CN105587885A - Sealing ball valve - Google Patents
Sealing ball valve Download PDFInfo
- Publication number
- CN105587885A CN105587885A CN201610140008.7A CN201610140008A CN105587885A CN 105587885 A CN105587885 A CN 105587885A CN 201610140008 A CN201610140008 A CN 201610140008A CN 105587885 A CN105587885 A CN 105587885A
- Authority
- CN
- China
- Prior art keywords
- valve
- spheroid
- ball
- valve seat
- seal 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
- 238000007789 sealing Methods 0.000 title abstract description 21
- 230000008676 import Effects 0.000 claims description 34
- 239000011148 porous material Substances 0.000 claims description 16
- 208000020442 loss of weight Diseases 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 208000016261 weight loss Diseases 0.000 abstract 2
- 239000013585 weight reducing agent Substances 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
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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
- F16K5/0647—Spindles or actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a pipeline control valve, in particular to a sealing ball valve, which comprises a valve body, a valve rod, a ball body, an inlet valve seat and an outlet valve seat, wherein the inlet spherical surface of the ball body is provided with a through hole which is communicated with a flow passage of the ball body; the top of the ball body is subjected to weight reduction treatment to form a platform, a boss is arranged on the platform, a key groove is arranged in the boss, and the key groove is connected with a connecting key at the bottom of the valve rod; and the bottom of the sphere is subjected to weight reduction treatment to form a platform. In a word, the sealing ball valve provided by the invention has the characteristics of light weight, small operating torque, stable opening and closing and the like, the service life of the ball valve is prolonged, and the safety and the reliability of the ball valve are ensured.
Description
Technical field
The present invention relates to a kind of pipe control valve, particularly a kind of seal ball-valve.
Background technology
Flow resistance is little owing to having for ball valve, switch rapidly, good seal performance, long service life, be convenient to gasControl and the feature such as automatically controlled, be widely used in petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy etc.Industry is occupied very important status in national economy. Emerging along with the industry such as Coal Chemical Industry in recent yearsRise, ball valve, under high temperature, high pressure, high abrasion operating mode, has good seal performance, the feature that the life-span is long,Application is more extensive.
Ball valve is that the pretightning force by setting between valve seat and spheroid adds that pressure medium is close at valve seatThe active force producing on front cover forms enough seal pressures, thereby realizes sealing. Ball valve is in switch mistakeCheng Zhong, the pretightning force between valve seat and spheroid and pressure medium act on the sealing of valve seat and spheroid all the timeOn face, therefore the switch moment of ball valve is greater than other types valve. In a word, ball valve is being opened or is closingIn process, valve seat remains and contacts with ball seal face. Due to valve seat and ball seal face contact-making surfaceLong-pending large, the moment of friction that need to overcome is large, causes selecting the executing agency of large output torque, increasesThe large overall dimensions of valve; Due to the wearing and tearing between valve seat and the sealing surface of spheroid, strengthened simultaneouslyThere is the risk of leaking in sealing surface, has affected the service life of ball valve.
Summary of the invention
In order to overcome the defect of prior art, one object of the present invention is to propose a kind of ball sealerValve, the sphere structure that has adopted import sphere to be provided with through hole designs and has carried out loss of weight processing, increasesAdd the circulation path of medium, the fluid resistance while having reduced ball valve switch, thus improve mediumNowed forming, reduced the vibration and the noise that produce when pressure changes, make ball valve switch actionMore steady, alleviated the weight of spheroid simultaneously, also alleviate the own wt of valve.
Another object of the present invention is to propose a kind of seal ball-valve, and valve stem sleeve has adopted to be hadThe axle sleeve design of self-lubricating function, coefficient of friction is little, and anti-wear performance is good, while having reduced switching ballOperation moment of torsion, make switch motion steady, avoid valve rod place to sting the phenomenon of axle, simultaneously tool alsoThere is feature lightweight, long service life, in ball valve switch process, can form transfer membrane, reduceThe vibration of valve rod place, reduces noise, plays the effect of protection valve rod.
The 3rd object of the present invention is to propose a kind of seal ball-valve, import valve seat and outlet valve seatAdopt different materials, import valve seat adopts polytetrafluoroethylmaterial material, and outlet valve seat adopts enhancement modePolytetrafluoroethylmaterial material can ensure the sealing property of valve like this under high-temperature condition.
For reaching this object, the invention provides following technical scheme:
A kind of seal ball-valve provided by the invention, comprising: valve body, valve rod, spheroid, import valve seat,Outlet valve seat, the import sphere of described spheroid is provided with through hole, the runner of described through hole and described spheroidCommunicate; The top of described spheroid, through loss of weight processing, forms platform, is provided with boss, institute on platformState in boss and be provided with keyway, keyway is connected with the connecting key of described stem bottom; The end of described spheroidPortion, through loss of weight processing, forms platform. The sphere structure that adopts import sphere to be provided with through hole designs,At ball valve, during in complete shut-down state, outlet sphere forms ball face sealing with outlet valve seat, on import sphereThrough hole can not affect sealing property; In ball valve switch process, what medium can be from import sphereThrough hole passes through, and has increased the circulation path of medium, the fluid resistance while having reduced ball valve switch, therebyImprove the nowed forming of medium, reduced vibration and the noise of generation when pressure changes, made ball valveSwitch motion is more steady. Spheroid, through loss of weight processing, has alleviated the weight of spheroid, has also alleviated valveThe own wt of door.
In a concrete technical scheme, the bottom platform of described spheroid is provided with reinforcement, to protectThe strength and stiffness of card described spheroid after loss of weight is processed.
In another concrete technical scheme, the end face of described spheroid is provided with one or more connectionsHole, described intercommunicating pore is communicated with the runner of described spheroid with the body cavity in described valve body. Intercommunicating poreThe design pressure balance that can keep spheroid runner and body cavity.
In another concrete technical scheme, described intercommunicating pore is clear opening.
In another concrete technical scheme, also comprise valve stem sleeve, described valve stem sleeve is positioned at instituteState in the valve rod hole of valve body, and be placed on described valve rod. Valve stem sleeve has adopted has self-lubricating meritThe axle sleeve design of energy, coefficient of friction is little, and anti-wear performance is good, the operation moment of torsion while having reduced switching ball,Make switch motion steady, can avoid valve rod place to sting the phenomenon of axle simultaneously.
In another concrete technical scheme, it is logical that described valve stem sleeve is provided with one or more axle sleevesHole, described axle sleeve through hole is communicated with the inner headed face of described valve stem sleeve and periphery. The valve of design like thisFeature lightweight, long service life that rod sleeve also has can form transfer in ball valve switch processFilm, reduces the vibration of valve rod place, reduces noise, plays the effect of protection valve rod.
In another concrete technical scheme, described axle sleeve through hole is for being uniformly distributed.
In another concrete technical scheme, described axle sleeve through hole is clear opening.
In another concrete technical scheme, the material of described import valve seat is polytetrafluoroethylene (PTFE).
In another concrete technical scheme, the material of described outlet valve seat is enhancement mode polytetrafluoroEthene. Import valve seat adopts different materials from outlet valve seat, can protect like this under high-temperature conditionThe sealing property of card valve.
Beneficial effect of the present invention is:
A kind of seal ball-valve provided by the invention, owing to having adopted import sphere to be provided with the ball of through holeBody structure designs and passes through loss of weight processing, adopted have self-lubricating function valve stem sleeve design,Import valve seat adopts different materials from outlet valve seat, thereby has the following advantages:
Fluid resistance while having reduced ball valve switch, has improved the nowed forming of medium, has reduced pressureThe vibration and the noise that when power changes, produce, make ball valve switch action more steady, alleviated simultaneouslyThe weight of spheroid, has also alleviated the own wt of valve, has extended the service life of ball valve, has ensuredThe safety and reliability of ball valve.
Valve rod place coefficient of friction is little, and anti-wear performance is good, the operation moment of torsion while having reduced switching ball,Make switch motion steady, avoid valve rod place to sting the phenomenon of axle.
Worst hot case lower sphere and valve base sealing are reliable, have avoided ball valve that interior danger of leaking occurs.
Meanwhile, the present invention have simple in structure, be easy to processing, be beneficial to the spies such as assembling, energy-conserving and environment-protectivePoint, can be widely used in the poor operating mode of HTHP.
Brief description of the drawings
The structural representation of a kind of seal ball-valve full-gear that Fig. 1 provides for the embodiment of the present invention;
The structural representation of a kind of seal ball-valve complete shut-down state that Fig. 2 provides for the embodiment of the present invention;
A kind of seal ball-valve spheroid that Fig. 3 provides for the embodiment of the present invention and the structural representation of valve seat;
The structural representation of a kind of seal ball-valve valve stem sleeve that Fig. 4 provides for the embodiment of the present invention.
In figure:
1, valve body; 2, end cap; 3, valve rod; 4, spheroid; 5, import valve seat; 6, outlet valve seat;7, axle sleeve; 4-1, through hole; 4-2, intercommunicating pore; 4-3, reinforcement; 7-1, axle sleeve through hole.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention and accompanying drawing, technical scheme of the present invention is carried out clear, completeDescribe, obviously, described embodiment is only the present invention's part embodiment, instead of complete wholelyThe embodiment of portion. Based on the embodiment in the present invention, those of ordinary skill in the art are not making woundThe every other embodiment obtaining under the property made work prerequisite, belongs to the model that the present invention protectsEnclose.
Embodiment 1
The embodiment of the present invention provides a kind of seal ball-valve, as shown in Figure 1, comprising: by valve body1 and the whole valve body structure that forms of end cap 2, valve rod 3, spheroid 4, import valve seat 5, outlet valve seat6, valve stem sleeve 7, import valve seat 5 and outlet valve seat 6 are arranged in the cavity of valve body, spheroid 4In import valve seat 5 and outlet valve seat 6 between and float, valve rod 3 is arranged on the valve of valve bodyIn bar hole, complete switch motion with driving spheroid 4. As shown in Figure 3, the import sphere of spheroid 4 is establishedHave through hole 4-1, through hole 4-1 communicates with the runner of spheroid 4, has increased like this circulation path of medium,Fluid resistance while having reduced ball valve switch, thus the nowed forming of medium improved, reduce pressureThe vibration producing when variation and noise, make ball valve switch action more steady; Spheroid 4 is through loss of weightProcess, to alleviate the weight of spheroid, and then alleviated the own wt of valve, loss of weight ball after treatmentPlatform is formed on body 4 tops and bottom, is provided with a boss on top platform, in this boss, is provided withKeyway, keyway is connected with the connecting key of valve rod 3 bottoms, and valve rod 3 drives spheroid 4 by this connecting keyRotate; In spheroid 4 bottom platform, be provided with reinforcement 4-3, to ensure spheroid after loss of weight is processed4 strength and stiffness; The end face of spheroid 4 is provided with an intercommunicating pore 4-2, and intercommunicating pore 4-2 is by spheroid4 runner is communicated with the body cavity in valve body 1, can keep the pressure of spheroid runner and body cavityBalance, intercommunicating pore 4-2 is clear opening.
Below in conjunction with the seal ball-valve in the embodiment of the present invention 1, describe in detail and adopt this ball valveThe running status of ball valve and the flow process of medium when standard-sized sheet and complete shut-down.
As shown in Figure 1, ball valve in the time of full-gear, spheroid 4 and import valve seat 5, outlet valveSeat 6 respectively contact forms sealing surface, fluid media (medium) order by end cap 2, import valve seat 5, spheroid 4,Runner in outlet valve seat 6 and valve body 1, can normally circulate, and also can protect import valve seat simultaneously5 with outlet valve seat 6 sealing surfaces. And medium can via through holes 4-1 and intercommunicating pore 4-2 streamEnter or flow out in the body cavity in valve body 1, to keep the pressure balance of spheroid runner and body cavity.
Drive spheroid 4 to complete after closing motion through valve rod 3, as shown in Figure 2, ball valve is in complete shut-downState, fluid media (medium) sequential flow is logical by spheroid 4 through end cap 2 inner flow passages, import valve seat 5 runnersHole 4-1 enters in the runner of spheroid 4, and under pressure medium effect, spheroid 4 produces certain displacementAnd be pressed on outlet valve seat 6, form ball face sealing. And medium can be through the runner of spheroid 4And intercommunicating pore 4-2 flows to or flows out in the body cavity in valve body 1, to keep spheroid runner and valve bodyThe pressure balance of inner chamber.
Embodiment 2
The embodiment of the present invention provides a kind of seal ball-valve, as shown in Figure 1, comprising: by valve body1 and the whole valve body structure that forms of end cap 2, valve rod 3, spheroid 4, import valve seat 5, outlet valve seat6, import valve seat 5 and outlet valve seat 6 are arranged in the cavity of valve body, and spheroid 4 is in import valve seat 5And between outlet valve seat 6 and float, valve rod 3 is arranged in the valve rod hole of valve body with drive ballBody 4 completes switch motion. As shown in Figure 3, the import sphere of spheroid 4 is provided with through hole 4-1, through hole4-1 communicates with the runner of spheroid 4, has increased like this circulation path of medium, has reduced ball valve switchTime fluid resistance, thereby improved the nowed forming of medium, what reduced to produce when pressure changes shakesMove and noise, make ball valve switch action more steady; Spheroid 4 is through loss of weight processing, to alleviate ballThe weight of body, and then alleviated the own wt of valve, loss of weight spheroid after treatment 4 tops and bottomForm platform, on top platform, be provided with a boss, in this boss, be provided with keyway, keyway and valveThe connecting key of bar 3 bottoms connects, and valve rod 3 drives spheroid 4 to rotate by this connecting key; 4 ends of spheroidOn portion's platform, be provided with reinforcement 4-3, to ensure the strength and stiffness of spheroid 4 after loss of weight is processed;The end face of spheroid 4 is provided with an intercommunicating pore 4-2, and intercommunicating pore 4-2 is by the runner of spheroid 4 and valve body 1In body cavity be communicated with, the pressure balance that can keep spheroid runner and body cavity, intercommunicating pore 4-2It is clear opening. Import valve seat 5 adopts different materials from outlet valve seat 6, and import valve seat 5 adopts poly-Tetrafluoroethene material, outlet valve seat 6 adopts enhanced polytetrafluoroethylene material, close due to this ball valveEnvelope is to be completed by spheroid 4 and the ball face sealing that outlet valve seat 6 forms, and outlet valve seat 6 has resistance to heightWarm nature energy, makes this ball valve can ensure sealing property in the time of high temperature. And spheroid 4 inlet surface placesThrough hole 4-1 does not affect the sealing property of ball valve.
As shown in Figure 4, valve stem sleeve 7 is positioned at the valve rod hole of valve body 1 and is placed on valve rod 3,And adopt self-lubricating design, on valve stem sleeve 7, be provided with multiple axle sleeve through hole 7-1 with by valve stem sleeve7 inner headed face and periphery are communicated with, and axle sleeve through hole 7-1 is clear opening and is uniformly distributed. Have certainlyValve stem sleeve 7 coefficient of frictions of lubricating function are little, and anti-wear performance is good, the behaviour while having reduced switching ballMake moment of torsion, make switch motion steady, the phenomenon that can avoid valve rod 3 places to sting axle simultaneously. Meanwhile,Feature lightweight, long service life that valve stem sleeve 7 has can form and turn in ball valve switch processMove film, reduce valve rod 3 places vibration, reduce noise, play the effect of protection valve rod 3.
Below in conjunction with the seal ball-valve in the embodiment of the present invention 1, describe in detail and adopt this ball valveThe running status of ball valve and the flow process of medium when standard-sized sheet and complete shut-down.
As shown in Figure 1, ball valve in the time of full-gear, spheroid 4 and import valve seat 5, outlet valveSeat 6 respectively contact forms sealing surface, fluid media (medium) order by end cap 2, import valve seat 5, spheroid 4,Runner in outlet valve seat 6 and valve body 1, can normally circulate, and also can protect import valve seat simultaneously5 with outlet valve seat 6 sealing surfaces. And medium can via through holes 4-1 and intercommunicating pore 4-2 streamEnter or flow out in the body cavity in valve body 1, to keep the pressure balance of spheroid runner and body cavity.Meanwhile, the medium axle sleeve through hole 7-1 on valve stem sleeve 7 that can flow through, plays the effect of self-lubricating.
Drive spheroid 4 to complete after closing motion through valve rod 3, as shown in Figure 2, ball valve is in complete shut-downState, fluid media (medium) sequential flow is logical by spheroid 4 through end cap 2 inner flow passages, import valve seat 5 runnersHole 4-1 enters in the runner of spheroid 4, and under pressure medium effect, spheroid 4 produces certain displacementAnd be pressed on outlet valve seat 6, form ball face sealing. And medium can be through the runner of spheroid 4And intercommunicating pore 4-2 flows to or flows out in the body cavity in valve body 1, to keep spheroid runner and valve bodyThe pressure balance of inner chamber. Meanwhile, the medium axle sleeve through hole 7-1 on valve stem sleeve 7 that can flow through,In ball valve switch process, can form transfer membrane at valve stem sleeve 7 surfaces externally and internallies, shake to reduce valve rod 3 placesMoving, reduce noise, play the effect of protection valve rod 3.
In addition, in description of the invention, it will be appreciated that, term 'fornt', 'back'," on ", orientation or the position relationship of the instruction such as D score " top ", " bottom " be baseIn orientation shown in the drawings or position relationship, be only that the present invention for convenience of description and simplification are retouchedState, instead of instruction or the hint device of indication or element must have specific orientation, withSpecific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
The above, be only two kinds of detailed description of the invention of the present invention, but protection of the present inventionScope is not limited to this, and any those skilled in the art of being familiar with disclose in the present inventionTechnical scope in, can expect easily change or replace, all should be encompassed in protection of the present inventionWithin scope. Therefore, protection scope of the present invention should be with the protection domain of described claimBe as the criterion.
Claims (10)
1. a seal ball-valve, comprise valve body (1), valve rod (3), spheroid (4), import valve seat (5),Outlet valve seat (6), is characterized in that:
The import sphere of described spheroid (4) is provided with through hole (4-1), described through hole (4-1) and instituteThe runner of stating spheroid (4) communicates;
The top of described spheroid (4), through loss of weight processing, forms platform, is provided with boss on platform,In described boss, be provided with keyway, described keyway is connected with the connecting key of described valve rod (3) bottom;
The bottom of described spheroid (4), through loss of weight processing, forms platform.
2. seal ball-valve according to claim 1, is characterized in that:
The bottom platform of described spheroid (4) is provided with reinforcement (4-3).
3. seal ball-valve according to claim 1, is characterized in that:
The end face of described spheroid (4) is provided with one or more intercommunicating pores (4-2), described intercommunicating pore(4-2) runner of described spheroid (4) is communicated with the body cavity in described valve body (1).
4. seal ball-valve according to claim 3, is characterized in that:
Described intercommunicating pore (4-2) is clear opening.
5. according to the seal ball-valve described in claim 1-4 any one, it is characterized in that:
Also comprise valve stem sleeve (7), described valve stem sleeve (7) is positioned at the valve rod of described valve body (1)In hole, and be placed on described valve rod (3).
6. seal ball-valve according to claim 5, is characterized in that:
Described valve stem sleeve (7) is provided with one or more axle sleeve through holes (7-1), and described axle sleeve is logicalHole (7-1) is communicated with the inner headed face of described valve stem sleeve (7) and periphery.
7. seal ball-valve according to claim 6, is characterized in that:
Described axle sleeve through hole (7-1) is for being uniformly distributed.
8. seal ball-valve according to claim 6, is characterized in that:
Described axle sleeve through hole (7-1) is clear opening.
9. according to the seal ball-valve described in claim 1-8 any one, it is characterized in that:
The material of described import valve seat (5) is polytetrafluoroethylene (PTFE).
10. seal ball-valve according to claim 9, is characterized in that:
The material of described outlet valve seat (6) is enhanced polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610140008.7A CN105587885B (en) | 2016-03-11 | 2016-03-11 | Sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610140008.7A CN105587885B (en) | 2016-03-11 | 2016-03-11 | Sealing ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105587885A true CN105587885A (en) | 2016-05-18 |
| CN105587885B CN105587885B (en) | 2024-05-28 |
Family
ID=55927685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610140008.7A Active CN105587885B (en) | 2016-03-11 | 2016-03-11 | Sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105587885B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972241A (en) * | 2016-07-14 | 2016-09-28 | 昆山维萨阀门有限公司 | Semi-contact type sealing ball valve |
| CN107740869A (en) * | 2017-11-24 | 2018-02-27 | 航天长征化学工程股份有限公司 | Noise reduction ball valve |
| CN107917229A (en) * | 2017-12-01 | 2018-04-17 | 航天长征化学工程股份有限公司 | Silent ball valve |
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| CN107917229A (en) * | 2017-12-01 | 2018-04-17 | 航天长征化学工程股份有限公司 | Silent ball valve |
| CN107917229B (en) * | 2017-12-01 | 2024-03-26 | 航天长征化学工程股份有限公司 | Mute ball valve |
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