WO2007072534A2 - Combination of ball valve with reduced flow valve device - Google Patents
Combination of ball valve with reduced flow valve device Download PDFInfo
- Publication number
- WO2007072534A2 WO2007072534A2 PCT/IT2006/000863 IT2006000863W WO2007072534A2 WO 2007072534 A2 WO2007072534 A2 WO 2007072534A2 IT 2006000863 W IT2006000863 W IT 2006000863W WO 2007072534 A2 WO2007072534 A2 WO 2007072534A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- exhibits
- fluid
- defining
- holding lever
- Prior art date
Links
Classifications
-
- 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
- F16K5/06—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 spherical surfaces; Packings therefor
- F16K5/0605—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 spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
-
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/184—Combined check valves and actuated valves
- F16K15/1848—Check valves combined with valves having a rotating tap or cock
-
- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
- F16K35/027—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by pushing or pulling the valve actuator, the valve actuator being rotated subsequently to bring the valve closure element in the desired position
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
- F16K47/10—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths in which the medium in one direction must flow through the throttling channel, and in the other direction may flow through a much wider channel parallel to the throttling channel
Definitions
- the object of the present invention is a fluid interception valve according to the preamble of claim 1.
- Fluid interception valves are already known wherein a shutter, for example a spherical shutter, besides being movable between an open position for the fluid flow and, a closed position, is also alternately lockable into said positions so as to prevent rotation thereof.
- a shutter for example a spherical shutter
- EP 1188009 by the same applicant describes a fluid interception valve, in particular water, wherein the shutter control rod is attached to a holding lever or throttle wherein there are obtained two locking recesses, angularly spaced by 90°, intended for strictly conjugating with as stopping tooth provided on the valve
- the object of the present invention is to meet such need.
- Another object of the present invention is to meet the need mentioned above using the same interception valves currently in production, for example of the type described above .
- Such objects are achieved with a fluid interception valve according to claim 1 and with a valve device suitable for being incorporated in said valve according to claim 15.
- a preferred valve device suitable for being incorporated in said valve according to claim 15.
- figures 5a, 5b and 5c show a bottom plan view of the holding lever and the stopping tooth of the valve;
- figure 6 shows a cross section view of the valve in a second embodiment, in closed position;
- figure 6a shows a bottom plan view of the holding lever of the valve of figure 6;
- figures 7 and 7a show the valve and the relative holding lever with the latter raised for the subsequent rotation into limited opening position
- figures 8 and 8a show the valve and the holding lever in limited opening position
- figure 9 shows a perspective view of the holding lever only, shown in upturned position
- a fluid interception valve comprising a valve body 11 defining, relative to the flow direction of the fluid indicated by the arrows, at least only inlet duct 12 and at least one outlet duct 13. Between said two ducts there is arranged, with the interposition of sealing elements 14, a spherical shutter 15 defining at least one diametrical duct 16 suitable for placing in communication said inlet 12 and outlet ducts 13. [0025]
- the spherical shutter 15 is turnable by a control rod 17 conjugated to and extending through a neck 18 of the valve body 11.
- control rod 17 is removably fixed to a holding lever or throttle 19; 119 better described hereinafter.
- a holding lever or throttle 19 in accordance with the invention, in the diametrical duct 16 of the spherical shutter 15 there is inserted a
- the valve device comprises a body 21 with substantially annular structure defining a valve seat 22 that delimits said main passage for the fluid, and a piston shutter member 23 movable between an advanced closed position of said seat 22 and a retracted open position of said seat 22.
- the annular body 21 extends along a main axis X coinciding with the axis of the diametrical duct 16 of the spherical shutter 15.
- the piston shutter member 23 exhibits a head 24 wherein there is obtained at least one groove 25 that defines a secondary passage for the fluid when the piston shutter member 23 is in advanced position.
- the valve device 20, and therefore valve 10 can
- valve device 20 can be arranged in fully open position when it exhibits the relative axis
- the piston shutter member 23 is further influenced by elastic means 26, for example shaped as a helical spring, to remain normally in advanced position.
- elastic means 26 is selected so that, when head 24 of the shutter member 23 is frontally impinged by the incoming fluid, they yield thus allowing the retraction of said member.
- the valve seat 22 has a conical or flared shape and the head 24 of
- the holding throttle or lever 19 exhibits a cylindrical skirt 30 that surrounds neck 18 of the valve body 11.
- a slot 31 that engages with a stopping tooth 32 provided on a side of the valve body 11 for defining the opening and closing positions of the spherical shutter (figure 5a) .
- said slot 31 exhibits a width equal to an angle of 90°.
- said skirt 30 there are further obtained locking recesses 33, 34 suitable for
- the holding lever or throttle 19 exhibits, at the opposite side relative to the cylindrical skirt 30, an opening 35 suitable for geometrically coupling with the operating rod 17.
- the latter exhibits, at least at the level of its end protruding from neck 18, a substantially polygonal section, for example rectangular.
- said opening 35 for coupling with the control rod 17 is a through opening, that is, it crosses all throttle 19.
- the latter can therefore be removably fixed to the control rod 17 by a fixing screw 36 accessible through said opening 35.
- slot 131 exhibits an overall width equal to an angle of 180° and each of the two portions with different depth is 90° wide.
- the fixing screw 36 is an anti- tampering screw, that is, it exhibits a special head so as to be screwed/unscrewed only by authorised personnel having a specific wrench or tool .
- an anti- tampering screw that is, it exhibits a special head so as to be screwed/unscrewed only by authorised personnel having a specific wrench or tool .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Taps Or Cocks (AREA)
- Multiple-Way Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a fluid interception valve comprising a spherical shutter (15) defining at least one diametrical duct (16) for the fluid passage, wherein in said duct there is inserted a valve device (20) which, according to its orientation relative to the direction of said flow, is suitable for alternately defining a main passage for said fluid and a secondary passage with smaller section for a reduced flow of said fluid through the valve.
Description
"Fluid interception valve with assured minimum flow"
[0001] The object of the present invention is a fluid interception valve according to the preamble of claim 1. [0002] Fluid interception valves are already known wherein a shutter, for example a spherical shutter, besides being movable between an open position for the fluid flow and, a closed position, is also alternately lockable into said positions so as to prevent rotation thereof. [0003] For example, EP 1188009 by the same applicant describes a fluid interception valve, in particular water, wherein the shutter control rod is attached to a holding lever or throttle wherein there are obtained two locking recesses, angularly spaced by 90°, intended for strictly conjugating with as stopping tooth provided on the valve
desirable to assure a minimum quantity of water to the users, even if in arrears, for satisfying at least the primary needs . [0006] The object of the present invention is to meet such need.
[0007] Another object of the present invention is to meet the need mentioned above using the same interception valves currently in production, for example of the type described above . [0008] Such objects are achieved with a fluid interception valve according to claim 1 and with a valve device suitable for being incorporated in said valve according to claim 15. [0009] To better understand the details and advantages of the valve according to the present invention, a preferred
holding lever separate from the body and upturned for actuating the control rod;
[0014] figures 5a, 5b and 5c show a bottom plan view of the holding lever and the stopping tooth of the valve; [0015] figure 6 shows a cross section view of the valve in a second embodiment, in closed position;
[0016] figure 6a shows a bottom plan view of the holding lever of the valve of figure 6;
[0017] figures 7 and 7a show the valve and the relative holding lever with the latter raised for the subsequent rotation into limited opening position;
[0018] figures 8 and 8a show the valve and the holding lever in limited opening position;
[0019] figure 9 shows a perspective view of the holding lever only, shown in upturned position;
indicates a fluid interception valve comprising a valve body 11 defining, relative to the flow direction of the fluid indicated by the arrows, at least only inlet duct 12 and at least one outlet duct 13. Between said two ducts there is arranged, with the interposition of sealing elements 14, a spherical shutter 15 defining at least one diametrical duct 16 suitable for placing in communication said inlet 12 and outlet ducts 13. [0025] The spherical shutter 15 is turnable by a control rod 17 conjugated to and extending through a neck 18 of the valve body 11.
[0026] The control rod 17 is removably fixed to a holding lever or throttle 19; 119 better described hereinafter. [0027] In accordance with the invention, in the diametrical duct 16 of the spherical shutter 15 there is inserted a
lever 19; 119 through the control rod 17. [0029] In a preferred embodiment, the valve device comprises a body 21 with substantially annular structure defining a valve seat 22 that delimits said main passage for the fluid, and a piston shutter member 23 movable between an advanced closed position of said seat 22 and a retracted open position of said seat 22.
[0030] Preferably, the annular body 21 extends along a main axis X coinciding with the axis of the diametrical duct 16 of the spherical shutter 15.
[0031] The piston shutter member 23 exhibits a head 24 wherein there is obtained at least one groove 25 that defines a secondary passage for the fluid when the piston shutter member 23 is in advanced position. [0032] The valve device 20, and therefore valve 10, can
leak.
[0034] By way of an example, if at the fluid pressure of 2 bar the flow rate of valve 10 is about 45 litres a minute when the valve device is in fully open position, when it is in limited opening position the flow rate decreases, pressure being equal, to about 5 litres a minute. [0035] It should be noted that groove 25 may also be obtained in the valve seat 22 instead that in head 24 of the piston shutter member 23. [0036] Advantageously, the movement of the piston shutter member 23 between the advanced position and the retracted position, and vice versa, is caused by the same pressure of the fluid acting thereon. [0037] In particular, the valve device 20 can be arranged in fully open position when it exhibits the relative axis
the piston shutter member 23, pushing it into advanced closed position of the valve seat 22 (figure 2) . In this position, a predetermined amount of fluid still reaches outlet 13 of valve 10 passing through the groove or grooves 25 obtained in head 24 of the shutter member 23 or in the valve seat 22.
[0039] Preferably, the piston shutter member 23 is further influenced by elastic means 26, for example shaped as a helical spring, to remain normally in advanced position. The strength of said elastic means 26 is selected so that, when head 24 of the shutter member 23 is frontally impinged by the incoming fluid, they yield thus allowing the retraction of said member. [0040] In accordance with a preferred embodiment, the valve seat 22 has a conical or flared shape and the head 24 of
[0042] On the annular body 21 of the valve device 20 there is fitted at least one sealing element 28 resting on the inside wall of the diametrical duct 16 of the spherical shutter 15. [0043] Going back to the operating means of valve 10, in a first embodiment illustrated in figures 1-5, the holding throttle or lever 19 exhibits a cylindrical skirt 30 that surrounds neck 18 of the valve body 11. In said skirt 30 there is obtained a slot 31 that engages with a stopping tooth 32 provided on a side of the valve body 11 for defining the opening and closing positions of the spherical shutter (figure 5a) . For example, said slot 31 exhibits a width equal to an angle of 90°. [0044] In a preferred embodiment, in said skirt 30 there are further obtained locking recesses 33, 34 suitable for
opposite to one another, the holding lever or throttle 19 exhibits, at the opposite side relative to the cylindrical skirt 30, an opening 35 suitable for geometrically coupling with the operating rod 17. Advantageously, the latter exhibits, at least at the level of its end protruding from neck 18, a substantially polygonal section, for example rectangular. [0047] In accordance with a preferred embodiment, said opening 35 for coupling with the control rod 17 is a through opening, that is, it crosses all throttle 19. The latter can therefore be removably fixed to the control rod 17 by a fixing screw 36 accessible through said opening 35. [0048] For example, let's assume that the valve is in the fully open position illustrated in figure 1. The
so as to ensure the passage of a predetermined minimum amount of fluid, it is sufficient to remove the holding lever 19 from the control rod 17, for example unscrewing the fixing screw 36, upturning the holding lever 19, conjugating opening 35 with the control rod 17 and turning the latter until the valve device 20 is in the limited opening position, that is, with the piston shutter member 23 facing the outlet duct 13 of the valve, or, in other words, turned by 180° relative to the starting position.
[0050] In order to lock the valve in this limited opening position it is sufficient to remove the holding throttle or lever 19, upturn it into the normal use position and fix it to the control rod so that the locking recess 33 engages with the stopping tooth 32 (figure 5c) .
lever only if it is raised or removed from neck 18 of the valve body. In other words, the second portion of slot 131" forms with the first portion 131' a step 140 defining an abutment for tooth 32. Removing the holding lever from the valve body by an extent at least equal to the height of step 140, the lever itself is allowed to continue the rotation along the second slot portion 131" . [0052] In accordance with a preferred embodiment, slot 131 exhibits an overall width equal to an angle of 180° and each of the two portions with different depth is 90° wide. [0053] Thus, considering the open valve with holding lever 119 oriented so that the stopping tooth 32 is in abutment against the end of the first portion of slot 131' opposite step 140 as starting position, by turning the lever by 90° the valve is moved into closed position,
keeping the holding lever or throttle and the spherical shutter therewith in the limited opening position (or in the fully open position if the holding lever is fully unscrewed from the valve, turned by 180° and screwed again), preventing the rotation thereof.
[0056] In skirt 130 there is further obtained, at a distance of 90° from recess 133, a second recess 134 suitable for keeping the holding lever into the closed valve position, preventing the rotation thereof. [0057] Advantageously, the fixing screw 36 is an anti- tampering screw, that is, it exhibits a special head so as to be screwed/unscrewed only by authorised personnel having a specific wrench or tool . [0058] Advantageously, on the control rod 17, at the end protruding from valve body 11, there is fitted an
scope of protection of the invention as defined in the following claims .
Claims
Claims
1. Fluid interception valve comprising a valve body (11) defining at least one inlet duct (12) and at least one outlet duct (13) for the fluid, a spherical shutter (15) placed with possibility of axial rotation inside said body and defining at last one diametrical duct (16) suitable for placing in communication said inlet and outlet ducts, characterised in that in said diametrical duct of the spherical shutter there is inserted a valve device (20) for intercepting the fluid flow into said duct which, according to its orientation relative to the direction of said flow, is suitable for alternately defining a main passage for said fluid and a secondary passage with smaller section for a reduced flow of said fluid through the valve.
and a retracted open position of said seat, in said piston shutter member (23) and/or in said valve seat (22) there being obtained at least one groove (25) defining said secondary passage when the piston shutter member is in advanced position.
4. Valve according to claim 3 , wherein the movement of the piston shutter member is substantially caused by the fluid pressure thereon.
5. Valve according to claim 3 or 4, wherein said piston shutter member is influenced by elastic means (26) to remain substantially in advanced position.
6. Valve according to any one of claims 3 to 5 , wherein said valve seat (22) has a conical or flared shape and wherein said piston shutter member (23) exhibits a head (24) having a truncated-cone end substantially
9. Valve according to any one of claims 2 to 8 , wherein said operating means comprise a control rod (17) that conjugates at an end with the spherical shutter (15) and a holding lever or throttle (19; 119) fixed to said control rod.
10. Valve according to claim 9, wherein said holding lever or throttle (19) exhibits a cylindrical skirt (30) wherein there is obtained a slot (31) that engages with a stopping tooth (32) provided on a side of the valve body for defining the open, limited opening and closed positions of the spherical shutter.
11. Valve according to claim 10, wherein said holding lever or throttle exhibits, on the opposite side relative to said cylindrical skirt (30) , an opening (35) suitable for conjugating, for example by geometrical coupling,
exhibits a width equal to a fourth of circumference and wherein in said skirt there are obtained two locking recesses (33, 34) angularly spaced from one another and relative to the slot by an angle equal to 90°. 14. Valve according to any one of claims 1 to 9, wherein the holding lever (119) exhibits a skirt (130) wherein there is obtained an annular slot (131) that engages with a stopping tooth (32) provided on a side of the valve body (11) for defining the open, limited opening and closed positions of the spherical shutter.
15. Valve according to claim 14, wherein the annular slot (131) exhibits a first deeper portion (131') suitable for allowing the rotation of the holding lever (119) and a second less deep portion (131") defining with the first portion (131') a step (140) of abutment for the tooth
and each of the two portions with different depth is 90° wide .
18. Valve according to claim 17, wherein the second portion of slot (131") ends with a locking recess (133) having the same depth as the first portion of slot (131') and suitable for strictly conjugating with the stopping tooth (32) for keeping the holding lever or throttle (119) and the spherical shutter therewith locked in the limited opening or in the fully open position. 19. Valve according to claim 18, wherein in the skirt (130) there is further obtained, at a distance of 90° from the recess (133) , a second locking recess (134) suitable for keeping the holding lever locked into the closed valve position. 20. Valve device (20) suitable for being inserted in a
21. Valve device according to claim 20, wherein said piston shutter member is influenced by elastic means (26) to remain substantially in advanced position.
22. Valve device according to claim 20 or 21, wherein said valve seat (22) has a conical or flared shape and wherein said piston shutter member (22) exhibits a head (24) having a truncated-cone end substantially complementary to the shape of said valve seat .
23. Valve device according to claim 20, 21 or 22, wherein the body of the valve device exhibits, on the opposite side relative to the valve seat, a portion (27) supporting and guiding the piston shutter member (23) .
24. Valve device according to any one of claims 20 to 23, wherein on the annular body of the valve device there is fitted at least one sealing element (28) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000161A ITBS20050161A1 (en) | 2005-12-22 | 2005-12-22 | INTERCEPTION VALVE OF A FLKUIDO WITH GUARANTEED MINIMUM FLOW |
| ITBS2005A000161 | 2005-12-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2007072534A2 true WO2007072534A2 (en) | 2007-06-28 |
| WO2007072534A3 WO2007072534A3 (en) | 2009-05-07 |
| WO2007072534A9 WO2007072534A9 (en) | 2013-12-05 |
Family
ID=37875685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2006/000863 WO2007072534A2 (en) | 2005-12-22 | 2006-12-21 | Combination of ball valve with reduced flow valve device |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITBS20050161A1 (en) |
| WO (1) | WO2007072534A2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2378170A2 (en) * | 2010-04-14 | 2011-10-19 | Genebre, S.a. | Ball valve |
| ITCO20110006A1 (en) * | 2011-03-07 | 2012-09-08 | Giacomini Spa | "SAFETY TAP FOR GAS" |
| US8944404B2 (en) | 2012-03-12 | 2015-02-03 | Giacomini S.P.A. | Gas safety valve |
| ITUB20160789A1 (en) * | 2016-02-16 | 2017-08-16 | Officine Rigamonti S P A | BALL VALVE AND REGULATION SYSTEM OF THE SAME |
| ITUB20160802A1 (en) * | 2016-02-16 | 2017-08-16 | Officine Rigamonti S P A | BALL VALVE AND REGULATION SYSTEM OF THE SAME |
| ITUA20161548A1 (en) * | 2016-03-10 | 2017-09-10 | Greiner Spa | INTERCEPT DEVICE AT LEAST PARTIAL OF A WATER FLOW. |
| CN110541946A (en) * | 2019-08-23 | 2019-12-06 | 江苏盐电阀门有限公司 | Wear-resisting ball valve capable of resisting high temperature and high pressure |
| IT201900016556A1 (en) | 2019-09-17 | 2021-03-17 | Riv Rubinetterie Italiane Velatta Spa | FLUID LIMITING DEVICE AND BALL VALVE INCLUDING SAID LIMITING DEVICE |
| ES2937813R1 (en) * | 2021-09-29 | 2023-05-17 | Greiner Spa | VALVE |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900023862A1 (en) | 2019-12-12 | 2021-06-12 | Greiner Spa | Valve equipped with a bypass channel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1188009A1 (en) | 1999-06-18 | 2002-03-20 | Valvosanitaria Bugatti S.p.A. | Valve or tap with blocking device for the stopper |
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| BE456449A (en) * | ||||
| FR562923A (en) * | 1923-02-06 | 1923-11-22 | Double damper valve | |
| GB545845A (en) * | 1941-12-17 | 1942-06-16 | Turley & Williams Ltd | Improvements in taps or cocks particularly for use with gas cookers |
| CH543024A (en) * | 1971-09-28 | 1973-10-15 | Far Fab Assortiments Reunies | Quick return choke |
| JPS59147170A (en) * | 1983-02-14 | 1984-08-23 | Fumoto Giken Kk | Fluid valve |
| JPS59231274A (en) * | 1983-06-13 | 1984-12-25 | Fumoto Giken Kk | Fluid valve |
| JPS6184482A (en) * | 1984-09-29 | 1986-04-30 | Toshiba Corp | Constant flow rate valve |
| DE4138968B4 (en) * | 1991-11-27 | 2005-02-24 | Grohe Water Technology Ag & Co. Kg | Shut-off valve for fluids |
| DE19847039C1 (en) * | 1998-10-13 | 2000-07-13 | F W Oventrop Gmbh & Co Kg | Gas pipe shutoff valve fitting has a ring section with an inner collar with structured cut-outs and recesses to be operated by the handgrip in a low cost assembly for fitting into the housing without modification |
| AT408480B (en) * | 1999-12-07 | 2001-12-27 | Hoerbiger Hydraulik | THROTTLE CHECK VALVE AND METHOD FOR THE PRODUCTION THEREOF |
| KR20000071966A (en) * | 2000-05-16 | 2000-12-05 | 곽원복 | Valve union with water saving function |
| DE10224430A1 (en) * | 2002-06-01 | 2003-12-11 | Bosch Gmbh Robert | Non-return valve for a fuel feed in a vehicle comprises a housing having an inlet opening and an outlet opening forming an inner chamber with a valve seat on the inlet side |
| ITMI20030412A1 (en) * | 2003-03-06 | 2004-09-07 | Fimcim Srl | ANTI-FRAUD BALL VALVE. |
| DE20312986U1 (en) * | 2003-08-22 | 2003-10-16 | Metallwerke Otto Dingerkus GmbH, 57439 Attendorn | Flow monitor for automatic shut-off of lines through which fluid flows |
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2005
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1188009A1 (en) | 1999-06-18 | 2002-03-20 | Valvosanitaria Bugatti S.p.A. | Valve or tap with blocking device for the stopper |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2378170A2 (en) * | 2010-04-14 | 2011-10-19 | Genebre, S.a. | Ball valve |
| EP2378170A3 (en) * | 2010-04-14 | 2013-11-20 | Genebre, S.a. | Ball valve |
| ITCO20110006A1 (en) * | 2011-03-07 | 2012-09-08 | Giacomini Spa | "SAFETY TAP FOR GAS" |
| WO2013050811A1 (en) * | 2011-03-07 | 2013-04-11 | Giacomini S.P.A. | Gas safety valve |
| US8944404B2 (en) | 2012-03-12 | 2015-02-03 | Giacomini S.P.A. | Gas safety valve |
| ITUB20160789A1 (en) * | 2016-02-16 | 2017-08-16 | Officine Rigamonti S P A | BALL VALVE AND REGULATION SYSTEM OF THE SAME |
| ITUB20160802A1 (en) * | 2016-02-16 | 2017-08-16 | Officine Rigamonti S P A | BALL VALVE AND REGULATION SYSTEM OF THE SAME |
| ITUA20161548A1 (en) * | 2016-03-10 | 2017-09-10 | Greiner Spa | INTERCEPT DEVICE AT LEAST PARTIAL OF A WATER FLOW. |
| CN110541946A (en) * | 2019-08-23 | 2019-12-06 | 江苏盐电阀门有限公司 | Wear-resisting ball valve capable of resisting high temperature and high pressure |
| IT201900016556A1 (en) | 2019-09-17 | 2021-03-17 | Riv Rubinetterie Italiane Velatta Spa | FLUID LIMITING DEVICE AND BALL VALVE INCLUDING SAID LIMITING DEVICE |
| ES2937813R1 (en) * | 2021-09-29 | 2023-05-17 | Greiner Spa | VALVE |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007072534A3 (en) | 2009-05-07 |
| ITBS20050161A1 (en) | 2007-06-23 |
| WO2007072534A9 (en) | 2013-12-05 |
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