CN108662239B - Through type internal thread is from locking-type ball valve - Google Patents
Through type internal thread is from locking-type ball valve Download PDFInfo
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- CN108662239B CN108662239B CN201810871288.8A CN201810871288A CN108662239B CN 108662239 B CN108662239 B CN 108662239B CN 201810871288 A CN201810871288 A CN 201810871288A CN 108662239 B CN108662239 B CN 108662239B
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- valve
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- internal thread
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- ball
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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
- 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
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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
- F16K5/061—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 knee-joint
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a through type internal thread self-locking ball valve which comprises a valve body, a connecting sleeve, a locking shell and a rotary table, wherein a first connecting pipe is arranged on one side wall of the valve body, a first connecting table is arranged at one end of the first connecting pipe, a first through hole is formed in the middle of the inner part of the first connecting table, a second connecting pipe is arranged in the middle of the other side wall of the valve body, and a second connecting table is welded at one end of the second connecting pipe. Has the advantages that: through setting up the adapter sleeve, fastening bolt, jack one, sealed pad one, jack two and sealed pad two, can realize the convenient dismouting of ball valve, can guarantee the convenience that the ball valve used, through setting up reference block and scale strip, can realize carousel turned angle's accurate control, and then can realize the accurate control of valve ball degree of opening and shutting, can guarantee the reliability that the ball valve used, through setting up the locking shell, locking gasket and connecting strip, can reliably lock the valve rod after the ball valve is opened, can effectively prevent the rotation of valve rod, can guarantee the reliability of ball valve auto-lock.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a through type internal thread self-locking ball valve.
Background
The valve is a control part in a fluid conveying system, and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure, and the like, wherein a ball valve is commonly used in the valve.
The patent number is CN 205260898U's chinese patent, discloses a through type internal thread is from locking-type ball valve, including ball valve body, ball valve handle and self-locking mechanism, the ball valve body has the arch, is equipped with the recess on the arch, is equipped with the spheroid in the ball valve body, is equipped with first through-hole in the spheroid, and the ball valve body top is equipped with gland, is equipped with gland on the gland, is equipped with the ball valve rod in the gland, is equipped with second through-hole and third through-hole in the ball valve seat, and self-locking mechanism includes lock sleeve, lock dish and locking lever.
Although the auto-lock of valve rod can be realized when the ball valve is opened to above-mentioned patent, its auto-lock mode is single, can take place the condition of valve rod rotation at the auto-lock in-process often, and the reliability of auto-lock is relatively poor, and it adopts the integral type structure more, and the cartridge is inconvenient, and the convenience of use is relatively poor, and its pivoted randomness of valve rod is great in the use in addition, and the rotation angle of valve ball is uncontrollable, and the valve ball uses the reliability relatively poor.
Disclosure of Invention
The invention aims to solve the problems and provide a through type internal thread self-locking ball valve.
The invention realizes the purpose through the following technical scheme: a straight-through type internal thread self-locking ball valve comprises a valve body, a connecting sleeve, a locking shell and a rotary disc, wherein a first connecting pipe is arranged on one side wall of the valve body, a first connecting table is arranged at one end of the first connecting pipe, a first through hole is formed in the middle of the inside of the first connecting table, a second connecting pipe is arranged in the middle of the other side wall of the valve body, a second connecting table is welded at one end of the second connecting pipe, a second through hole is formed in the inside of the second connecting table, a valve ball is arranged in the valve body, a third through hole is formed in the middle of the inside of the valve ball, sealing gaskets are bonded at positions close to the upper end and the bottom end of the valve ball in the valve body, a first inserting hole is arranged on the side wall close to the first connecting pipe in the valve body, a first sealing ring is arranged on the side wall close, the valve body upper end middle part is provided with the boss, boss lateral wall middle part is embedded to have the benchmark piece, the boss upper end is provided with the adapter sleeve, adapter sleeve bottom periphery is provided with fastening bolt, adapter sleeve upper end periphery is provided with the external screw thread, the outer upper end of adapter sleeve is provided with the lock gasket, the upper end is provided with the bearing in the adapter sleeve, be provided with the valve rod on the bearing inner wall, keep away from on the valve rod directly over the adapter sleeve be provided with the locking shell, the peripheral articulated connecting strip that has of locking shell upper end, be provided with internal thread, connecting hole in the locking shell, the valve rod top is provided with the carousel, the carousel includes fixed frame and connecting rod, the carousel periphery sets up.
Furthermore, the first connecting platform is welded on the first connecting pipe, and the second through hole is formed in the second connecting platform.
Furthermore, the first jack and the second jack are formed on the valve body, the first sealing ring is bonded on the inner wall of the first jack, and the second sealing ring is bonded on the second jack.
Furthermore, the first connecting pipe is inserted on the inner wall of the first sealing ring, and the second connecting pipe is inserted on the inner wall of the second sealing ring.
Furthermore, the boss is welded on the valve body, and the slot is formed on the valve body.
Further, valve rod one end is fixed through interference fit connection on the slot inner wall, the welding of the valve rod other end is in on the carousel.
Furthermore, the fastening bolt is screwed on the connecting sleeve, and the connecting sleeve is connected with the boss through the fastening bolt.
Further, the bearing is embedded in the connecting sleeve, the valve rod is fixed to the inner wall of the bearing through interference connection, the external threads are formed on the connecting sleeve, and the locking gasket is bonded to the connecting sleeve.
Furthermore, a hollow structure is adopted in the locking shell, the internal thread is formed on the inner wall of the locking shell, the connecting hole is formed in the locking shell, the locking shell is fixed on the valve rod through clearance fit, and the locking shell is provided with four connecting strips.
The specific working principle is as follows: when in use, the first connecting pipe is fixed on the valve body through the first sealing ring, the second connecting pipe is fixed on the valve body through the second sealing ring, the valve rod is fixed on the valve body, the connecting sleeve is fixed on the valve rod and is connected with the boss through the fastening bolt, finally the locking shell is fixed on the valve rod, the turntable can drive the valve ball to rotate through the valve rod, when the valve ball rotates to the first through hole, the second through hole and the third through hole, the communication of the valve can be realized, the rotating angle of the turntable can be accurately controlled through the reference block and the scale strip, and further, the rotating angle of the valve ball can be controlled, so that the accurate control of the opening degree of the ball valve can be realized, the external thread and the internal thread can be screwed together by rotating the locking shell, so that the connecting sleeve can be reliably connected with the locking shell, when the locking gasket is contacted with the inner wall of the locking shell, the rotation can be stopped, at the moment, the connecting strip is in a tensioning state, the valve rod can be reliably locked by the locking gasket and the connecting strip, and the reliability of valve self-locking can be ensured.
The invention has the beneficial effects that:
1. by arranging the connecting sleeve, the fastening bolt, the first inserting hole, the first sealing gasket, the second inserting hole and the second sealing gasket, the ball valve can be conveniently disassembled and assembled, and the use convenience of the ball valve can be ensured;
2. by arranging the reference block and the scale strips, the accurate control of the rotation angle of the turntable can be realized, the accurate control of the opening and closing degree of the ball valve can be realized, and the use reliability of the ball valve can be ensured;
3. through setting up locking shell, lock washer and connecting strip, can reliably lock the valve rod after the ball valve is opened, can effectively prevent the rotation of valve rod, can guarantee the reliability of ball valve auto-lock.
Drawings
FIG. 1 is a schematic structural diagram of a through type internal thread self-locking ball valve according to the present invention;
FIG. 2 is a cross-sectional view of a valve body and a boss in a through type internal thread self-locking ball valve according to the present invention;
FIG. 3 is a cross-sectional view of a connecting sleeve in a through type internal thread self-locking ball valve according to the present invention;
fig. 4 is a cross-sectional view of a locking shell in a through type internal thread self-locking ball valve according to the present invention.
The reference numerals are explained below:
1. a connecting rod; 2. a turntable; 3. an external thread; 4. a reference block; 5. connecting sleeves; 6. a boss; 7. a first connecting table; 8. a first connecting pipe; 9. a first through hole; 10. a valve body; 1001. a third through hole; 1002. a first sealing ring; 1003. a first jack; 1004. a gasket; 1005. a second sealing ring; 1006. a second jack; 1007. a valve ball; 1008. a slot; 11. a second through hole; 12. a second connecting table; 13. a second connecting pipe; 14. fastening a bolt; 15. a locking shell; 1501. an internal thread; 1502. connecting holes; 16. a scale bar; 17. a connecting strip; 18. a valve stem; 19. a fixing frame; 20. a locking washer; 21. and a bearing.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-4, a straight-through type internal thread self-locking ball valve comprises a valve body 10, a connecting sleeve 5, a locking shell 15 and a rotary table 2, wherein a first connecting pipe 8 is arranged on one side wall of the valve body 10, a first connecting table 7 is arranged at one end of the first connecting pipe 8, a first through hole 9 is formed in the middle of the first connecting table 7, the first connecting pipe 8 can be communicated with the valve body 10 through the first through hole 9, a second connecting pipe 13 is arranged in the middle of the other side wall of the valve body 10, a second connecting table 12 is welded at one end of the second connecting pipe 13, a second through hole 11 is formed in the second connecting table 12, the second connecting pipe 13 can be communicated with the valve body 10 through the second through hole 11, a valve ball 1007 is arranged in the valve body 10, the valve ball 1007 controls the opening and closing of a valve, a third through hole 1001 is formed in the middle of the valve ball 1007, and sealing gaskets 1004 are, the sealing gasket 1004 can reliably seal the valve ball 1007 and the inner wall of the valve body 10, the side wall of the valve body 10 close to the first connecting pipe 8 is provided with a first insertion hole 1003, the inner wall of the first insertion hole 1003 is provided with a first sealing ring 1002, the first connecting pipe 8 can be reliably fixed on the valve body 10 through the first sealing ring 1002 and the first insertion hole 1003, the side wall of the valve body 10 close to the second connecting pipe 13 is provided with a second insertion hole 1006, the inner wall of the second insertion hole 1006 is provided with a second sealing ring 1005, the second connecting pipe 13 can be reliably fixed on the valve body 10 through the second sealing ring 1005 and the second insertion hole 1006, the middle part of the upper end of the valve ball 1007 is provided with a slot 1008, the middle part of the upper end of the valve body 10 is provided with a boss 6, the middle part of one side wall of the boss 6 is embedded with a reference block 4, and the rotation angle, and then the rotation angle of the valve ball 1007 can be controlled, the opening and closing degree of the ball valve can be accurately controlled, the connecting sleeve 5 is arranged at the upper end of the boss 6, the fastening bolt 14 is arranged at the periphery of the bottom end of the connecting sleeve 5, the locking shell 15 can be reliably connected with the connecting sleeve 5 through the fastening bolt 14, the external thread 3 is arranged at the periphery of the upper end of the connecting sleeve 5, the locking gasket 20 is arranged at the upper end outside the connecting sleeve 5, the locking shell 15 and the connecting sleeve 5 can be effectively prevented from sliding relatively through the locking gasket 20, the reliability of valve self-locking can be ensured, the bearing 21 is arranged at the upper end in the connecting sleeve 5, the valve rod 18 is arranged on the inner wall of the bearing 21, the locking shell 15 is arranged on the valve rod 18 and far away from the position right above the connecting sleeve 5, the connecting strip 17 is hinged at the periphery of the upper end of, and then can realize the auto-lock of valve, be provided with internal thread 1501, connecting hole 1502 in the lock shell 15, valve rod 18 top is provided with carousel 2, carousel 2 includes fixed frame 19 and connecting rod 1, be provided with scale bar 16 on the carousel 2 periphery sets up.
In this embodiment, the first connecting platform 7 is welded to the first connecting pipe 8, and the second through hole 11 is formed in the second connecting platform 12.
In this embodiment, the first insertion hole 1003 and the second insertion hole 1006 are formed in the valve body 10, the first sealing ring 1002 is bonded to the inner wall of the first insertion hole 1003, and the second sealing ring 1005 is bonded to the second insertion hole 1006.
In this embodiment, the first connecting pipe 8 is inserted into the inner wall of the first sealing ring 1002, and the second connecting pipe 13 is inserted into the inner wall of the second sealing ring 1005.
In this embodiment, the boss 6 is welded to the valve body 10, and the insertion groove 1008 is formed in the valve body 10.
In this embodiment, one end of the valve rod 18 is fixed on the inner wall of the slot 1008 through interference connection, and the other end of the valve rod 18 is welded on the turntable 2.
In this embodiment, the fastening bolt 14 is screwed on the connecting sleeve 5, and the connecting sleeve 5 is connected with the boss 6 through the fastening bolt 14.
In this embodiment, the bearing 21 is embedded in the connecting sleeve 5, the valve rod 18 is fixed on the inner wall of the bearing 21 through interference connection, the external thread 3 is formed on the connecting sleeve 5, and the locking gasket 20 is adhered on the connecting sleeve 5.
In this embodiment, a hollow structure is adopted in the locking shell 15, the internal thread 1501 is formed on the inner wall of the locking shell 15, the connecting hole 1502 is formed on the locking shell 15, the locking shell 15 is fixed on the valve rod 18 through clearance fit, and the locking shell 15 is provided with four connecting strips 17.
The specific working principle is as follows: when in use, the first connecting pipe 8 is fixed on the valve body 10 through the first sealing ring 1002, the second connecting pipe 13 is fixed on the valve body 10 through the second sealing ring 1005, the valve rod 18 is fixed on the valve body 10, the connecting sleeve 5 is fixed on the valve rod 18, the connecting sleeve 5 is connected with the boss 6 through the fastening bolt 14, the locking shell 15 is fixed on the valve rod 18, the rotary disc 2 is rotated, the valve ball 1007 is driven to rotate through the valve rod 18, when the valve ball 1007 rotates to communicate the first through hole 9, the second through hole 11 and the third through hole 1001, the communication of the valve can be realized, and the rotation angle of the rotary disc 2 can be accurately controlled through the reference block 4 and the scale strip 16, and then can control the turned angle of the said valve ball 1007, so as to realize the accurate control of the opening and closing degree of the ball valve, rotate the said lock shell 15 can make the said external screw thread 3 and the said internal screw thread 1501 revolve together, and then can make the said adapter sleeve 5 link with the said lock shell 15 reliably, when the said lock spacer 20 contacts on the inner wall of the said lock shell 15, can stop rotating, the said joint bar 17 is in the tension state at this moment, can lock the said valve stem 18 reliably through the said lock spacer 20 and the said joint bar 17, and then can guarantee the reliability of the valve auto-lock.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (9)
1. A through type internal thread is from locking-type ball valve which characterized in that: the valve comprises a valve body (10), a connecting sleeve (5), a locking shell (15) and a rotary table (2), wherein a first connecting pipe (8) is arranged on one side wall of the valve body (10), a first connecting table (7) is arranged at one end of the first connecting pipe (8), a first through hole (9) is formed in the middle of the first connecting table (7), a second connecting pipe (13) is arranged in the middle of the other side wall of the valve body (10), a second connecting table (12) is welded at one end of the second connecting pipe (13), a second through hole (11) is formed in the second connecting table (12), a valve ball (1007) is arranged in the valve body (10), a third through hole (1001) is formed in the middle of the valve ball (1007), sealing gaskets (1004) are bonded at positions close to the upper end and the bottom end of the valve ball (1007) in the valve body (10), and a first inserting hole (1003) is arranged on, the sealing device is characterized in that a first sealing ring (1002) is arranged on the inner wall of the first insertion hole (1003), a second insertion hole (1006) is arranged in the valve body (10) and close to the side wall of the second connecting pipe (13), a second sealing ring (1005) is arranged on the inner wall of the second insertion hole (1006), a slot (1008) is arranged in the middle of the upper end of the valve ball (1007), a boss (6) is arranged in the middle of the upper end of the valve body (10), a reference block (4) is embedded in the middle of one side wall of the boss (6), the connecting sleeve (5) is arranged at the upper end of the boss (6), a fastening bolt (14) is arranged on the periphery of the bottom end of the connecting sleeve (5), external threads (3) are arranged on the periphery of the upper end of the connecting sleeve (5), a locking gasket (20) is arranged on the outer, keep away from on valve rod (18) be provided with directly over adapter sleeve (5) locking shell (15), locking shell (15) upper end periphery articulates there is connecting strip (17), be provided with internal thread (1501), connecting hole (1502) in locking shell (15), valve rod (18) top is provided with carousel (2), carousel (2) are including fixed frame (19) and connecting rod (1), be provided with scale strip (16) on carousel (2) periphery sets up.
2. A through type internal thread self-locking ball valve according to claim 1, wherein: the first connecting platform (7) is welded on the first connecting pipe (8), and the second through hole (11) is formed in the second connecting platform (12).
3. A through type internal thread self-locking ball valve according to claim 1, wherein: the first insertion hole (1003) and the second insertion hole (1006) are formed in the valve body (10), the first sealing ring (1002) is bonded to the inner wall of the first insertion hole (1003), and the second sealing ring (1005) is bonded to the inner wall of the second insertion hole (1006).
4. A through type internal thread self-locking ball valve according to claim 1, wherein: the first connecting pipe (8) is connected to the inner wall of the first sealing ring (1002) in an inserting mode, and the second connecting pipe (13) is connected to the inner wall of the second sealing ring (1005) in an inserting mode.
5. A through type internal thread self-locking ball valve according to claim 1, wherein: the boss (6) is welded on the valve body (10), and the slot (1008) is formed in the valve body (10).
6. A through type internal thread self-locking ball valve according to claim 1, wherein: one end of the valve rod (18) is fixed on the inner wall of the slot (1008) through interference connection, and the other end of the valve rod (18) is welded on the rotary disc (2).
7. A through type internal thread self-locking ball valve according to claim 1, wherein: the fastening bolt (14) is screwed on the connecting sleeve (5), and the connecting sleeve (5) is connected with the boss (6) through the fastening bolt (14).
8. A through type internal thread self-locking ball valve according to claim 1, wherein: bearing (21) are embedded in on adapter sleeve (5), valve rod (18) are fixed through interference connection on bearing (21) inner wall, external screw thread (3) shaping in on adapter sleeve (5), lock washer (20) bond in on adapter sleeve (5).
9. A through type internal thread self-locking ball valve according to claim 1, wherein: adopt hollow structure in locking shell (15), internal thread (1501) shaping in on locking shell (15) inner wall, connecting hole (1502) shaping in on locking shell (15), locking shell (15) are fixed through clearance fit on valve rod (18), be provided with four on locking shell (15) connecting strip (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871288.8A CN108662239B (en) | 2018-08-02 | 2018-08-02 | Through type internal thread is from locking-type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871288.8A CN108662239B (en) | 2018-08-02 | 2018-08-02 | Through type internal thread is from locking-type ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662239A CN108662239A (en) | 2018-10-16 |
| CN108662239B true CN108662239B (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810871288.8A Active CN108662239B (en) | 2018-08-02 | 2018-08-02 | Through type internal thread is from locking-type ball valve |
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| CN (1) | CN108662239B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654239B (en) * | 2019-02-28 | 2020-05-22 | 江苏雄越石油机械设备制造有限公司 | Micro wellhead gate valve |
| CN116220611B (en) * | 2023-02-06 | 2023-09-01 | 江苏苏盐阀门机械有限公司 | Corrosion-proof oil well valve |
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| CN201259009Y (en) * | 2008-08-22 | 2009-06-17 | 安徽省屯溪高压阀门有限公司 | Bellows stop check valve |
| CN201944406U (en) * | 2011-02-16 | 2011-08-24 | 毕志成 | Lockable valve device with opening and closing indicating function |
| CN202032161U (en) * | 2011-04-20 | 2011-11-09 | 福鼎市厦联电器有限公司 | Spherical valve opening control device |
| KR20140003491U (en) * | 2012-11-27 | 2014-06-11 | 대우조선해양 주식회사 | valve handle locking device for ship |
| CN104633161A (en) * | 2013-11-07 | 2015-05-20 | 氟络塞尔特种阀门(苏州)有限公司 | Quantitative ball water adjusting valve |
| CN204040664U (en) * | 2014-07-29 | 2014-12-24 | 国家电网公司 | Dish-type handle valve mechanical lock |
| CN104405912A (en) * | 2014-12-09 | 2015-03-11 | 兰州高压阀门有限公司 | Incoloy825 alloy hard sealing flat gate valve resistant to high pressure of high-sulfur natural gas and forging process |
| CN204785009U (en) * | 2015-07-02 | 2015-11-18 | 中国神华能源股份有限公司 | Latching valve door subassembly |
| CN206175793U (en) * | 2016-09-23 | 2017-05-17 | 成都乘风阀门有限责任公司 | Valve adds individual malposed tooth to be constructed |
| CN206845964U (en) * | 2017-04-17 | 2018-01-05 | 浙江希尔塑胶阀门有限公司 | Three-flat ball valve |
| CN106949257A (en) * | 2017-05-07 | 2017-07-14 | 天津市荣恒阀门有限公司 | A kind of new adjustable ball valve |
| CN206845966U (en) * | 2017-06-11 | 2018-01-05 | 天津市津塘富源阀门有限公司 | A kind of anti-misoperation ball valve |
| CN207554813U (en) * | 2017-12-01 | 2018-06-29 | 温州市飞翔蝶阀有限公司 | A kind of flange form butterfly valve with cleaning filter effect |
| CN207701905U (en) * | 2017-12-19 | 2018-08-07 | 江苏金府村石油装备有限公司 | A kind of valve with self-locking function |
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2018
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| CN108662239A (en) | 2018-10-16 |
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