CN111197663A - Two-body type fixed ball valve and manufacturing method thereof - Google Patents
Two-body type fixed ball valve and manufacturing method thereof Download PDFInfo
- Publication number
- CN111197663A CN111197663A CN202010116717.8A CN202010116717A CN111197663A CN 111197663 A CN111197663 A CN 111197663A CN 202010116717 A CN202010116717 A CN 202010116717A CN 111197663 A CN111197663 A CN 111197663A
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve seat
- valve
- seat hole
- fixed ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a two-body type fixed ball valve which can effectively reduce the coaxiality deviation between a left valve seat hole and a right valve seat hole after a valve body is assembled, and a method for manufacturing the two-body type fixed ball valve. This fixed ball valve of two-body type sets up to be conical guide orientation face through the internal face with the connecting hole right-hand member, and set up the outer wall of go-between left end into with guide orientation face assorted positioning fitting surface, in left valve body and right valve body assembling process, can laminate each other by guide orientation face and positioning fitting surface and fix a position, the valve body assembling process mesopore has been avoided, the cumulative error influence of the straightness deviation of separately perpendicularity of axle clearance and first assembly terminal surface and second assembly terminal surface between left valve seat hole and the right valve seat hole, the axiality deviation between left valve seat hole and the right valve seat hole after the valve body assembly has effectively been reduced, make fixed ball valve of two-body type have good DBB function.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a two-body type fixed ball valve and a manufacturing method thereof.
Background
The ball valve is a valve which uses a ball body with a circular channel as an opening and closing part, and the ball body rotates for 90 degrees around the axis of a valve rod along with the rotation of the valve rod to realize the opening and closing purposes; two-piece fixed ball valves are a common form of ball valve. For a two-body type fixed ball valve for oil and gas pipelines, it is very important to have good dbb (double Block and blank) function. The popular explanation for the DBB function is: when the valve is in the closed position, pressure is applied to two ends of the valve simultaneously, and the left valve seat and the right valve seat of the valve have good sealing performance. When the DBB function of the valve is tested, a blowdown hole or an exhaust hole of a middle cavity of the valve is opened, and if no medium continuously flows out of the blowdown hole or the exhaust hole, the DBB function of the valve is complete; if the medium flows out continuously, the DBB function of the valve is failed. Therefore, the DBB function of the two-body type fixed ball valve can help a valve user to monitor whether the sealing performance of the valve is good or not on line, and the valve has important practical significance for use and maintenance of the valve.
Practice shows that the main factors influencing the DBB function of the two-body type fixed ball valve depend on the coaxiality between the valve seat hole in the left valve body and the valve seat hole in the right valve body after assembly; the smaller the coaxiality deviation is, the better the DBB function of the valve is; conversely, the poorer the DBB function.
Referring to fig. 1 and 2, a conventional two-piece fixed ball valve includes a top cap 100, a valve body 200, a valve core 300, and a valve stem 400, where the valve body 200 includes a left valve body 210 having a left valve seat hole 211 and a right valve body 220 having a right valve seat hole 221, a first annular assembling end surface 222 is disposed at a left end of the right valve body 220, a connection ring 223 is disposed on the first assembling end surface 222, a second assembling end surface 212 corresponding to the first assembling end surface 222 is disposed on the left valve body 210, a connection hole 213 is disposed on the second assembling end surface 212 and allows the connection ring 223 to be inserted into, the right valve body 220 is inserted into the connection hole 213 through the connection ring 223 and is positioned and matched with the left valve body 210 and connected together through a connection member 230, and an O-ring 240 and a winding gasket 250 are disposed between the first assembling end; the valve body 300 includes a left valve seat 310 provided in the left valve seat hole 211, a right valve seat 320 provided in the right valve seat hole 221, and a ball 330 rotatably provided between the left valve seat 310 and the right valve seat 320; the valve stem 400 is rotatably coupled to the left valve body 210 through the top cap 100, the lower end of the valve stem 400 is coupled to the ball 330, and the upper end of the valve stem 400 is located outside the valve body 200.
In the existing two-body type fixed ball valve, a left valve body and a right valve body are in clearance fit with each other through holes and shafts, and a first assembly end face and a second assembly end face are tightly pressed and attached through connecting pieces such as bolts; although the coaxiality of the left valve seat hole and the connecting ring is easier to ensure for the small-size valve body, the coaxiality of the right valve seat hole and the connecting ring is also easier to ensure, and the purpose of ensuring the coaxiality between the valve seat hole in the left valve body and the valve seat hole in the right valve seat after assembly is further achieved; however, this structure still has the following disadvantages: 1) a gap exists between the connecting part hole and the shaft, and the larger the valve is, the larger the gap is; 2) the second assembling end surface of the left valve body and the first assembling end surface of the right valve body are required to be perpendicular to the hole and the shaft respectively, but the larger the valve is, the more difficult the perpendicularity of the assembling end surfaces is to ensure. Both of which directly affect the concentricity between the valve seat bore in the left valve body and the valve seat bore in the right valve seat after assembly of the valve. In production practice, DBB function tests are carried out on the same batch of valves with the same specification, and some valves have good DBB functions and some valves have poor DBB functions. Even if the same valve is disassembled and then reassembled, the DBB function is degraded.
Disclosure of Invention
The invention aims to solve the technical problem of providing a two-body type fixed ball valve which can effectively reduce the coaxiality deviation between a left valve seat hole and a right valve seat hole after a valve body is assembled.
The technical scheme adopted by the invention for solving the technical problems is as follows: the two-body type fixed ball valve comprises a valve body, wherein the valve body comprises a left valve body with a left valve seat hole and a right valve body with a right valve seat hole; the left end of the right valve body is provided with an annular first assembling end face, the first assembling end face is provided with a connecting ring coaxial with the right valve seat hole, the left valve body is provided with a second assembling end face corresponding to the first assembling end face, and the second assembling end face is provided with a connecting hole coaxial with the left valve seat hole; the inner wall surface of the right end of the connecting hole is a conical guide positioning surface, and the outer wall surface of the left end of the connecting ring is a positioning matching surface matched with the guide positioning surface; the connecting ring is embedded into the connecting hole and is attached to the guide positioning surface through the positioning matching surface, so that the right valve body and the left valve body are positioned and matched together.
Furthermore, a gap t is reserved between the first assembling end face and the second assembling end face, and t is larger than or equal to 1mm and smaller than or equal to 2 mm.
Further, the taper of the guide positioning surface is 30-60 degrees.
Further, the valve body further comprises a connecting piece, and the left valve body is fixedly connected with the right valve body through the connecting piece.
Further, the connecting piece passes first assembly end face and second assembly end face and is connected left valve body and right valve body together.
Further, the number of the connecting pieces is at least four, and the connecting pieces are evenly distributed along the circumferential span of the first assembling end face.
Further, the valve body also comprises an O-shaped sealing ring and a winding gasket; the O-shaped sealing ring is arranged on the connecting ring and clamped between the guide positioning surface and the first assembling end surface, and the winding gasket is arranged between the first assembling end surface and the second assembling end surface.
The invention also provides a manufacturing method of the two-body type fixed ball valve, which is used for manufacturing any one of the two-body type fixed ball valves and comprises a left valve seat hole processing step and a right valve seat hole processing step;
a left valve seat hole processing step: after the left valve body is clamped and aligned on a machine tool, a left valve seat hole and a guide positioning surface are respectively processed on the premise that the clamping position of the left valve body is unchanged and the clamping position of a cutter is unchanged;
and (3) processing a right valve seat hole: after the right valve body is clamped and aligned on a machine tool, the right valve seat hole and the positioning matching surface are respectively machined on the premise that the clamping position of the right valve body is unchanged and the clamping position of the cutter is unchanged, and the taper of the positioning matching surface is consistent with that of the guiding positioning surface.
The invention has the beneficial effects that: through setting up the internal face with the connecting hole right-hand member to be conical direction locating surface, and set up the outer wall face of go-between left end into with direction locating surface assorted location fitting surface, in left valve body and right valve body assembling process, can laminate each other by direction locating surface and location fitting surface and fix a position, the valve body assembling process mesopore has been avoided, the cumulative error influence of the straightness deviation of hanging down separately of axle clearance and first assembly terminal surface and second assembly terminal surface between left valve seat hole and the right valve seat hole, the axiality deviation between left valve seat hole and the right valve seat hole after the valve body assembly has effectively been reduced, make two style fixed ball valves have good DBB function. In addition, the O-shaped sealing ring is arranged on the connecting ring and clamped between the guide positioning surface and the first assembling end surface, and the winding gasket is arranged between the first assembling end surface and the second assembling end surface, so that the clamping and sealing of a plurality of sealing surfaces are realized, and the reliability of the DBB function realized by the two-body type fixed ball valve is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a two-body type fixed ball valve;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic diagram of an embodiment of the two-piece fixed ball valve of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at II;
labeled as: the valve comprises a top cover 100, a valve body 200, a left valve body 210, a left valve seat hole 211, a second assembly end surface 212, a connecting hole 213, a guide positioning surface 214, a right valve body 220, a right valve seat hole 221, a first assembly end surface 222, a connecting ring 223, a positioning matching surface 224, a connecting piece 230, an O-shaped sealing ring 240, a winding gasket 250, a valve core 300, a left valve seat 310, a right valve seat 320, a ball 330 and a valve rod 400.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 3 and 4, the two-piece fixed ball valve includes a valve body 200, wherein the valve body 200 includes a left valve body 210 having a left valve seat hole 211 and a right valve body 220 having a right valve seat hole 221; the left end of the right valve body 220 is provided with an annular first assembling end surface 222, the first assembling end surface 222 is provided with a connecting ring 223 coaxial with the right valve seat hole 221, the left valve body 210 is provided with a second assembling end surface 212 corresponding to the first assembling end surface 222, and the second assembling end surface 212 is provided with a connecting hole 213 coaxial with the left valve seat hole 211; the inner wall surface of the right end of the connecting hole 213 is a conical guide positioning surface 214, and the outer wall surface of the left end of the connecting ring 223 is a positioning matching surface 224 matched with the guide positioning surface 214; the connecting ring 223 is inserted into the connecting hole 213 and is engaged with the guiding and positioning surface 214 through the positioning and mating surface 224, so that the right valve body 220 and the left valve body 210 are positioned and mated together.
In the process of assembling the left valve body 210 and the right valve body 220 of the two-body type fixed ball valve together, the connecting ring 223 is firstly embedded into the connecting hole 213, then the guide positioning surface 214 and the positioning matching surface 224 are attached to each other, positioning is realized by utilizing the automatic centering principle of the matching conical surface, the influence of accumulated errors caused by uncertain factors such as respective verticality deviation of a hole, an axial gap and the first assembling end surface 222 and the second assembling end surface 212 in the assembling process of the valve body 200 is avoided, the left valve seat hole 211 and the right valve seat hole 221 can be ensured to have better coaxiality (namely the coaxiality deviation is smaller), and the two-body type fixed ball valve can realize a good DBB function.
The directions of the flow passage openings at the two ends of the two-body type fixed ball valve are respectively taken as the left direction and the right direction, for example: in fig. 1 and 3, the left-end flow port is oriented in the left direction, and the right-end flow port is oriented in the right direction.
The guide positioning surface 214 is a conical inner annular surface coaxial with the connecting hole 213, that is, the guide positioning surface 214 is coaxial with the left valve seat hole 211; the diameter of the right end of the guiding and positioning surface 214 is larger than that of the left end thereof, and the guiding and positioning surface is mainly used for guiding the connecting ring 223 and positioning the connecting ring in cooperation with the positioning and matching surface 224; in order to achieve better matching and positioning effects, the taper of the guide positioning surface 214 is preferably 30-60 °. The locating mating surface 224 is a conical outer annular surface coaxial with the connecting ring 223, i.e., the locating mating surface 224 is coaxial with the right valve seat hole 221; the positioning engagement surface 224 has a taper equal to the taper of the guide positioning surface 214 and is primarily used to co-axially position the left and right valve seat bores 211 and 221 in cooperation with the guide positioning surface 214.
Preferably, as shown in FIG. 4, a gap t is left between the first assembling end face 222 and the second assembling end face 212, where t is greater than or equal to 1mm and less than or equal to 2 mm. This clearance t is the design reserve volume, and it can guarantee that in the assembling process, the assembly location can be accomplished in the laminating of direction locating surface 214 and location fitting surface 224 first.
Specifically, as shown in fig. 3, the valve body 200 further includes a connecting member 230, and the left valve body 210 is fixedly connected to the right valve body 220 through the connecting member 230.
In order to secure the sealing effect of the two-piece fixed ball valve, the left valve body 210 and the right valve body 220 are connected together by the connection member 230 passing through the first and second fitting end surfaces 222 and 212.
In order to enhance the connection fixing effect, it is preferable that at least four connection members 230 are connected, and the connection members 230 are uniformly distributed along the circumferential span of the first fitting end surface 222. Still preferably, the number of the connection members 230 is an even number.
Preferably, as further shown in fig. 4, the valve body 200 further comprises an O-ring seal 240 and a winding gasket 250; the O-ring 240 is disposed on the connection ring 223 and clamped between the guide positioning surface 214 and the first mounting end surface 222, and the winding shim 250 is disposed between the first mounting end surface 222 and the second mounting end surface 212. So set up, can form first sealed way between direction locating surface 214 and first assembly terminal surface 222 to form the second sealed way between first assembly terminal surface 222 and second assembly terminal surface 212, improved the reliability that this two-body fixed ball valve realized the DBB function greatly.
The manufacturing approach of the fixed ball valve of the two-body type, is used for making any one above-mentioned two-body type to fix the ball valve, it includes the hole processing step of the left valve seat and hole processing step of the right valve seat;
a left valve seat hole processing step: after the left valve body 210 is clamped and aligned on a machine tool, the left valve seat hole 211 and the guide positioning surface 214 are respectively processed on the premise that the clamping position of the left valve body 210 is unchanged and the clamping position of the cutter is unchanged;
and (3) processing a right valve seat hole: after the right valve body 220 is clamped and aligned on a machine tool, the right valve seat hole 221 and the positioning matching surface 224 are respectively machined on the premise that the clamping position of the right valve body 220 is not changed and the clamping position of the cutter is not changed by the same cutter, and the taper of the positioning matching surface 224 is ensured to be consistent with that of the guiding and positioning surface 214.
In the manufacturing method of the two-body type fixed ball valve, in the processing step of the left valve seat hole, the left valve seat hole 211 and the guide positioning surface 214 are respectively processed on the premise that the clamping position of the left valve body 210 is not changed (namely one-time clamping) and the clamping position of the cutter is not changed, so that the coaxiality of the left valve seat hole 211 and the guide positioning surface 214 can be ensured to the maximum extent; meanwhile, in the step of processing the right valve seat hole, the right valve seat hole 221 and the positioning matching surface 224 are respectively processed on the premise that the clamping position of the right valve body 220 is unchanged and the clamping position of the cutter is unchanged, so that the coaxiality of the right valve seat hole 221 and the positioning matching surface 224 can be ensured to the maximum extent; therefore, the influence of uncertain factors on the coaxiality of the left valve seat hole 211 and the right valve seat hole 221 after the valve body 200 is assembled in the machining process can be effectively reduced.
In order to ensure the consistency between the taper of the positioning and matching surface 224 and the taper of the guiding and positioning surface 214, when the machine tool is a non-numerical control machining device, the same profile modeling or calibrated profile modeling may be used to machine the guiding and positioning surface 214 and the positioning and matching surface 224; when the adopted machine tool is a numerical control machining device, the consistency of the conicity of the two matched conical surfaces is ensured through effective programming and the machining precision of the device.
Claims (8)
1. A two-piece, fixed ball valve comprising a valve body (200), the valve body (200) comprising a left valve body (210) having a left valve seat bore (211) and a right valve body (220) having a right valve seat bore (221); the left end of the right valve body (220) is provided with an annular first assembling end face (222), the first assembling end face (222) is provided with a connecting ring (223) coaxial with the right valve seat hole (221), the left valve body (210) is provided with a second assembling end face (212) corresponding to the first assembling end face (222), and the second assembling end face (212) is provided with a connecting hole (213) coaxial with the left valve seat hole (211); the method is characterized in that: the inner wall surface of the right end of the connecting hole (213) is a conical guide positioning surface (214), and the outer wall surface of the left end of the connecting ring (223) is a positioning matching surface (224) matched with the guide positioning surface (214); the connecting ring (223) is embedded into the connecting hole (213) and attached to the guide positioning surface (214) through the positioning and matching surface (224), so that the right valve body (220) and the left valve body (210) are positioned and matched together.
2. A two-piece fixed ball valve as claimed in claim 1, wherein: a gap t is reserved between the first assembling end face (222) and the second assembling end face (212), and t is more than or equal to 1mm and less than or equal to 2 mm.
3. A two-piece fixed ball valve as claimed in claim 1, wherein: the taper of the guide positioning surface (214) is 30-60 degrees.
4. A two-piece fixed ball valve as claimed in any one of claims 1 to 3, wherein: the valve body (200) further comprises a connecting piece (230), and the left valve body (210) is fixedly connected with the right valve body (220) through the connecting piece (230).
5. The two-piece fixed ball valve of claim 4, wherein: the connecting piece (230) penetrates through the first assembling end face (222) and the second assembling end face (212) to connect the left valve body (210) and the right valve body (220) together.
6. The two-piece fixed ball valve of claim 5, wherein: the connecting pieces (230) are at least four and are uniformly distributed along the circumferential span of the first assembling end face (222).
7. A two-piece fixed ball valve as claimed in claim 5 or 6, wherein: the valve body (200) further comprises an O-shaped sealing ring (240) and a winding gasket (250); the O-shaped sealing ring (240) is arranged on the connecting ring (223) and clamped between the guide positioning surface (214) and the first assembling end surface (222), and the winding gasket (250) is arranged between the first assembling end surface (222) and the second assembling end surface (212).
8. A method of manufacturing a two-piece fixed ball valve for manufacturing a two-piece fixed ball valve according to any one of claims 1 to 7, characterized in that: comprises a left valve seat hole processing step and a right valve seat hole processing step;
a left valve seat hole processing step: after the left valve body (210) is clamped and aligned on a machine tool, a left valve seat hole (211) and a guide positioning surface (214) are respectively processed on the premise that the clamping position of the left valve body (210) is unchanged and the clamping position of the cutter is unchanged;
and (3) processing a right valve seat hole: after the right valve body (220) is clamped and aligned on a machine tool, a right valve seat hole (221) and a positioning matching surface (224) are respectively machined on the premise that the clamping position of the right valve body (220) is not changed and the clamping position of the cutter is not changed, and the taper of the positioning matching surface (224) is consistent with that of the guiding positioning surface (214).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010116717.8A CN111197663B (en) | 2020-02-25 | 2020-02-25 | Two-body type fixed ball valve and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010116717.8A CN111197663B (en) | 2020-02-25 | 2020-02-25 | Two-body type fixed ball valve and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111197663A true CN111197663A (en) | 2020-05-26 |
| CN111197663B CN111197663B (en) | 2022-03-22 |
Family
ID=70745219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010116717.8A Active CN111197663B (en) | 2020-02-25 | 2020-02-25 | Two-body type fixed ball valve and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111197663B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660591A (en) * | 1986-06-26 | 1987-04-28 | Whitey Co. | Ball valve and seat assembly |
| EA200100843A1 (en) * | 1999-02-11 | 2002-02-28 | Инголф Клюде | BALL VALVE |
| CN201475406U (en) * | 2009-09-02 | 2010-05-19 | 福建捷斯特阀门制造有限公司 | Copper ball valve |
| JP2012002355A (en) * | 2010-05-20 | 2012-01-05 | Kitz Corp | Rotary valve |
| CN102996844A (en) * | 2012-12-20 | 2013-03-27 | 四川精控阀门制造有限公司 | Limiting ball valve |
| US20160153574A1 (en) * | 2014-11-27 | 2016-06-02 | Rotex Manufacturers And Engineers Private Limited | Ball valve with an improved seat ring |
| CN205401789U (en) * | 2016-02-15 | 2016-07-27 | 芜湖市金贸流体科技股份有限公司 | Electric ball valve |
| CN205978583U (en) * | 2016-08-31 | 2017-02-22 | 嘉兴五洲阀门有限公司 | Ball valve that valve seat seal performance is good |
| CN206036290U (en) * | 2016-08-31 | 2017-03-22 | 广东恒基金属制品实业有限公司 | Soft or hard double containment ball valve |
| CN107385321A (en) * | 2017-06-05 | 2017-11-24 | 成都莱达机械电子有限公司 | A kind of relief valve body preparation method |
| CN207229815U (en) * | 2017-08-24 | 2018-04-13 | 浙江威腾阀门有限公司 | Closed type controllable ball valve |
| CN207437821U (en) * | 2017-08-10 | 2018-06-01 | 西尼（南京）阀门机械有限公司 | A kind of manual fixing ball valve of double-body bike |
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN110052793A (en) * | 2019-05-14 | 2019-07-26 | 陈立国 | A kind of processing method of butterfly type valve structure |
| JP2020143712A (en) * | 2019-03-05 | 2020-09-10 | 株式会社栗本鐵工所 | Eccentric rotary valve |
-
2020
- 2020-02-25 CN CN202010116717.8A patent/CN111197663B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660591A (en) * | 1986-06-26 | 1987-04-28 | Whitey Co. | Ball valve and seat assembly |
| EA200100843A1 (en) * | 1999-02-11 | 2002-02-28 | Инголф Клюде | BALL VALVE |
| CN201475406U (en) * | 2009-09-02 | 2010-05-19 | 福建捷斯特阀门制造有限公司 | Copper ball valve |
| JP2012002355A (en) * | 2010-05-20 | 2012-01-05 | Kitz Corp | Rotary valve |
| CN102996844A (en) * | 2012-12-20 | 2013-03-27 | 四川精控阀门制造有限公司 | Limiting ball valve |
| US20160153574A1 (en) * | 2014-11-27 | 2016-06-02 | Rotex Manufacturers And Engineers Private Limited | Ball valve with an improved seat ring |
| CN205401789U (en) * | 2016-02-15 | 2016-07-27 | 芜湖市金贸流体科技股份有限公司 | Electric ball valve |
| CN205978583U (en) * | 2016-08-31 | 2017-02-22 | 嘉兴五洲阀门有限公司 | Ball valve that valve seat seal performance is good |
| CN206036290U (en) * | 2016-08-31 | 2017-03-22 | 广东恒基金属制品实业有限公司 | Soft or hard double containment ball valve |
| CN107385321A (en) * | 2017-06-05 | 2017-11-24 | 成都莱达机械电子有限公司 | A kind of relief valve body preparation method |
| CN207437821U (en) * | 2017-08-10 | 2018-06-01 | 西尼（南京）阀门机械有限公司 | A kind of manual fixing ball valve of double-body bike |
| CN207229815U (en) * | 2017-08-24 | 2018-04-13 | 浙江威腾阀门有限公司 | Closed type controllable ball valve |
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| JP2020143712A (en) * | 2019-03-05 | 2020-09-10 | 株式会社栗本鐵工所 | Eccentric rotary valve |
| CN110052793A (en) * | 2019-05-14 | 2019-07-26 | 陈立国 | A kind of processing method of butterfly type valve structure |
Non-Patent Citations (1)
| Title |
|---|
| 戴均辉: "二片式黄铜球阀阀体、阀盖联接的金属密封探讨", 《通用机械》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111197663B (en) | 2022-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210372066U (en) | Electronic expansion valve | |
| CN111197663B (en) | Two-body type fixed ball valve and manufacturing method thereof | |
| KR102034775B1 (en) | Valve | |
| CN104929574A (en) | Dual-channel different-direction joint-control check valve | |
| CN107598590B (en) | Precise tool for machining valve sleeve hole and valve sleeve machining equipment | |
| CN101900142A (en) | Manufacturing method of hydraulic integrated valve block | |
| WO2021057019A1 (en) | Electronic expansion valve | |
| CN219954238U (en) | Electronic expansion valve | |
| CN216200585U (en) | Flow regulating valve | |
| CN204532246U (en) | The incorgruous joint control ball-and-seat of binary channels | |
| CN206092075U (en) | Turbo charger's turbine and axle assembly | |
| CN104832725A (en) | Rotary gas/liquid distribution structure for rotary table | |
| CN109185497B (en) | Pressure-limiting differential type six-way switching valve for conveying fluid | |
| CN103046898B (en) | Novel valve needle of pressure control drilling throttle valve | |
| CN102563091A (en) | Ultrahigh pressure detection stop valve | |
| CN114562481B (en) | Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process | |
| CN213541497U (en) | Pressure equalizing device for inner cavity of packing box of valve rod of control valve | |
| CN220286488U (en) | Clamping ball valve | |
| CN204985816U (en) | Valve | |
| CN220838255U (en) | Processing device for ball body of ball valve | |
| CN112362209B (en) | Stator assembly for hydraulic dynamometer and stator ring machining method | |
| CN114235383A (en) | Valve core and valve sleeve precise combination machining detection tool and detection method | |
| CN221038468U (en) | Butt welding type valve body test fixture | |
| CN215673083U (en) | Split tangential pin | |
| CN201462122U (en) | Taper face pressure-reducing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |