CN110131437B - Metal sealing floating ball valve - Google Patents
Metal sealing floating ball valve Download PDFInfo
- Publication number
- CN110131437B CN110131437B CN201910417127.6A CN201910417127A CN110131437B CN 110131437 B CN110131437 B CN 110131437B CN 201910417127 A CN201910417127 A CN 201910417127A CN 110131437 B CN110131437 B CN 110131437B
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- valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—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
- 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
- F16K5/0626—Easy mounting or dismounting 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a metal sealing floating ball valve which comprises a valve body, wherein a valve ball is arranged in the middle of an inner cavity of the valve body, valve ball holes are formed in two sides of the valve ball, a top cap is arranged at the top end of the valve ball, a bottom cap is arranged at the bottom end of the valve ball, a top cover is arranged at the top end of the valve body, an adjusting handle is arranged at the top end of a screw rod, an electric motor is arranged on one side of the top end of a transmission box, a transmission shaft is arranged at one end of the electric motor, and a second transmission gear is arranged on the transmission shaft. The top cap and the bottom cap at two ends of the valve ball are connected through the connecting strips, and the connecting strips have certain toughness, so that the positions of the top cap and the bottom cap relative to the valve ball can float, when a medium enters the valve ball, the two ends of the top cap and the bottom cap can be expanded under the action of medium pressure, and the two ends of the top cap and the bottom cap are more tightly attached to the inner cavity wall of the valve body.
Description
Technical Field
The invention relates to the technical field of floating ball valves, in particular to a metal sealing floating ball valve.
Background
The floating ball valve controls medium circulation in the valve body through the ball body, the ball body of the ball valve is floating, under the action of medium pressure, the ball body can generate certain displacement and is tightly pressed on a sealing surface of an outlet end to ensure the outlet end to be sealed, the floating ball valve is simple in structure and good in sealing performance, but the load of a working medium borne by the ball body is completely transmitted to an outlet sealing ring, so whether a sealing ring material can bear the working load of the ball body medium is considered, the ball body can be deviated when being impacted by high pressure, the structure is generally used for a medium-low pressure ball valve, the ball valve uses the ball body with a circular through hole as an opening and closing piece, the ball body rotates around the center of a valve rod by 0-90 degrees under the driving of the valve rod to complete opening and closing functions, the floating ball valve has the characteristics of compact structure and rapid opening and closing, the valve can be closed by rotating by 90 degrees, pipeline, the flow resistance is small and the flow capacity is large.
The floating ball valve in the current stage has many defects, for example, the sealing performance of the ball body and the inner cavity of the valve body is poor, the problem that the inner wall is abraded due to long-term use, the sealing performance is reduced, the control is inconvenient, and the position of the ball body cannot be adjusted.
Disclosure of Invention
The invention aims to provide a metal sealing floating ball valve, which solves the problems that the sealing performance between a ball body and an inner cavity of a valve body is poor, the inner wall is abraded due to long-term use cannot be avoided, the sealing performance is reduced, the control is inconvenient, the position of the ball body cannot be adjusted and the like in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a metal sealing floating ball valve comprises a valve body, wherein a valve ball is mounted in the middle of an inner cavity of the valve body, valve ball holes are formed in two sides of the valve ball, a top cap is mounted at the top end of the valve ball, a bottom cap is mounted at the bottom end of the valve ball, a terminal surface is arranged at the top end of the top cap, a fixing clip is mounted in the middle of the top end of the terminal surface in a welding mode, an embedding hole is formed in the middle of the top end of the fixing clip, a top cover is mounted at the top end of the valve body, a transmission case is mounted at the top of the top cover through a middle flange, a valve rod is mounted on one side of the inside of the transmission case, a first transmission gear is mounted on the valve rod, a screw rod is mounted inside the valve rod, an upper thread is arranged at a position close to the screw rod, an adjusting handle is, and a second transmission gear is arranged on the transmission shaft.
Preferably, the top of transmission case is installed the axle sleeve, and the inside of axle sleeve leans on upper position department to be provided with the internal thread, and the screw rod is through last screw thread and axle sleeve screw drive on it, the inside of axle sleeve leans on lower position department to be provided with the shaft hole, and the top of valve rod is connected with the shaft hole rotation of axle sleeve inner chamber.
Preferably, a fixing head is installed at one end of the valve rod, and a waist hole is formed in the fixing head.
Preferably, the fixing head is fixedly connected with the fixing clip through a bolt, the bolt is fixed on the waist hole, and the bolt is in sliding connection with the inner side wall of the waist hole.
Preferably, the valve ball and the top cap and the valve ball and the bottom cap are connected through connecting strips, and the top cap and the bottom cap are arranged at two ends of the valve ball in a mutually symmetrical mode.
Preferably, the embedding head is installed to the one end of screw rod, and the embedding head inlays with the inlaying hole in the middle part of fixing clip and is connected.
Preferably, the inner side wall of the valve body is provided with a wear-resistant layer, and the wear-resistant layer is coated on the wall of the inner cavity of the valve body through glue solution.
Preferably, the transmission shaft is arranged in the transmission box, and the second transmission gear on the transmission shaft is in gear transmission connection with the first transmission gear.
Compared with the prior art, the invention has the beneficial effects that:
1. the top cap and the bottom cap at two ends of the valve ball are connected through the connecting strips, and the connecting strips have certain toughness, so that the positions of the top cap and the bottom cap relative to the valve ball can float;
2. the fixing head is arranged at the bottom end of the valve rod, the waist hole is formed in the fixing head, the end face is arranged in the middle of the top end of the top cap, the fixing clamp is arranged in the middle of the top end of the end face and is conveniently fixed with the fixing head through the fixing clamp, the fixing head and the valve ball can be adjusted in fixed height through the waist hole design, the mounting and dismounting are convenient, and the flexibility is improved;
3. the valve rod is of a hollow structure, the screw rod is arranged in the valve rod, the embedding head is arranged at one end of the screw rod and connected with the embedding hole in the middle of the fixing clamp, and the screw rod is in transmission with the shaft sleeve screw rod at the top end of the valve rod, so that the screw rod can apply pressure to the valve ball, the valve ball can be tightly pressed and fixed in the inner cavity of the valve body, the rotation of the valve ball is avoided, the sealing performance of the valve ball can be improved, and the functionality of the device is improved.
Drawings
FIG. 1 is a schematic structural view of a metal-sealed floating ball valve according to the present invention;
FIG. 2 is a schematic structural view of the transmission case of the present invention;
FIG. 3 is a side view of the valve stem of the present invention;
FIG. 4 is a top view of the valve ball of the present invention;
fig. 5 is a front view of the valve ball of the present invention.
In the figure: 1. adjusting the handle; 2. a screw; 3. screwing; 4. a first drive gear; 5. a middle flange; 6. a wear layer; 7. a valve ball; 8. a valve body; 9. an electric motor; 10. a transmission case; 11. a drive shaft; 12. a second transmission gear; 13. a top cover; 14. a valve stem; 15. a valve ball bore; 16. an end face; 17. fixing the card; 18. embedding holes; 19. a fixed head; 20. a waist hole; 21. a top cap; 22. a connecting strip; 23. a bottom cap; 24. and embedding the head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: a metal sealing floating ball valve comprises a valve body 8, a valve ball 7 is arranged in the middle of an inner cavity of the valve body 8, the valve ball 7 is used for sealing the inner cavity of the valve body 8 and controlling whether the inner cavity of the valve body 8 circulates or not, so as to control the opening and closing of the valve body 8, valve ball holes 15 are formed in two sides of the valve ball 7 and used for conveying fluid, a top cap 21 is arranged at the top end of the valve ball 7, the top cap 21 and a bottom cap 23 are used for combining the valve ball 7, two ends of the valve ball 7 are respectively sealed and controlled with two ends of the inner cavity of the valve body 8, the bottom cap 23 is arranged at the bottom end of the valve ball 7, an end face 16 is arranged at the top end of the top cap 21, a fixing clamp 17 is arranged in the middle of the top end of the end face 16 in a welding mode, the fixing clamp 17 is conveniently fixedly connected with a fixing head 19 at one end of a valve rod 14 through a bolt, an embedding hole, a top cover 13 is arranged at the top end of the valve body 8, a transmission case 10 is arranged at the top of the top cover 13 through a middle flange 5, the transmission case 10 is used for installing a gear transmission mechanism, a valve rod 14 is arranged at one side inside the transmission case 10, the valve rod 14 is used for driving the valve ball 7 to rotate, thereby the control valve body 8 open and close, install first transmission gear 4 on the valve rod 14, first transmission gear 4 is used for receiving the transmission power of second transmission gear 12 on the transmission shaft 11, make it drive valve rod 14 and rotate, the internally mounted of valve rod 14 has screw rod 2, screw rod 2 is used for exerting pressure control to valve ball 7, it is provided with screw thread 3 to lean on last position department on screw rod 2, adjusting handle 1 is installed on the top of screw rod 2, electric motor 9 is installed to top one side of transmission case 10, electric motor 9 is used for the automatic transmission shaft 11 rotation of driving, transmission shaft 11 is installed to electric motor 9's one end, install second transmission gear 12 on the transmission shaft 11.
Further, the axle sleeve is installed at the top of transmission case 10, and the inside of axle sleeve leans on upper position department to be provided with the internal thread, and screw rod 2 is through last screw thread 3 and axle sleeve screw drive on it, the inside of axle sleeve leans on lower position department to be provided with the shaft hole, and the top of valve rod 14 is connected with the shaft hole rotation of axle sleeve inner chamber, screw rod 2 can carry out screw drive with the axle sleeve through this kind of design, thereby control screw rod 2 carries out lift adjustment in valve rod 14, make it exert pressure the control to valve ball 7, and make things convenient for the top of valve rod 14 to rotate in the shaft hole of its inboard through the axle sleeve.
Further, a fixing head 19 is installed at one end of the valve rod 14, and a waist hole 20 is formed in the fixing head 19, so that the fixing head 19 and the waist hole 20 thereon can be conveniently connected with the fixing clip 17 through a bolt.
Further, the fixing head 19 is fixedly connected with the fixing clip 17 through a bolt, the bolt is fixed on the waist hole 20 and is in sliding connection with the inner side wall of the waist hole 20, and the valve ball 7 can float up and down in the connection mode of the fixing clip 17 and the waist hole 20 through the design.
Furthermore, the valve ball 7 is connected with the top cap 21 and the valve ball 7 is connected with the bottom cap 23 through the connecting strips 22, the top cap 21 and the bottom cap 23 are arranged at two ends of the valve ball 7 in a mutually symmetrical mode, the top cap 21 and the bottom cap 23 can expand relative to the position of the valve ball 7 through the connecting strips 22, the outer wall of the top cap 21 and the bottom cap 23 is tightly attached to the inner wall of the inner cavity of the valve body 8 under the action of fluid pressure, and the sealing effect is improved.
Further, an embedding head 24 is installed at one end of the screw rod 2, the embedding head 24 is connected with the embedding hole 18 in the middle of the fixing clamp 17 in an embedding mode, and the bottom end of the screw rod 2 is connected with the top of the valve ball 7 conveniently through the embedding head 24.
Further, the inside wall of valve body 8 is provided with wearing layer 6, and wearing layer 6 passes through the glue solution coating on 8 inner chamber walls of valve body, can improve the life of 8 inner chamber walls of valve body through wearing layer 6.
Further, the transmission shaft 11 is installed in the transmission case 10, and the second transmission gear 12 on the transmission shaft 11 is in gear transmission connection with the first transmission gear 4, so that the transmission shaft 11 conveniently transmits power to the valve rod 14 through the design, and the valve rod 14 is driven to synchronously rotate by the transmission shaft.
The working principle is as follows: when the device is used, the electric motor 9 controls the transmission shaft 11 to rotate, the transmission shaft 11 is in gear transmission with the first transmission gear 4 through the second transmission gear 12 on the transmission shaft, the transmission shaft drives the valve rod 14 to rotate, the valve rod 14 rotates to drive the valve ball 7 to rotate, the valve ball 7 controls whether the valve ball hole 15 on the transmission shaft is communicated with the inner cavity of the valve body 8, so as to control the opening and closing of the valve body 8, after the position of the valve ball 7 is adjusted, the screw 2 is controlled to rotate through the adjusting handle 1, the screw 2 is in transmission with the internal thread lead screw at the port of the shaft sleeve at the top end of the valve rod 14 through the upper thread 3 on the screw 2, the screw 2 is lifted in the inner cavity of the valve rod 14, one end of the screw 2 can press the valve ball 7, the valve ball 7 can be tightly attached to the inner cavity wall of the valve body 8, the rotation of the valve body can be prevented, the sealing effect is increased, the fluid can exert pressure to its inner wall to top cap 21 and end cap 23 to the both ends of valve ball 7 exert pressure, make top cap 21 and end cap 23 expand under the effect of linking strip 22, thereby make the outer wall of valve ball 7 carry out closely laminating state with the inner chamber wall of valve body 8 all the time, increase its sealed effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A metal seal ball valve that floats, includes valve body (8), its characterized in that: the inner chamber mid-mounting of valve body (8) has valve ball (7), the both sides of valve ball (7) are provided with valve ball hole (15), top cap (21) are installed on the top of valve ball (7), end cap (23) are installed to the bottom of valve ball (7), the top of top cap (21) is provided with terminal surface (16), fixing clip (17) are installed through the welding mode in the top middle part of terminal surface (16), the top middle part of fixing clip (17) is provided with inlays hole (18), top cap (13) are installed on the top of valve body (8), transmission case (10) are installed through well flange (5) in the top of top cap (13), valve rod (14) are installed to inside one side of transmission case (10), install first transmission gear (4) on valve rod (14), the internally mounted of valve rod (14) has screw rod (2), an upper thread (3) is arranged at the upper position of the screw rod (2), an adjusting handle (1) is installed at the top end of the screw rod (2), an electric motor (9) is installed on one side of the top end of the transmission box (10), a transmission shaft (11) is installed at one end of the electric motor (9), and a second transmission gear (12) is installed on the transmission shaft (11); the valve ball (7) and the top cap (21) and the valve ball (7) and the bottom cap (23) are connected in a linking manner through linking strips (22), and the top cap (21) and the bottom cap (23) are arranged at two ends of the valve ball (7) in a mutually symmetrical manner; an embedding head (24) is installed at one end of the screw rod (2), and the embedding head (24) is connected with an embedding hole (18) in the middle of the fixing clamp (17) in an embedding manner; the inner side wall of the valve body (8) is provided with a wear-resistant layer (6), and the wear-resistant layer (6) is coated in the inner cavity of the valve body (8) through glue solution; the transmission shaft (11) is arranged in the transmission box (10), and a second transmission gear (12) on the transmission shaft (11) is in gear transmission connection with the first transmission gear (4);
when the device is used, the electric motor 9 controls the transmission shaft 11 to rotate, the transmission shaft 11 is in gear transmission with the first transmission gear 4 through the second transmission gear 12 on the transmission shaft, the transmission shaft drives the valve rod 14 to rotate, the valve rod 14 rotates to drive the valve ball 7 to rotate, the valve ball 7 controls whether the valve ball hole 15 on the transmission shaft is communicated with the inner cavity of the valve body 8, so as to control the opening and closing of the valve body 8, after the position of the valve ball 7 is adjusted, the screw 2 is controlled to rotate through the adjusting handle 1, the screw 2 is in transmission with the internal thread lead screw at the port of the shaft sleeve at the top end of the valve rod 14 through the upper thread 3 on the screw 2, the screw 2 is lifted in the inner cavity of the valve rod 14, one end of the screw 2 can press the valve ball 7, the valve ball 7 can be tightly attached to the inner cavity wall of the valve body 8, the rotation of the valve body can be prevented, the sealing effect is increased, the fluid can exert pressure to its inner wall to top cap 21 and end cap 23 to the both ends of valve ball 7 exert pressure, make top cap 21 and end cap 23 expand under the effect of linking strip 22, thereby make the outer wall of valve ball 7 carry out closely laminating state with the inner chamber wall of valve body 8 all the time, increase its sealed effect.
2. A metal seal floating ball valve according to claim 1, wherein: the top of transmission case (10) is installed the axle sleeve, and leans on upper position department to be provided with the internal thread in the inside of axle sleeve, and screw rod (2) are through last screw thread (3) and axle sleeve screw drive on it, the inside of axle sleeve leans on lower position department to be provided with the shaft hole, and the top of valve rod (14) is connected with the shaft hole rotation of axle sleeve inner chamber.
3. A metal seal floating ball valve according to claim 1, wherein: a fixing head (19) is installed at one end of the valve rod (14), and a waist hole (20) is formed in the fixing head (19).
4. A metal seal floating ball valve according to claim 3, wherein: the fixing head (19) is fixedly connected with the fixing clamp (17) through a bolt, the bolt is fixed on the waist hole (20), and the bolt is in sliding connection with the inner side wall of the waist hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417127.6A CN110131437B (en) | 2019-05-20 | 2019-05-20 | Metal sealing floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417127.6A CN110131437B (en) | 2019-05-20 | 2019-05-20 | Metal sealing floating ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131437A CN110131437A (en) | 2019-08-16 |
| CN110131437B true CN110131437B (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910417127.6A Active CN110131437B (en) | 2019-05-20 | 2019-05-20 | Metal sealing floating ball valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN110131437B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555446B (en) * | 2020-11-19 | 2023-07-25 | 拓姆菲阀门科技有限公司 | Ball valve with high sealing performance |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5417404A (en) * | 1993-10-22 | 1995-05-23 | Varden; Arnold | Geared ball valve |
| CN202074064U (en) * | 2011-04-30 | 2011-12-14 | 荆门市恒力机械有限公司 | Cone valve with non-abrasion sealing faces |
| CN203926885U (en) * | 2014-06-24 | 2014-11-05 | 扬州恒电阀门控制设备有限公司 | A kind of fast automatic open-close type electric ball valve |
| CN204878823U (en) * | 2015-07-31 | 2015-12-16 | 瑞昌市金宇铜业制造有限公司 | High -pressure fluid ball valve |
| CN105156706A (en) * | 2015-10-08 | 2015-12-16 | 西诺威阀门控制（苏州）有限公司 | Plug valve |
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2019
- 2019-05-20 CN CN201910417127.6A patent/CN110131437B/en active Active
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| CN110131437A (en) | 2019-08-16 |
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| CB02 | Change of applicant information |
Address after: No.27, Sumitomo dianzhuang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Applicant after: CNV VALVE & CONTROL Co.,Inc. Address before: 215000 Pan Yang Industrial Park, Suzhou, Jiangsu, Xiangcheng District Applicant before: CNV VALVE & CONTROL Co.,Inc. |
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