WO2019224576A1 - Replaceable seat pocket and tool kit - Google Patents
Replaceable seat pocket and tool kit Download PDFInfo
- Publication number
- WO2019224576A1 WO2019224576A1 PCT/IB2018/053634 IB2018053634W WO2019224576A1 WO 2019224576 A1 WO2019224576 A1 WO 2019224576A1 IB 2018053634 W IB2018053634 W IB 2018053634W WO 2019224576 A1 WO2019224576 A1 WO 2019224576A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat pocket
- replaceable seat
- replaceable
- ring
- pocket assembly
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
- F16K3/0236—Packings the packing being of a non-resilient material, e.g. ceramic, metal
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/20—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats
Definitions
- the invention relates to a seat pocket assembly for a gate valve typically used in the upstream oil and gas industry.
- gate valves can be operated in various ways such as manually, hydraulically, pneumatically, and electrically. All operational models provide on-off flow control by aligning the gate, seat, and body flow bores (open) or aligning the solid part of the gate with the seat and body flow bores (closed).
- the gate makes a metal-to-metal seal with the seat and the seat makes a metal-to-metal and/or elastomeric seal with the valve body.
- Gate valves typically have a floating seat that is not rigidly held in place and the seat is captured within the seat pocket that has traditionally been a feature machined into the valve body. To operate the valve, the gate is moved up or down to either open or close the flow path.
- the patent application US2003015681 describes a valve sealing assembly comprising a first seat member (a pocket insert) and a second seat member (seat), with rear sealing rings and exterior annular retainer rings.
- the retainer ring on the pocket insert retains the pocket insert in the valve body and the retainer ring on the seat retains the seat in the pocket insert.
- the pocket insert comprises an exterior annular groove arranged to accommodate the retainer ring.
- the retainer ring is made of a flexible material, slightly oversized, to exert a force to the valve body and retain the pocket insert in the valve body.
- the retainer ring does not provide a seal but is preferably split to allow fluid flow around the ring.
- the pocket insert has an L-shaped cross section and accommodate the seat and make the interface between the seat and the valve body.
- the use of elastomeric seals require low energization and seat may be press fitted as is or press fit using a retaining collar. This is a disadvantage due to the risk that it may loosen unexpectedly causing the system to be a seat, floating in a seat, floating in a seat pocket. Where "floating" is contained or captured but not rigidly restrained.
- a main object of the present invention is to disclose a gate valve insertion that solves the problems mentioned above, a tool for installing such an inserti and a method for installation of the inserti.
- the invention describes a kit for this.
- the invention is A replaceable seat pocket assembly suitable for a gate valve comprising a gate valve body, a flow bore, a gate opening, a gate and a gate cavity, the valve body comprises a recess forming a replaceable seat pocket interface around the flow bore by the gate opening, the recess having a rear wall and an inward facing circumferential side wall with a threaded portion close to the gate opening;
- the seat pocket assembly comprises
- the energizing retaining collar having a threaded outer circumferential wall to interact with the threaded portion
- Such a replaceable seat pocket facilitates an easy maintenance and repair, just changing seat pocket insert instead of machining, welding, heat treating, and finish machining with carbon/low alloy, stainless, or CRAs.
- the repair will be much more cost and time efficient than for a valve without a replaceable seat pocket.
- the retaining collar (3) and the seat face ring (1) provides a fixed but replaceable seat pocket.
- wear is limited to inside the replaceable seat pocket, with significantly reduced wear to the main valve body, is a resulting advantage.
- the use of a metal to metal seal energized by the ERC is far more rigid and robust than a press fit cup design with elastomeric seals.
- the invention is also a replaceable seat pocket assembly installation tool for a replaceable seat pocket, please see Fig. 11 and Fig. 12, comprising
- the extension rod having a first end arranged for engagement with the torque key, and a second end with a bolt head such as for a hydraulic torque tool,
- the torque key being generally circular with a central engagement slot for engagement with the first end, and two or more arc-shaped load dogs on an outer circumference of the torque key, the load dogs arranged for engagement with one or more corresponding arc-shaped load slots in an energizing retainer collar of the replaceable seat pocket assembly.
- the invention also relates to a method for installing a replaceable seat pocket assembly in a gate valve comprising a gate valve body, a flow bore, a gate opening, a gate, a gate cavity, the valve body comprises a seat pocket interface recess forming a replaceable around the flow bore by the gate opening, the recess having a rear wall and an inward facing circumferential side wall with a threaded portion close to the gate opening, please see Fig. 14;
- Fig. la is section cut through a gate valve with a replaceable seat pocket, an RSP (1, 3), according to an embodiment of the invention.
- Fig. lb shows the detail indicated in Fig. la
- Fig. 2a is section cut through a gate valve with a replaceable seat pocket (1, 3) according to another embodiment of the invention
- Fig. 2b shows the detail outlined in Fig. 2a
- Fig. 3 is a combined section view and exploded view of the embodiment of Fig la.
- Fig. 4 is a longitudinal section view of a locking pin (21) for preventing rotation of the replaceable seat pocket (1, 3).
- Fig. 5 shows the embodiment as in Fig. la but with the gate (G) and seat (2) removed.
- Fig. 6 is a section view and part elevation view of an embodiment of the seal ring (20). Here the illustrated section is cut through two through-holes (24) for the locking pins (21).
- Fig. 7 is a detail section of the replaceable seat face ring (1) and the energizing collar (3) according to the embodiment of Fig la. the term "Energizing" is used for screwing in the collar (3) thus moving the seat face ring (1) inwardly to compress the seal ring (20), thus supplying mechanical energy to the seal ring (20).
- Fig. 8 is a detail section of the replaceable seat face ring (1) and the energizing collar (3) according to embodiment of Fig 2a.
- Fig. 9 is a section view of a gate valve with a replaceable seat pocket (1, 3) according to an embodiment of the invention.
- the gate (G) and the seat (2) are not shown.
- the right portion of the drawing is enlarged detail D from the overview section in the left portion of the sheet.
- Fig. 10 is a section view of a traditional gate valve (Prior art).
- the upper illustration is a gate valve in an open position, and in the lower illustration the gate and the seat are removed.
- Fig. 1 1 is an embodiment of the invention, a replaceable seat pocket assembly installation tool (1000), here shown in an exploded view.
- the ring (1004) to the left shall engage with the energizing collar (3) for screwing it in or unscrewing it.
- Fig. 12 is an embodiment of a replaceable seat pocket assembly installation tool (1000) in an assembled view as it will be assembled inside the valve body.
- Fig. 13 shows a gate valve body portion, in a partly cut through illustration and shows a replaceable seat pocket (1 , 3) (RSP) according to an embodiment of the invention, in its installed position.
- RSP replaceable seat pocket
- Fig. 14 is a similar illustration as Fig. 13 but with a replaceable seat pocket assembly installation tool (1000) according to an embodiment of the invention installed ready to be operated by an external torque tool.
- Fig. 15 shows a Replaceable Seat Pocket system according to an embodiment of the invention with the Energizing Retaining Collar (3) and Replaceable Seat Face (1 ) shown installed in valve body cut in half through the gate cavity (GC).
- GC gate cavity
- Fig. 16 shows an Energizing Retaining Collar (3) partly sectioned-off to show its angled load planes (309) and similar Torque Key (1004) with angled load plane (1009) views. This ensures that the torque key (1004) will not slip out axially during torque loading.
- Fig. 17a is a section view of a gate valve with a RSP according to an embodiment of the invention with design for a special designed seat, i.e with chamfer for a flared seat. The seat is removed. The right portion of the figure is enlarged detail D.
- Fig. 17b is a section view of a gate valve with an RSP similar to Fig. 17a with the special designed seat, i.e with chamfer for the flared seat (2) installed.
- the right portion of the figure is enlarged detail D.
- Fig. 18a is a section view of a gate valve with an RSP according to an embodiment of the invention with another energizing retaining collar (ERC) design. The seat is removed. The right portion of the figure is enlarged detail D.
- ERP energizing retaining collar
- Fig. 18b is a section cut of a gate valve with an RSP similar to Fig. 18a with an installed seat (2). The right portion of the figure is enlarged detail D.
- a precision machined metal ring (1) rigidly interfaces with the valve body (0).
- the seat (2) facing side of the replaceable seat pocket assembly (1, 3) is precision machined smooth and flat, providing a sealing surface, preferably metal, at least having the same sealing properties to the seat pocket that is traditionally machined into the body.
- the precision machined inside diameter of the retaining collar (ERC) (3) provides radial guidance for the floating seat (2).
- the invention is a replaceable seat pocket assembly (10) suitable for a gate valve comprising a gate valve body (0), a flow bore (B), a gate opening (GO), a gate (G) and a gate cavity (GC), said valve body comprises a recess (13) forming a replaceable seat pocket interface around said flow bore (B) by said gate opening (GO), said recess (13) having a rear wall (131) and an inward facing circumferential side wall (130) with a threaded portion (132) close to the gate opening (GO);
- reverse side (12) is for sealing arrangement to saidrear wall (131) and said outer circumference wall (101) is for tight fitting arrangement to said inward facing circumferential side wall (130),
- said energizing retaining collar (3) having a threaded outer circumferential wall (302) to interact with said threaded portion (132);
- the energizing retaining collar (3) will hold the replaceable seat pocket assembly (10) in place in the body (0). Please see Fig. la and lb. Generally front sides are related to access and opening point which for a gate valve will be the gate opening. As seen from Figs. 7 and 8 the retaining collar (3) covers just a radially outer portion of the circular front (11) of the seat face ring (1). Together, the inner wall (300) of the energizing retaining collar ERC (3), the front (11) and the inner wall (100) of the RSF will form what is usually called the seat pocket.
- the ordinary seat pocket a machined cave in the valve body for capturing the valve seat, is formed by two main features; a ring shaped replaceable seat face ring (RSF) (1) and an energizing retaining collar (ERC) (3). Together they form a cavity inside the valve; the valve seat pocket (10), for the valve seat (2), which is replaceable, a replaceable seat pocket, RSP (10).
- the seat will be retained floatingly arranged, free to rotate inside the seat pocket and may be any general seats for the purpose of a gate valve.
- the energizing retaining collar ERC (3) is locked in place by threads (302) arranged to mate with threads (132) in a portion of the valve body facing towards the energizing retaining collar ERC (3), the replaceable seat pocket interface (13).
- the threads are a cost effective way to assemble and compress the two
- a gate valve for a replaceable seat pocket will generally be manufactured to receive the replaceable seat pocket (1, 3). Which means it will be prepared with the special designed features such as having a recess (13) forming the replaceable seat pocket interface around said flow bore (B) and being manufactured with a threaded portion (132) and other features for accommodation of different portions of different embodiments of the replaceable seat pocket.
- the replaceable seat pocket may be used for retrofit installations, which means that the valve body may post grinded and by that prepared for the special designed features such as having a recess (13) forming the replaceable seat pocket interface around said flow bore (B) and with the threaded portion (132) and further features for the accommodation of the different portions of the different embodiments of the replaceable seat pocket.
- a seal ring (20) is arranged between the replaceable seat face ring (1) and the rear wall (131) of said replaceable seat pocket interface recess (13).
- the replaceable seat pocket assembly (RSP) seals against the valve body with the seal ring (20) that is compressed, i.e.
- the energizing retaining collar (3) compresses the seal ring (20) between the ring-shaped replaceable seat face ring (RSF) (1) and the replaceable seat pocket interface recess (13) and compresses / energizes the seal ring (20) to prevent leakage.
- the valve body is always pressurized, during operation, i.e. in use, to upstream pressure.
- This seal ring provides a barrier against differential pressure and prevents flow between the replaceable seat pocket RSP (10) and the body.
- Floating gate valves seal on the downstream side and so this prevents flow from the body cavity and downstream toward a flange.
- the seal ring (20) will be a metal seal ring in an embodiment of the invention.
- the seal ring is arranged in a cavity formed by opposite arranged ring shaped grooves (16, 19) at said reverse side (12) of the seat face (1) and the rear wall (131) of said replaceable seat pocket interface recess (13) (respectively).
- An embodiment of the replaceable seat pocket according to the invention comprises an anti-rotation lock (21, 18, 17) for said replaceable seat pocket (10).
- the anti-rotation lock prevents the seat pocket face ring (SPF) (1) and seal ring (20) from rotating and thus wear to seat, retaining collar and seat pocket. Actually it is also preventing galling and other damage to the seal ring (20) and seal ring grooves ((16, 19) during installation.
- the anti-rotation lock (21, 18, 17) comprises at least one lock pin (21) arranged with a first end (22) in a hole (17) arranged in said reverse side (12) of said seat face ring (1), and an opposite second end (23) in an opposite arranged retaining hole (18) in the rear wall (131) of the seat pocket interface recess (13).
- more than one lock pin (21) may be used, for example a number of four, evenly distributed in 90 degree angles of the circumference of the seat pocket, or there may be six, eight, or more lock pins
- the lock pin and hole system may be in an embodiment be replaced by a slot/key design but this would not be as cost efficient as the pin system.
- Fig. 2b illustrating an embodiment with at least two lock pins arranged closer to the center of the ring shaped replaceable seat face ring RSF (1) aside of the ring seal.
- An embodiment of the replaceable seat pocket according to the invention comprises a seat pocket interface (13) comprising at least one collar landing rack/step (14) for the energizing collar (3) in the inward facing circumferential side wall (130) of said replaceable seat pocket interface recess (13). This forms a step for thread clearance but there may also be embodiments with a second step to allow for one or more trash seals.
- the replaceable seat face ring (1) is made of metal, such as steel, stainless steel, or Inconel.
- FIG. 20 An embodiment of the invention having a seal ring (20) comprising at least one through-hole (24) for said lock pin (21) and retaining holes (17,18) arranged within said ring shaped grooves (16,19). Please see Figs, lb, 6 and 7. This means an embodiment where the pin anti-rotation lock system is through the seal ring (20) and its
- the metal seal ring (20) cannot be allowed to rotate relative to either of its mating parts. Anti-rotation pins in both the replaceable seat face ring RSF (1) and the metal sealing ring (20) accomplishes this.
- the energizing retaining collar (3) comprises one or more trash seals (304, 305) to an adjacent surface as illustrated in Fig 7, arranged in one or more corresponding recesses of said energizing retainer collar (3).
- trash seals may be arranged in customized grooves in the energizing collar (3) surface facing towards the replaceable seat face ring or to the seat pocket interface wall.
- the seat (2) may also be arranged with a seal (200) between said seat and the replaceable seat (RSF) face ring (1). Please see Figs 1 and 3.
- a seat for use with the RSP may be off the shelf, but may also be one of a special design for the RSP according to any embodiments of the invention.
- a general design of a gate valve will have symmetric designs which means that an embodiment according to the invention is arranged for flow in either direction and comprises a replaceable seat pocket assembly (10) at both sides of said gate opening (GO).
- the energizing retaining collar (3) comprises one or more load slots (307) for engagement with a torque key (1004) of replaceable seat pocket assembly installation tool (1000), please see Fig. 12, Fig. 14, Fig. 16.
- the invention also is a replaceable seat pocket assembly installation tool (1000) for a replaceable seat pocket assembly (10) according to the first aspect of the invention and comprises an extension rod (1001) and a torque key (1004), wherein the extension rod (1001) having a first end (1001a) arranged for engagement with the torque key (1004), and a second end (1001b) with a bolt head (1006) for a torque exerting tool such as a hydraulic torque tool, the torque key (1004) being generally circular with a central engagement slot (1007) for engagement with the first end (1001a) of the extension rod, and two or more arc-shaped load dogs (1008) on an outer circumference of the torque key (1004), the load dogs (1008) arranged for engagement with one or more corresponding arc-
- the tool (1000), Torque Tool, is not assembled before the valve is opened and the gate (G) removed from the gate cavity (GC) and the flow bore (B) opened.
- the torque key and the extension rod shall be assembled when having been inserted through different paths of the valve body, i.e. through the gate cavity and the flow bore respectively.
- the Torque Tool (1000) is used to energize the seal ring (3) by exerting torque to tighten the energizing retaining collar (ERC) (3). This should advantageously be done after the replaceable seat pocket assembly is mounted in place and hand tightened, then insert the torque key (1004) into the ERC (3) through the gate cavity (GC) and the extension rod through the bore (B).
- the replaceable seat pocket assembly comprises one or more centralizing stabilizer guide discs (1003) for
- the torque key has an engagement slot (1007) that is shaped as a square hole and the first end (1001a) of the extension rod is a square drive.
- the slot and pin may be "torque", triangular, or hexagonal, or equivalent, while having sufficiently robust profiles for transferring the high torque required.
- the load dogs (1008) has an angled load plane (1009) in at least one end of the arc-shaped load dog (1008) and a corresponding load plane (309) in the corresponding load slots (307) are angled correspondingly to receive the load dogs (1008) and prevent slip out of the torque key (1004) when subject to torque.
- the required torque for energizing the seal (20) is extremely high (design max of 10000 ft-lbf [ 13558 Nm] so the torque key (1004) and the energizing retaining collar (ERC) (3) have been designed with the angled load planes (1009) to pull the tool and ring (3) together and prevent slip-out.
- the extension rod (1001) comprises ring shaped grooves (1013) for split retainer rings (1002) for the centralizing stabilizer guide discs (1003). This is an essential feature to have the guide discs really centralized and tight placed to prevent wiggling and skew.
- An advantage of the centralizing stabilizer guide discs is that the extension rod (1001) is kept perfectly axially aligned in the flow bore (B) when subject to torque, so as for avoiding undesired deviation away from the axially aligned position, which could otherwise damage the torque key (1004) or incur damage to the replaceable seat pocket assembly or the bore or the gate valve body. Significant high torque is required to energize the seat pocket assembly.
- the invention is also a replaceable seat pocket kit comprising an installation tool assembly (1000) according to the second aspect of the invention and a replaceable seat pocket assembly (10) according to the first aspect of the invention.
- the invention is also a method for installing a replaceable seat pocket assembly (10) in a gate valve comprising a gate valve body (0), a flow bore (B), a gate opening (GO), a gate (G), a gate cavity (GC), the valve body comprises a seat pocket interface recess (13) forming a receptacle around the flow bore (B) by the gate opening (GO), the recess (13) having a rear wall (131) and an inward facing circumferential side wall (130) with a threaded portion (132) close to the gate opening (GO), first operating through the gate cavity (GC), placing a seal ring (20) into a groove (19) in the rear wall (131) of the recess (13), placing a ring shaped replaceable seat face ring (1) with a front (11) and a reverse side (12), an outer circumference wall (101) and an inner circumference wall (100) with the reverse side (12) facing the seal ring (20) and the rear wall (131), arranging an energizing
- a torque tool (T) may be a hydraulic tool or any tool capable of exerting a high torque on the bolt head (1006) in order to screw in the ring (3) and energize the seal ring (20).
- the required torque for energizing the seal (20) is extremely high (design max of 10000 ft-lbf [13558 Nm]).
- Inserting lock pins (21) may be done ahead of placing the seal ring (20) into the groove (19) in order to place the seal ring and the anti-rotation pins in place at the same time and thus supporting the seal ring (20) before arranging the seat face ring (1).
- the specific sequence is up to the operator.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Details Of Valves (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2018/053634 WO2019224576A1 (en) | 2018-05-23 | 2018-05-23 | Replaceable seat pocket and tool kit |
CA3101303A CA3101303A1 (en) | 2018-05-23 | 2018-05-23 | Replaceable seat pocket and tool kit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2018/053634 WO2019224576A1 (en) | 2018-05-23 | 2018-05-23 | Replaceable seat pocket and tool kit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019224576A1 true WO2019224576A1 (en) | 2019-11-28 |
Family
ID=62842159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2018/053634 WO2019224576A1 (en) | 2018-05-23 | 2018-05-23 | Replaceable seat pocket and tool kit |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA3101303A1 (en) |
WO (1) | WO2019224576A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1241022A (en) * | 1967-11-02 | 1971-07-28 | Eldon Earl Hulsey | Valves with replaceable seat and seal assemblies |
US4313458A (en) * | 1979-11-19 | 1982-02-02 | Acf Industries, Incorporated | Restricted movement valve seats for an expanding gate valve |
US5586571A (en) * | 1994-09-15 | 1996-12-24 | Guillermo; Pedro M. | Apparatus and method for replacing the diverter valve assembly in a faucet |
US20030015681A1 (en) | 2001-07-23 | 2003-01-23 | Vijay Chatufale | Valve seal assemblies and methods |
US7526983B1 (en) * | 2007-02-27 | 2009-05-05 | Donald Gene Tipotsch | Tool for removing and installing a pop-up pool cleaning head assembly |
CN201900626U (en) * | 2010-12-30 | 2011-07-20 | 纽威石油设备(苏州)有限公司 | Special tool for valve assembly |
CN202922536U (en) * | 2012-11-27 | 2013-05-08 | 温州艾芬达百意伦智控系统有限公司 | Temperature control valve disassembling tool |
CN205310164U (en) * | 2015-12-29 | 2016-06-15 | 北方华锦化学工业集团有限公司 | Dismantle specialized tool of instrument governing valve disk seat |
-
2018
- 2018-05-23 WO PCT/IB2018/053634 patent/WO2019224576A1/en active Application Filing
- 2018-05-23 CA CA3101303A patent/CA3101303A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1241022A (en) * | 1967-11-02 | 1971-07-28 | Eldon Earl Hulsey | Valves with replaceable seat and seal assemblies |
US4313458A (en) * | 1979-11-19 | 1982-02-02 | Acf Industries, Incorporated | Restricted movement valve seats for an expanding gate valve |
US5586571A (en) * | 1994-09-15 | 1996-12-24 | Guillermo; Pedro M. | Apparatus and method for replacing the diverter valve assembly in a faucet |
US20030015681A1 (en) | 2001-07-23 | 2003-01-23 | Vijay Chatufale | Valve seal assemblies and methods |
US7526983B1 (en) * | 2007-02-27 | 2009-05-05 | Donald Gene Tipotsch | Tool for removing and installing a pop-up pool cleaning head assembly |
CN201900626U (en) * | 2010-12-30 | 2011-07-20 | 纽威石油设备(苏州)有限公司 | Special tool for valve assembly |
CN202922536U (en) * | 2012-11-27 | 2013-05-08 | 温州艾芬达百意伦智控系统有限公司 | Temperature control valve disassembling tool |
CN205310164U (en) * | 2015-12-29 | 2016-06-15 | 北方华锦化学工业集团有限公司 | Dismantle specialized tool of instrument governing valve disk seat |
Also Published As
Publication number | Publication date |
---|---|
CA3101303A1 (en) | 2019-11-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20210239220A1 (en) | Replaceable Seat Pocket Assembly | |
US20140174554A1 (en) | Robust Quick-Connection Mechanism For Use With Valve Actuator Assemblies and Linearly Actuated Valves and Related Methods | |
US20170089473A1 (en) | Sealing high pressure flow devices | |
US9989075B2 (en) | Working cylinder | |
CN210859883U (en) | High-strength ball valve | |
US20160069460A1 (en) | Ball valve stem retaining system | |
US10221651B2 (en) | Stem guide system | |
US4650225A (en) | Hydraulic holddown screw with mechanical retention means | |
US4272057A (en) | Valve and fastener therefor | |
US5715740A (en) | Combined piston rod alignment and sealing assembly for fluid actuator cylinders | |
EP2542804B1 (en) | Method and apparatus to couple valve shaft and closure member | |
US4356832A (en) | High pressure bonnetless valve | |
WO2019224576A1 (en) | Replaceable seat pocket and tool kit | |
CN107401532B (en) | Adapter for mounting a cylinder for a hydrodynamic linear actuator to a flow channel | |
US4072434A (en) | Hydraulic cylinder with concentrically maintained piston and rod | |
KR200485757Y1 (en) | Leakage prevention structure of butterfly valve | |
WO2024102377A2 (en) | Repairable valve | |
WO2018002642A1 (en) | Downhole coupling | |
US11326712B2 (en) | No-bolt valve assembly system | |
US20240200610A1 (en) | Shaft Connector Systems and Methods | |
EP4388229A1 (en) | Fluid valve | |
CN103925387A (en) | Valve, Energy Conversion Installation/fluid Distribution Network Including Such A Valve And Method Of Demounting Such A Valve | |
GB2215805A (en) | Displaceable valve assembly or pig |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18737975 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 3101303 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 29/04/2021) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18737975 Country of ref document: EP Kind code of ref document: A1 |