 3G for the shaft C7.
- the plurality of bolts to tie the cover plate to the cage 1 are indicated by 3K.
- the openings to charge the diaphragms with fluid to control the fluid flow in the pipe line are shown by 3D and 3E .
- Fig. 4 depicts the invented valve, which is the asseitilblage of components shown in. FIG. 1 and FIG. 3. With the aid of FIG. 4 all other FIGS, can be studied together.
- the cage is depicted by
- Pipe Al provides the inlet (from the pipe not shown) to the valve, and it has connector flange A.8 with outer diameter A5 and bolt openings A6.
- Pipe Bl provides the outlet from the valve (to the pipe not shown) and has flange B8 with outer diameter B5 and bolt openings B6.
- the cylindrical wall of the inner cavity (between seats 2E and El) of the cage is depicted by Ia and its inner and o ⁇ ter surfaces are shown by Ib and Ic.
- the cylindrical wall Ia lia s two opposite openings yl and y2.
- a groove Ip In the inner side Ib of Ia is constructed a groove Ip to accommodate a pipe tubular printary seal 5p.
- the elastomeric primary seal 5p is depicted in FIGS. 1,
- Two opposite openings y5 and y6 are constructed in seal 5p, which match the openings yl and y2. Once y5 arxd ⁇ 6 are matched with the openings yl and y2 then at least a set of two bolts 5Z (Shown in FIG. 6) are mounted into openings NL and N2 (also shown in FIG. 7) of the primary seal 5p.
- the sections of 5p around open ⁇ ngs y5 and y6 are slightly, (plus or mirnxs two thousandth of a inch) thicker than the rest of the tubular primary seal.
- Hydraulically balanced, cylindrical shut off valve 2 l ⁇ .as wall 2B which has two circular plates shown by E2 and El located inside the cylinder 2B, a distance away from its two open ends 2P and 2X.
- the plates El and 2 ⁇ have an integral vertical partitioning means partitioning plate 2A which divides the shut off valve 2 into two equal symmetric parts.
- the outer and inner surfaces of flat plate 2E are indicated by E7 and E6.
- the outer and inner surfaces of flat plate El are shown by E5 and E4_
- the plate 2 ⁇ has inlet and outlet opening means for the fluid passage shown by 2L and 2M for the entrance and exit of the fluid which the actuated diaphragm Dl controls.
- Plate El has inlet ancl outlet opening means for the fluid passage shown by E2 and E3 for the entrance and exit of the fluid which the actuated diaphiragm D2 controls.
- the geometric design of the openings 2L, E2, and of 2M and E3, in the flat plates 2E and ⁇ 2, can be varied to suit the requirement of the valve.
- the rotatable cylindrical shut off valve 2 is held in the cage by locking means, which means can be ball bearings, roller bearings, bolt bearings or wedge bearings. In some applications locking bearing means may not be needed and the shut off valve can be rotated without any bearings. Wedge and bolt bearings are preferred, because wedge and bolt bearings can also be used to limit the rotation, to a pre-specified amount of rotation. To limit the rotation, of shaft C7, restricting elements can be mounted outside on cover 3.
- the wedge bearings and bolt bearings can be used in combination or the wedge bearings can t>e used on one end of the valve while the bolt bearing is used on the other end of the valve.
- the circumferetial grooves provided in outer surface 2C of walls 2Y or 2R are intermittent grooves of specified lengths.
- the method and the means to tie the shut off valve to the cage - will be explained with the aid of FZGS. 4,6 and 9 simultaneously.
- the plurality of aright angle wedge bearing ties depicted by 6a are mounted through the wall Iy of the cage through the corresponding grooves 6e and into the corresponding circ-umferential groove 6d in 2C of wall 2Y.
- the end 6f of the vertical leg 6h is held in place inside of corresponding circular groove 6c constructed in the cover plate 3, and the end section 6b of horizontal leg 6g is kept in place in groove 6d.
- vertical leg 6h of the wedge is kept outside of the outer surface Iq of the cage, and it is tied to wall Iy or Iw by providing leg 6h with a central opening to pass a bolt k, shown in. FIG. 9, to screw it to the wall Iy or wall Iw.
- leg 6h of saici inverted wedge (with longer leg 6g) will remain outside fche wall Iy or Iw, and, though the opening for leg 6g in walls Iy and 2y, and also in walls Iw and 2R, will still be needed, groove 6e will not be needed. Said inverted wedge bearings are not shown.
- FIG. 6 For bolt bearings, shown in FIG. 6, are bolts 6N with seal 6P. The ends of the plurality of bolts are inserted into intermittent grooves 6k in wall 2R. Bolts 6N are mounted through the openings 6M in. wall Ia. At least one or two restrictions in groove 6k are provided to limit the rotation of the shut off valve.
- the restricting elements in groove 6d and 6k can be synchronized with any other restricting elements provided elsewhere in the valve for the same purpose, to limit the rotation of the shut off valve.
- the shut off valve of t-fciis invention is shown, as a quarter turn valve, therefore, at 90 degrees, at least one or two restrictions in the groove 6k are provided beyond wh.ich the valve cannot be rotated. It is pointed out here that the shut of valve can be other than a quarter turn valve.
- Two elastomeric diaphragms Dl and D2, each resembling a hat, are mounted over surfaces E7 and E5 of circular flat plates 2E and El. Since Dl and D2 are the same diaphragms of the same size, the same numbers are used to describe the diaphragms and the cavities around them.
- the central portion of the diaphragm shows hump 4A in Its cross section, and its flat circulate portion is shown by 4. Th.e outer diameter of the diaphragm is indicated by 4B.
- the outer portion of the diaphragm near its frixige is indicated by 4F.
- diaphragm portion 4 betweexi 4B and 4C is constructed by tapering slightly toward 4C to assuzre its contact with the seat on which it is mounted.
- the diapharagm divides the space of cavity C into two sections; space C2 around the hump 4A, and the space Cl under the hump 4A.
- the ciircular portion 4 of the diaphragms between 4B and 4C covers opesaings 2L, 2M, and ⁇ 2 and E3 on both sides of the partitioning pla-te 2A.
- the top cavity C for diaphragm Dl is defined by the space enclosed by the cover plate 3, circular wall 2y, and flat plate 2E.
- the top cavity C for diapliragm D2 is defined by the space enclosed by circular wall 2R, flat plate El, and flat end p]_at Ie.
- the walls 2y and 2R incline forward toward the center of the shut off valve which is depicted by C4 and C15.
- the end portion 4F (with outer encl 4B) of diaphragms are tucked in the corresponding groove provided in the walls 2y and 2R.
- the length of the groove and the extent of 4F tucked into that groove depends on the size of the valve.
- FIGS. 10 to 13 where walls 2Y and 2R are not provided an incline, the end portion of each diaphragm is tied by means of ring 4D and bolts 4G.
- Tlie valve drive has a shaft C7 passing through opening 3G of cover plate 3.
- the shaft C7 is connected to the wall 2B of the shut off valve 2 through the intermediate integral radial means of pedestal C9, spoke bars C5, rim CIl, and the end connector locking means C6.
- the disk pedestal C9 presses against hump 4A of the diaphragm Dl and compresses the diaphragm Dl against seat ⁇ 7 when, the cover plate 3 is bolted down to the wall Iy. From the rim CIl, protruded fingers C6 are inserted into corresponding 1 holes in wall 2y.
- Bush ⁇ ng seal C8 is provided to block the exit of the fluid flow. An extra seal may be provided to seal tlie exit of fluid around the shaft C7.
- cover plate 3 is bolted down to wall Iy by means of bolts 3K, while at the same time it catches the top 6f of the vertical legs 6h of the wedge bearings 6a in its corresponding peripheral inner groove 6c-
- wedges are not shown in FIG. 4 and are shown in FIG. 6 and 9 only. It is pointed out here that in many cases, it might be sufficient to provide wedge bearings only on one side of the shut off.
- the shaft C7 is rotated manually or by an actuator or by an electric motor", which rotates openings Zl and Z2 in FIG. 4 to close or to open the shut off valve.
- the flow through the valve is depicted by arrows Fl, F3, F4 and F2.
- the d_nlet chamber of the valve is indicated by A and the outlet chamber of the valve by B. Openings A7 and B7 are provided in ttie walls of pipes Al and Bl. Two sets of openings indicated by 3D and 3E are provided in the cover plate 3 and in the bottom plate Ie to connect the pilot control valves.
- the fluid Fl (which may be liquid, air or gas) from the upstream pipe, enters inlet chamber A and flows in a divided path F3 and F4, and the same fluid F2 exits the valve through outlet chamber B.
- the control means which are comprised of the needle valve and pilot control valve, are used to control the flow control means, which are elastomeric diaphragms (or pistons, as in FIG. 14) , and how the valve functions, will be discussed.
- Opening A7 is connected to control means needle valve Vl through tube tl, and tube t2 between needle valve Vl and pilot control valve V3 is connected to two threaded openings depicted by 3D (provided in cover plate 3 and in bottom plate Ie) by means of a two way loop tube t3 .
- the pilot control valve V3 is connected to threaded opening B7 by means of tube t4.
- the opening passages means for fluid flow, are equally divided and evenly distributed about the partitioning means. Once ttie valve V3 is opened to modulate , the fluid pushes away the diaphragms Dl and D2 from the openings provided in said two seats 2E and El, and makes its path from inlet chamber A, to chamber B, thence out of the valve into the down stream pipe which is not shown.
- Two optional opening 3E in cover plate 3 and base plate Ie are provided to add additional control valve or valves if design requires. Additional openings may be provided four a check valve.
- the invented valve is controlled by means of needle and pilot control valve.
- FIG. 5 is the same as FIG. 4, the only difference being that the cylindrical wall 2B of the shut off valve is provided with four openings in FIG. 5 instead of two. Two additional openings are provided by th.e pipe p, which pipe has outer diameter 2p and inner diameter Ip. The opening through the pipe p is indicated by Z3.
- the central portion of partition plate 2A is excavated, and pipe p is integrated with the partitioning means partition plate 2A and with the wall 2B of the shut off valve 2. If the piped shut off valve is quickly turned from its opened position to its closed position, as is shown in FIG. 5, and a fluid surge is produced, the preset control valve V3, which limits the pressure rise in the pipe line, at once opens to relieve the pressure and to mitigate the surge by allowing tlie passage of fluid under the inflated diaphragms
- the valve can function simultaneously as a shut of f valve and pressure surge relief valve. From here after the -valve in FIG. 5 will be called the "piped shut off valve" .
- the piped shut off valve of FIG. 5 also can function as a pressure reducing valve, and check valve simultaneously.
- FIG. 6 already has been discussed along with other drawings, and it will be discussed along with FIG. 9 again.
- FIG. 7 shows the pipe tubular seal 5p in groove Ip, and its relative posit ⁇ on with respect to wall Ia of the Inner cage, and also its relative location with respect to wall 23 of shut off valve 2.
- the outer surface 2C of wall 2B remains in contact with the primary seal 5p.
- the thickness of the primary seal immediately around the inlet and outlet openings o>f the shut off valve is slightly thicker than elsewhere, to asserie the proper seal of fluid.
- at least two bolts 5Z shown in FIG. 6 are inserted into openings Nl and N2. The bolts function to prevent the displacement, under pressure, of tlie elastomeric material of the seal 5p. These bolts also fix the tube in a predetermined location.
- FIG. 7 shows circular openings 2L and 2M in plate 2E.
- the size, the geometry, and the direction of the opening through the plates 2E and El may differ from valve to valve.
- circular openings are shown in this FIG. 7.
- the front inlet openings, to the shut off valve are shown by yl, y5 and Zl; and outlet openings from the shut off valve are shown by z2, y ⁇ and y2.
- the other elements of FIG. 7 have been discussed before.
- FIG. 8 shows reducer elastomeric seals rl and X in the reducer pipe inlet and reducer pipe outlet of the valve, and their relative positions with respect to wall 2B of the shut off valve. There is no difference in seals rl and x . A slight gap G is provided between face r3 and surface 2C of wall 2B. Fluid enters cavity r4 and helps to balance the seal hydraulically to a great extent. Face r2 of the seal prevents the ⁇ luid from traveling further from the cavity r4. The back of the seal is shown by r5 which may be provided with indentations r7 to make the back act as a spring and to keep the seal always in contact with face 2C. Because the elastomeric material gives out to force, deflection of indentation r7 reduces frictional force to be overcome by the wall 2B of shut off valve when the valve is rotated. The rest of FIG. 8 was discussed earlier.
- FIG. 9 was discussed along with FIGS. 4 and 6.
- Fig. 9 illustrates the concept of wedge bearings and the relative positions of locking wedges 6a with respect to wall Iy of the inner ca-vity of cage 1. It also shows the relati"ve position of wall 2y of the shut off valve with respect to wedge 6a. It also shows how the end portion 6b of horizontal leg ⁇ cj is situated in groove 6d of wall 2y of the cylindrical shut off valve.
- the circumference of the cover plate 3 is shown by 3.A, and the circumference of Iy is shown by Iq.
- the entrance grooves for leg 6h (also shown in FIG. 6) , in the peripheral portion Iq of wall Iy, are shown by 6e.
- the ⁇ ircumferetial groove in the outer surface of wall 2y is shown by 6d (also is shown in FIG. 6) .
- bolt k The location, of bolts for independent wedge bearings is shown by bolt k.
- the .bolts k are used to hold vertical legs 6Jh of independent inverted, wedges 6a to outer cylindrical surface Iq of wall Iy.
- the independent wedge is a wedge when its top en ⁇ 3. 6f is not held in groove 6C provided in cover plate 3, and it remains independent of cover plate 3.
- FIG. 9 also depicts the drive (of FIGS. 6, 5 # 4, and 3) to rotate the shut off valve 2. It depicts shaft C8, pedestal disk C9, spoke bars C5, rim CIl, and projected fingers C6. Fingers C6 are locked, by mounting them into the corresponding cut grooves provided in wall 2y of the rotatable cylindrical shut off valve 2. Thus, by rotating shaft C8, the shut off valve 2 is rotated to open orr to close the valve.
- FIG. 10 is similar to FIG. 4; but it differs in that the valve drive is modified, and it differs in how trie diaphragm's fringe is tied to seat 2E and El.
- inward inclines C4 and C15 of walls 2y and 2R are removed, and end portion 4F of each diapbiragm Dl and D2 is tied to seat 2E by means of ring washer 4D and bolts 4G.
- the cover plate 3 itseljE becomes the drive to rotate the shut-off valve 2.
- a different type of seal 5b is provided for the cylindrical shut of valve 2.
- the openings 2L, 2M, E2 and E3, in seats 2E and El, are vertical instead of slanting as in FIGS. 4 and 5.
- bolt bearings locking means are provided which are depicted by the plurality of bolts 7 and 7C and circular grooves 7a and 7b provided in walls 2R and 2y respectively. At least one bolt 7C in each groove 7a and 7b will have a longer stem than the stems of all other bolts, to traverse the entire depth of the groove and to create interference with at least one restriction provided by the raised bottom sections of the grooves inside the grooves 7a and 7b. Thus, by providing interferences at 90 degrees in said grooves 7a and 7b, the rotation of the shut off valve can be limited to 90 degrees.
- valve 6 and 9 can be employed, and bolts 5Z in FIGS. 6 and 9 can be eliminated.
- the valve functions in exactly the same way as the valve in FIG. 4, and it will function exactly like the -valve of FIG. 5, if it is provided with partitioning means pipe p instead of partitioning means partitioning plate 2A.
- FIG. 10 and FIG. 11 can also be provided -with piped partitioning pipe p as shown in FIG. 5.
- the shaft C7 of the valve drive is situated in the center of cover plate 3.
- the shaft C7 can be integrally cast with cover plate 3 or it can be welded to that cover plate.
- the cylindrical wall 2y is extended on both sides equal in lengtti. to the depth 3C of groove 3F.
- circular groove 3F is provided in the circular peripheral stepped u ⁇ > fringe portion 3G of cover plate 3, to catch the circular ends 2P and 3X of walls 2y and 2R.
- a set of rotatable camming jaw means J are mounted over 3GS to catch the circumferential groove J3. Said camming jaws means are invented by the inventor under U.S. patent serial numbers 5,387,017 and 5,868,441.
- the jaw J has long leg Jl and the shorter leg J2 connected, by a bridge J4.
- the end of jaw J2 catches the circumferential groove J3.
- groove J3 can be caught by means of J2, or by reverse rotation J3 can be freed from J2.
- the jaws J, and 3G of cover plates 3 are connected and fasteixed together by means of threaded bolts 3K, which are screwed to walls 2Y and 2R.
- the ends of the plurality of bolt bearings 7 are mounted in the intermittent grooves 7b and 7a, and the shut-off valve can be rotated to a pre-designed rotation about its axis .
- FIGS. 10 and 11 can be rrotated manually, by an actuator, or by an electric motor.
- the shafts of FIGS. 10 and 11 require no bushing and sealing.
- a seat can be provided by constructing a detachable bridge shown by BIl and B12 in FIG. 11, which bridge will cross over 3G of cover plate 3, and will be supported by means of brackets attached to the cylindrical, wall Ia of cage 1.
- the actual design of the bridge is not shown- Two opposite seals depicted by 5b and 5a at the inlet and outlet of the shut-off valve are provided around openings Zl and Z2 respectively.
- seals 5b and 5a are placed in groove g2 constructed in the outer surface 2C of cylindrical wall 2B of the shut off valve 2.
- a plurality of openings g3 are provided for the entrance of fluid to act against the backs gl of seals 5b and 5a to push them against surface Ib of wall Ia.
- These seals rotate along with the wall 2B of the shut off valve 2.
- the rest of the valve has been explained with other FIGS.
- the valve of FIG- 10 will operate the same as the valve of FIGS. 4 and 5. It is understood that the same type of needle valve and pilot control -valve can be used for the valves in FIGS. 10, 11, 12 and 14. It is understood that seal gasket 5p, instead of seals 5a and 5b shown in FIG. 10, can be used with the valve shown in FIG. 10.
- FIG. 11 is exactly the same as FIG. 10, except that the top rotatak>le cover 3 is a flat circular plate, which is tied to the circular top 2P of wall 2y by means of the plurality of bolts 3K, which are screwed into the wall 2Y. Thus cover 3 and 2B rotate together as a unit.
- the locking bearing bolts 7, and the shaft C7 have the same functions as explained in FIG. 10.
- the functions of the valve are no different than the functions of the valves explained in FIGS. 4, 5, and 10.
- a cross over bridge to provide a seat for an electric motor, or for an actuator, to operate on shaft 7, is depicted by BlI and B12.
- a seal to seal the exit of fluid from cavity C is shown by 5M. It is pointed out here again that locking bolt bearings may be discarded in some applications of the valve, and the shut off valve 2 remains x-otatable.
- FIGS. 12 and 13 will be discussed together.
- the cross- section taken along line 4-4 in FIG. 12, and shown in FIG. 13, is not a true cross-section, though FIG. 13 depicts a conceptual cross-section corresponding to FIG. 12.
- the sizes of the openings in FIG. 12 and 13 are not the same, and are not to the same scale. The same will be the case in FIGS. 14 and 15.
- the cylindrical partitioning means constituting a vertical pipe and a horizontal pipe reducer are used instead of partitioning means used in FIGS. 4 to 11.
- FIGS. 12 and 13 is for diverting the fluid flow by cylindrical partitioning means C20 and pipe reducer means Z (which are integrated with the cylindrical wall 2B of the cylindrical valve 2 by welding or by casting) in two more directions than the valves discussed up to FIG. 11.
- Two added pipe outlets are shown by pi and p2.
- Within the cylindrical shut off valve 2 in FIGS. 12 and 13 is provided another concentric cylinder C20.
- the diameter and height of cylinder C20, are predetermined according to the intended functions of the valve.
- the inner and outer surfaces of C20 are shown by C21 and C22, respectively.
- the cylinder C20 is made integral with two seats 2 ⁇ and El on which the diaphragms Dl and D2 rest.
- the central circular portions of flat plates 2 ⁇ and El shown in FIGS.
- the fluid Fl enters cavity ZlO of cylinder C20, and it gets divided into two parts indicated by the arrows inside cavity ZlO. Beyond cross bars Xl and X2 the fluid spreads radially and passes through openings 2L and ⁇ 2, and spreads around the outer surface C21 of cylinder C20, till it discharges through three openings Z2, Z3 and Z4 in the wall 2B of the shut off valve 2, and enters into pipe pieces pi, p2 and Bl (as shown in FIG. 13) . Down-stream pipes are not shown. The diaphragms of the valve are controlled as described under FIG. 4. Thus a single pilot control valve can control the fluid supplied down stream to three branches of pipes.
- the valve can be a shut off valve for all the pipe lines or i_t can shut off any one of the down stream openings while keeping the other two openings open.
- the valve also can divide the fluid proportionally, according to the size of openings down stream.
- the function of the cylindrical gasket seal 5p is the same as in FIG. 4. As explained earlier -under FIG. 4, the thickness of the gasket is slightly more in the sections of openings than elsewhere.
- Four openings N3 , N4 # N5 and N6 are provided for bolts 5Z, which are shown in FXG. 13. The rest of the valve already has been discussed along with other FIGS.
- FIGS. 14 and 15 can be studied together.
- FIGS. 14 and 15 are similar to FIGS. 12 and 13, except that the diaphragms Dl and D2 are replaced by two pistons to control the fluid.
- the piston and cover on one side are the exact mirror image of the piston and cover on the opposite side. It is understood that when one side is being explained the other side is simultaneously expZLained. Only those parts will be discussed here which are modified or new, and were not discussed previously.
- the two pistons C26 and C31 are mounted around a common rod 3U with ends 3J and 3T. Each piston is heILd between pedestal 3r on said common rod and cover 3. Pistons C26 and C31 rest on seats 2 ⁇ and El as did diaphragms Dl and D2 in FIGS. 12.
- the seats 2E and El are provided with circular openings 2L, and at least two conical bars L from the piston C26 or piston C31 are projected through openings 2L. If the val-ve is designed to redixce a very high fluid pressure in the pipe line to a low pressure, then conical barb L is projected through each circular opening 2L. The barbs L provide dead end strikes against the fluid flow to dissipate energy.
- each piston has a hollow shaft C27 provided with a square cross-sectional opening 3q, which is mounted around a corresponding square section 3H of rod 3U, and the rest of the shaft is circular i_n cross-section.
- the square section of rod 3U extends from 3r and through the entire lengjth of the circular cavity 3N of cover 3.
- the inner surface 3M of cavity 3N and outer surface of hollow shaft C27 are provided with a loose fit.
- the cavities 3 ⁇ tf and Cl are kept fluid communicative for the fluid to flow between two cavities.
- the opposite cavities 3N are loaded with counter weight springs 3X.
- Ring 3S may be provided to retain space for fluid between cover 3 and piston C26 when they are nearest to each other.
- the covers 3 are held to the cage by means of bolts 3K.
- Either type of seal C29 or C30 may be provided for the pistons.
- the outer porti_on of tubular seal C30 for piston C31 is provided serration for deflection. Seal C30 can also secure space for fluid between cover 3 and piston C31 when they are nearest to each other.
- the fluid enters the cylinder C20 through chamber A and the opening Z5 of reducer Z.
- the pistons start to modulate to control the flow of fluid through the valve.
- the openings A7 and B7 .Ln valve pipes Al and Bl; and openings 3D in covers 3 in FIG. 14, have the same functions as discussed in FIGS. 4 and 5.
- Thoixgh needle valve Vl and the pilot control valve V3 are not shown in FIGS. 14, it is yet understood that they are used with the piston valves depicted in FIGS. 14, ancl that they function the same way as they function with the valve in FIGS. 4 and 5.
- the diverted fluid shown by arrows inside cylinder C20 acts agarLnst the pistons C26 and C31.
- the valve opens, the fluid spreads radially over seats 2E and El, and around the outer surface C21 of cylinder C20.
- the modulating opposite pistons control the flow through the valve, and the valve can act as a pressure reducer or as a shut off valve.
- the valve can control flow to all the outlets simultaneously.
- the end 3J of shaft 3U can h>e rotated by means of an electric motor, and end 3T can be rotated manually.
- the shaft 3U, aixd pistons C26 and C31 by means of conical barbs L passing through openings 2L in seats 2E and El, provide a drive to rotate the shut off valve 2, to block the fluid flow to any one of the openings yl, y2, pi and p2 or shut the flow entirely to all openings .
- a seals between seat 2E and piston C26; and. a seal between seat ⁇ l and piston C31 may be a surface to surface seal, or any other type of seal may be provided. It is also> understood that any seals along with their grooves may be eliminated if not required. If steam is going through the valve, the only seals which will be needed are 5d and 3L. It all depends on how much leakage through the valve is permitted, and what kind of fluid is controlled.
- FIG. 16 is an axial vertical section, of the open ended cylindrical cage, the first degree component, where said cylindrical cage is directly welded to tb_e inlet and outlet pipes Al and Bl, where now pipes Al and Bl repjresent pipes from the pipe line.
- the welding of the pipes, to connect them to the cylindrical valve at the inlet and outlet sides, are shown by W and Wl respectively.
- the cavity depicted, by Q is provided for ease of mounting the cylindrical shut off valve and for ease of rotation of the shut off valve.
- FIG. 17 is the same valve as in FIG. 4, but two opposite covers 3 on opposite ends of the cylindrical shut off valve 2 are provided.
- the inward projected cylindrical threaded flange T of each cover 3 is mounted inside the threaded inner faces of cylindrical walls 2y and 2R, wherein the fringe 4F of each diaphragm Dl and D2 are tied down to seats 2E and El by the compression force of the threaded flange T.
- fringe 4F also acts as a seal against the leakage of fluiid from the cavity C.
- a plurality of bolts 3K restrict the cover from unscrewing. Quarter turn restrictions can be provided, to limit the rotation of the cylindrical shut off valve by providing restricting elements between covers 3 and opposite cylindrical walls Iy and Iw of the cage.
- each cover can be rotated manixally or by an actuator or by an electric motor.
- the bridge shown by Bl-L and B12 in FIG. 11 can be provided.
- the locking bearings described in FIGS. 6 and 9 can also be used.
- Two opposite gasket seaILs between the cage and the cylindrical shut off valve to stop leakage of fluid are shown by 5d and 5L. The rest of the valve has been discussed under FIG. 4. each.
- valve sl ⁇ own in FIGS. 4, 5, 10, and 11 can be operated as a conventional Schotoff valve by eliminating diaphragm 4 and openings 3D and 3E.
- the shut off valve 2 can be provided with more than one type of gasket seals, and more than one type of flow control means to control the fluid through the valve.
- the same cage can be used to accommodate several types of valves.
- the valve can be manufactured from more than one type of material. Corners will all be rounded to desired roundness.
- Other types of gasket seals not shown in the drawings may be adapted anywhere in the valve to> replace the gasket seals shown in the drawings.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
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- Details Of Valves (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CA002584539A CA2584539A1 (en) | 2004-10-21 | 2004-10-21 | Integrated multipurpose caged valve |
PCT/US2004/034869 WO2006046942A1 (en) | 2004-10-21 | 2004-10-21 | Integrated multipurpose caged valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/US2004/034869 WO2006046942A1 (en) | 2004-10-21 | 2004-10-21 | Integrated multipurpose caged valve |
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WO2006046942A1 true WO2006046942A1 (en) | 2006-05-04 |
Family
ID=36228096
Family Applications (1)
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PCT/US2004/034869 WO2006046942A1 (en) | 2004-10-21 | 2004-10-21 | Integrated multipurpose caged valve |
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CA (1) | CA2584539A1 (en) |
WO (1) | WO2006046942A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD20120019A1 (en) * | 2012-02-07 | 2013-08-08 | S R L Sa | "VALVE" |
EP3951220A4 (en) * | 2019-03-27 | 2022-11-16 | CH Creative Co., Ltd. | Guide control device for fluid transmission and application system thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6651697B2 (en) * | 2000-05-23 | 2003-11-25 | Xomox International Gmbh & Co. | Fitting, especially a tap cock |
-
2004
- 2004-10-21 WO PCT/US2004/034869 patent/WO2006046942A1/en active Application Filing
- 2004-10-21 CA CA002584539A patent/CA2584539A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6651697B2 (en) * | 2000-05-23 | 2003-11-25 | Xomox International Gmbh & Co. | Fitting, especially a tap cock |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD20120019A1 (en) * | 2012-02-07 | 2013-08-08 | S R L Sa | "VALVE" |
WO2013117322A1 (en) | 2012-02-07 | 2013-08-15 | Sa Fire Protection S.R.L. | Valve |
US9423040B2 (en) | 2012-02-07 | 2016-08-23 | Sa Fire Protection S.R.L. | Fire protection deluge membrane valve with multiple closing apertures |
EP3951220A4 (en) * | 2019-03-27 | 2022-11-16 | CH Creative Co., Ltd. | Guide control device for fluid transmission and application system thereof |
Also Published As
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CA2584539A1 (en) | 2006-05-04 |
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