CN109282053A - Eccentric half-ball valve with Telescopic - Google Patents
Eccentric half-ball valve with Telescopic Download PDFInfo
- Publication number
- CN109282053A CN109282053A CN201811458877.XA CN201811458877A CN109282053A CN 109282053 A CN109282053 A CN 109282053A CN 201811458877 A CN201811458877 A CN 201811458877A CN 109282053 A CN109282053 A CN 109282053A
- Authority
- CN
- China
- Prior art keywords
- valve
- telescopic
- eccentric half
- valve body
- deck
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 241000237858 Gastropoda Species 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
-
- 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
- F16K5/08—Details
-
- 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
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Abstract
The present invention provides a kind of eccentric half-ball valves with Telescopic, including valve body, valve deck and transmission mechanism；The body top is equipped with valve deck, and spool is equipped in valve body, and valve body is equipped with water outlet and water inlet；Water outlet is equipped with valve seat；Water inlet is removably connected with a flexible pipe flange；Several telescoping mechanisms are installed between valve body and flexible pipe flange；Several telescoping mechanisms are respectively positioned on the periphery of valve body；The valve deck upper end connect the transmission mechanism with by bracket, and transmission mechanism is connect with valve rod upper end；Valve rod lower end passes through the valve deck and connect with spool；The junction upper end of valve rod and valve deck is equipped with gland, and lower end is equipped with axle sleeve.Eccentric half-ball valve of the present invention with Telescopic, eccentric half-ball valve and pipeline telescopic device are combined together, can the influence of effective solution pipeline construction and pipeline when expanding with heat and contract with cold to pipeline.
Description
Technical field
The invention belongs to valve fields, more particularly, to a kind of eccentric half-ball valve with Telescopic.
Background technique
Either in Long-distance Water Transmission Pipeline or in general engineering pipe network, a large amount of valve usually can be all used
And expansion joint for pipeline, the use of eccentric half-ball valve are also more universal, but the inevitable steel in valve installation process
Length is sometimes short sometimes for pipe, and a part of steel pipe will be truncated by having grown, and short a part of steel pipe that burn-on so is caused to construction
Very big trouble wastes many manpower and material resources and time.
Summary of the invention
In view of this, the present invention is directed to propose a kind of eccentric half-ball valve with Telescopic, to overcome the prior art
Defect combines eccentric half-ball valve and pipeline telescopic device together, can effective solution pipeline construction and pipeline when expanding with heat and contract with cold pair
The influence of pipeline.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
Eccentric half-ball valve with Telescopic, including valve body, valve deck and transmission mechanism；
The body top is equipped with valve deck, and spool is equipped in valve body, and valve body is equipped with water outlet and water inlet；Water outlet
Valve seat is installed at mouthful；Water inlet is removably connected with a flexible pipe flange；If being equipped between valve body and flexible pipe flange
Dry telescoping mechanism；Several telescoping mechanisms are respectively positioned on the periphery of valve body；
The valve deck upper end connect the transmission mechanism with by bracket, and transmission mechanism is connect with valve rod upper end；Under valve rod
End is connect across the valve deck with spool；The junction upper end of valve rod and valve deck is equipped with gland, and lower end is equipped with axle sleeve.
Further, the transmission mechanism is worm gear mechanism or hydraulic actuating mechanism.
Further, valve rod upper end is connect with worm gear by flat key, and valve rod lower end is connect with spool by flat key.
Further, gland and axle sleeve cover on valve rod, the junction of gland and valve rod, gland with
The longitudinally connected place of valve deck is mounted on sealing ring.
Further, valve deck is stretched out in gland upper end, and is connect with valve deck by the first bolt, the first nut.
Further, packing seal circle is installed between filler valve deck and axle sleeve.
Further, the junction of valve seat and valve body is equipped with valve seat insert；Valve seat is equipped with master far from spool side
Sealing ring pressing plate；Valve seat and spool junction are equipped with primary seal circle.
Further, the junction of flexible pipe flange and valve body is equipped with flexible seal ring.
Further, it is cased with sealing clamp on flexible pipe flange, sealing clamp is connect by hold-down bolt with valve body end face.
Further, telescoping mechanism includes expansion screw, the second nuts and washers；Several telescoping mechanisms are evenly distributed on valve
The periphery of body.Telescoping mechanism, the expansion screw mentioned in addition to the present invention, the second nuts and washers mechanism, can also be that other can
Realize the mechanism, such as spring etc. that spacing is adjusted axially between flexible pipe flange and valve body.
Compared with the existing technology, the eccentric half-ball valve of the present invention with Telescopic has the advantage that
Eccentric half-ball valve of the present invention with Telescopic also has in addition to having the function of eccentric half-ball valve
Eccentric half-ball valve and expansion joint for pipeline, are cleverly combined as a whole by the function of expansion joint for pipeline, and compared to inclined
Heart semisphere valve adds the cost of an expansion joint for pipeline to substantially reduce, and structure is simple, easy for installation, sealed reliable.
Eccentric half-ball valve of the present invention with Telescopic (namely stretches eccentric half-ball valve and pipeline telescopic device
Contracting mechanism) it combines together, if being used for piping connection, production efficiency can be improved, reduce energy consumption, it can effective solution pipeline construction
To the influence of pipeline when expanding with heat and contract with cold with pipeline.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the perspective view of the eccentric half-ball valve described in the embodiment of the present invention with Telescopic；
Fig. 2 is the front sectional view of the eccentric half-ball valve described in the embodiment of the present invention with Telescopic；
Fig. 3 is the right view of the eccentric half-ball valve described in the embodiment of the present invention with Telescopic.
Description of symbols:
1- transmission mechanism；2- valve deck；3- spool；4- valve body；5- valve rod；6- bracket；7- gland；8- axle sleeve；9- valve
Seat；10- water outlet；11- water inlet；12- stretches pipe flange；13- telescoping mechanism；1301- expansion screw；1302- washer；
The second nut of 1303-；14- sealing ring；The first bolt of 15-；The first nut of 16-；17- packing seal circle；18- valve seat insert；
19- primary seal circle pressing plate；20- sealing clamp；21- fastening bolt；22- flexible seal ring；23- primary seal circle；24- flat key.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-3, the eccentric half-ball valve with Telescopic, including valve body 4, valve deck 2 and transmission mechanism 1；It is described
Valve deck 2 is installed at the top of valve body 4, spool 3 is installed in valve body 4, valve body 4 is equipped with water outlet 10 and water inlet 11；Water outlet
Valve seat 9 is installed at 10；A flexible pipe flange 12 is removably connected at water inlet 11；Between valve body 4 and flexible pipe flange 12
Several telescoping mechanisms 13 are installed；Several telescoping mechanisms 13 are respectively positioned on the periphery of valve body 4；2 upper end of valve deck with pass through bracket 6
The transmission mechanism 1 is connected, transmission mechanism 1 is connect with 5 upper end of valve rod；5 lower end of valve rod passes through the valve deck 4 and connect with spool 3；
The junction upper end of valve rod 5 and valve deck 2 is equipped with gland 7, and lower end is equipped with axle sleeve 8.
Wherein, transmission mechanism 1 is worm gear mechanism or hydraulic actuating mechanism.The present embodiment transmission mechanism 1 uses worm gear
Worm mechanism, and the worm gear mechanism can use manual actuation, can also be driven using electric operator.
Wherein, 5 upper end of valve rod is connect with worm gear by flat key 24, and 5 lower end of valve rod is connect with spool 3 by flat key 24.
Wherein, gland 7 and axle sleeve 8 cover on valve rod 5, the junction of gland 7 and valve rod 5, gland 7
Sealing ring 14 is mounted on the longitudinally connected place of valve deck 2.Valve deck 2 is stretched out in 7 upper end of gland, and passes through first with valve deck 2
Bolt 15, the connection of the first nut 16.Packing seal circle 17 is installed between filler valve deck 2 and axle sleeve 8.
Wherein, the junction of valve seat 9 and valve body 4 is equipped with valve seat insert 18；Valve seat 9 is equipped with far from 3 side of spool
Primary seal circle pressing plate 19；Valve seat 9 and 3 junction of spool are equipped with primary seal circle 23.
Wherein, the junction of flexible pipe flange 12 and valve body 4 is equipped with flexible seal ring 22.
Wherein, it is cased with sealing clamp 20 on flexible pipe flange 12, sealing clamp 20 passes through hold-down bolt 21 and 4 end face of valve body
Connection.
Wherein, telescoping mechanism 13 includes expansion screw 1301, the second nut 1303 and washer 1302；Several telescoping mechanisms 13
It is evenly distributed on the periphery of valve body 4.
It should be noted that the setting quantity of telescoping mechanism 13, it can be according to the size and sealing of eccentric half-ball valve
Demand is selected, and size is bigger, seal request is higher, and the quantity of setting can be more；Conversely,.In the present embodiment, stretch
The setting quantity of mechanism 13 is 16, and is evenly distributed on the same circle centered on the central axes of water outlet and water inlet
On.The compactness that pipeline is connect with this eccentric half-ball valve, and the two junction uniform force can be improved in this way, installation can be improved
Stability.
In use, can according to the connection insertion depth needs for being connected to 11 side pipe line of water inlet Yu this eccentric half-ball valve,
It by the unified spacing length for adjusting each expansion screw 1301 between valve body 4 and flexible pipe flange 12, and then is realization pair
Pipeline is inserted into the control of this eccentric half-ball valve depth.
With the eccentric half-ball valve of Telescopic provided by the present embodiment, in addition to having the function of eccentric half-ball valve, also
Have the function of expansion joint for pipeline, cleverly combines eccentric half-ball valve and expansion joint for pipeline (namely telescoping mechanism)
It being integrated, and adds the cost of an expansion joint for pipeline to substantially reduce compared to eccentric half-ball valve, structure is simple, and it is easy for installation,
Sealed reliable.It is used for piping connection, production efficiency can be improved, reduces energy consumption, it can effective solution pipeline construction and pipe
To the influence of pipeline when road is expanded with heat and contract with cold.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. the eccentric half-ball valve with Telescopic, it is characterised in that: including valve body (4), valve deck (2) and transmission mechanism (1)；
It is equipped with valve deck (2) at the top of the valve body (4), is equipped with spool (3) in valve body (4), valve body (4) is equipped with water outlet
(10) and water inlet (11)；Valve seat (9) are installed at water outlet (10)；A flexible tube method is removably connected at water inlet (11)
Blue (12)；Several telescoping mechanisms (13) are installed between valve body (4) and flexible pipe flange (12)；The equal position of several telescoping mechanisms (13)
In the periphery of valve body (4)；
Valve deck (2) upper end is connect the transmission mechanism (1) with by bracket (6), transmission mechanism (1) and valve rod (5) upper end
Connection；Valve rod (5) lower end passes through the valve deck (4) and connect with spool (3)；It installs the junction upper end of valve rod (5) and valve deck (2)
Have gland (7), lower end is equipped with axle sleeve (8).
2. the eccentric half-ball valve according to claim 1 with Telescopic, it is characterised in that: the transmission mechanism (1)
For worm gear mechanism or hydraulic actuating mechanism.
3. the eccentric half-ball valve according to claim 2 with Telescopic, it is characterised in that: valve rod (5) upper end and snail
Wheel is connected by flat key (24), and valve rod (5) lower end is connect with spool (3) by flat key (24).
4. the eccentric half-ball valve according to claim 1 with Telescopic, it is characterised in that: gland (7) and axis
Set (8) covers on valve rod (5), gland (7) and the junction of valve rod (5), the longitudinal direction of gland (7) and valve deck (2)
Junction is mounted on sealing ring (14).
5. the eccentric half-ball valve according to claim 1 or 4 with Telescopic, it is characterised in that: on gland (7)
Valve deck (2) are stretched out at end, and are connect with valve deck (2) by the first bolt (15), the first nut (16).
6. the eccentric half-ball valve according to claim 5 with Telescopic, it is characterised in that: filler valve deck (2) and axis
Packing seal circle (17) are installed between set (8).
7. the eccentric half-ball valve according to claim 1 with Telescopic, it is characterised in that: valve seat (9) and valve body (4)
Junction valve seat insert (18) are installed；Valve seat (9) is equipped with primary seal circle pressing plate (19) far from spool (3) side；Valve
Seat (9) and spool (3) junction are equipped with primary seal circle (23).
8. the eccentric half-ball valve according to claim 1 with Telescopic, it is characterised in that: flexible pipe flange (12) with
The junction of valve body (4) is equipped with flexible seal ring (22).
9. the eccentric half-ball valve with Telescopic according to claim 1 or 8, it is characterised in that: flexible pipe flange
(12) it is cased on sealing clamp (20), sealing clamp (20) is connect by hold-down bolt (21) with valve body (4) end face.
10. the eccentric half-ball valve according to claim 1 with Telescopic, it is characterised in that: telescoping mechanism (13) packet
Include expansion screw (1301), the second nut (1303) and washer (1302)；Several telescoping mechanisms (13) are evenly distributed on valve body (4)
Periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811458877.XA CN109282053A (en) | 2018-11-30 | 2018-11-30 | Eccentric half-ball valve with Telescopic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811458877.XA CN109282053A (en) | 2018-11-30 | 2018-11-30 | Eccentric half-ball valve with Telescopic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109282053A true CN109282053A (en) | 2019-01-29 |
Family
ID=65174267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811458877.XA Pending CN109282053A (en) | 2018-11-30 | 2018-11-30 | Eccentric half-ball valve with Telescopic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109282053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396502A (en) * | 2021-12-24 | 2022-04-26 | 西安保力强液压传动有限公司 | Composite telescopic circulating device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895922Y (en) * | 2006-04-19 | 2007-05-02 | 郑州市阀门集团有限公司 | Extending metal-sealing cutting ball valve |
| CN201982768U (en) * | 2011-01-13 | 2011-09-21 | 上海倍夫克阀门有限公司 | Novel telescopic ball valve |
| CN202955242U (en) * | 2012-11-25 | 2013-05-29 | 程汉章 | Double eccentric flexible butterfly valve |
| CN203335919U (en) * | 2013-06-22 | 2013-12-11 | 浙江万士通阀门有限公司 | Pipeline telescopic ball valve |
| CN103574075A (en) * | 2013-11-20 | 2014-02-12 | 天津市卡尔斯阀门有限公司 | Soft seal telescopic butterfly valve |
| CN204512467U (en) * | 2014-12-31 | 2015-07-29 | 浙江神州阀门有限公司 | The two eccentric flange of regulating type stretches butterfly valve |
| CN107620802A (en) * | 2017-09-06 | 2018-01-23 | 胜利阀门有限公司 | A kind of soft tube stretches butterfly valve |
| CN207621411U (en) * | 2017-12-05 | 2018-07-17 | 博纳斯威阀门股份有限公司 | A kind of eccentric half-ball valve with degassing function |
| CN209309366U (en) * | 2018-11-30 | 2019-08-27 | 博纳斯威阀门股份有限公司 | Eccentric half-ball valve with Telescopic |
-
2018
- 2018-11-30 CN CN201811458877.XA patent/CN109282053A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2895922Y (en) * | 2006-04-19 | 2007-05-02 | 郑州市阀门集团有限公司 | Extending metal-sealing cutting ball valve |
| CN201982768U (en) * | 2011-01-13 | 2011-09-21 | 上海倍夫克阀门有限公司 | Novel telescopic ball valve |
| CN202955242U (en) * | 2012-11-25 | 2013-05-29 | 程汉章 | Double eccentric flexible butterfly valve |
| CN203335919U (en) * | 2013-06-22 | 2013-12-11 | 浙江万士通阀门有限公司 | Pipeline telescopic ball valve |
| CN103574075A (en) * | 2013-11-20 | 2014-02-12 | 天津市卡尔斯阀门有限公司 | Soft seal telescopic butterfly valve |
| CN204512467U (en) * | 2014-12-31 | 2015-07-29 | 浙江神州阀门有限公司 | The two eccentric flange of regulating type stretches butterfly valve |
| CN107620802A (en) * | 2017-09-06 | 2018-01-23 | 胜利阀门有限公司 | A kind of soft tube stretches butterfly valve |
| CN207621411U (en) * | 2017-12-05 | 2018-07-17 | 博纳斯威阀门股份有限公司 | A kind of eccentric half-ball valve with degassing function |
| CN209309366U (en) * | 2018-11-30 | 2019-08-27 | 博纳斯威阀门股份有限公司 | Eccentric half-ball valve with Telescopic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396502A (en) * | 2021-12-24 | 2022-04-26 | 西安保力强液压传动有限公司 | Composite telescopic circulating device |
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