CN204344946U - A kind of protection against erosion butterfly valve - Google Patents
A kind of protection against erosion butterfly valve Download PDFInfo
- Publication number
- CN204344946U CN204344946U CN201420716845.6U CN201420716845U CN204344946U CN 204344946 U CN204344946 U CN 204344946U CN 201420716845 U CN201420716845 U CN 201420716845U CN 204344946 U CN204344946 U CN 204344946U
- Authority
- CN
- China
- Prior art keywords
- valve
- protection against
- against erosion
- flap
- butterfly valve
- 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.)
- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model provides a kind of protection against erosion butterfly valve, comprise valve body, valve rod and flap, described valve stem top connects rotating handles, and bottom is inserted in valve body, and connecting drive flap rotating open-close, the flap side being positioned at one end, medium fluid upstream when valve opening is provided with a protection against erosion bushing.The utility model structure is simple, owing to arranging protection against erosion bushing, makes swiftly flowing medium directly can not be washed into seal ring, thus ensure that the sealability of seal ring, extend the working life of butterfly valve.
Description
Technical field
The present invention relates to piping attachment technical field, particularly relate to protection against erosion butterfly valve.
Background technique
Butterfly valve is Flap valve again, is the simple modulating valve of a kind of structure, also can be used for the mode of the switch control rule of low pressure pipeline medium simultaneously.Valve butterfly valve in work refers to that closure member is disk, rotate a kind of valve reaching open and close around valve shaft, valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Especially multi-level three eccentric metal seal butterfly valve, comprise: valve body, flap, valve shaft, seal ring and seal ring pressing plate, butterfly valve bias is placed in valve body, valve shaft is eccentrically set on flap, control the folding of flap, have seal ring at the periphery of flap, seal ring seal ring pressing plate is fixed, and plays seal action when closure valve.But because the valve clack sealing ring of this valve is formed by stacking by sheet metal and graphite cake; washing away of swiftly flowing medium is subject to when valve wide open; frequent meeting is because the graphite in interlayer is washed out; make seal ring loose and cause valve to lose sealability, so limit the application in some systems of this valve.
Summary of the invention
The technical problems to be solved in the utility model is: the sealing surface of existing multi-level three eccentric metal seal butterfly valve is easily because the souring of medium loses sealing effect.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of protection against erosion butterfly valve, comprise valve body, valve rod and flap, described valve stem top connects rotating handles, bottom is inserted in valve body, and connecting drive flap rotating open-close, the flap side being positioned at one end, medium fluid upstream when valve opening is provided with a protection against erosion bushing.
The utility model beneficial effect is: structure is simple, owing to arranging protection against erosion bushing, makes swiftly flowing medium directly can not be washed into seal ring, thus ensure that the sealability of seal ring, extend the working life of butterfly valve.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
In order to understand the utility model better, illustrate content of the present utility model further below in conjunction with example, but content of the present utility model is not only confined to the following examples.
The utility model comprises valve body 1, valve rod and flap 2, described valve stem top connects rotating handles, bottom is inserted in valve body 1, and connects drive flap 2 rotating open-close, and flap 2 side being positioned at one end, medium fluid upstream when valve opening is provided with a protection against erosion bushing 3.
Owing to arranging protection against erosion bushing 3, make swiftly flowing medium directly can not be washed into seal ring, thus ensure that the sealability of seal ring, extend the working life of butterfly valve.
Claims (1)
1. a protection against erosion butterfly valve, comprise valve body, valve rod and flap, described valve stem top connects rotating handles, and bottom is inserted in valve body, and connect drive flap rotating open-close, it is characterized in that: the flap side being positioned at one end, medium fluid upstream when valve opening is provided with a protection against erosion bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716845.6U CN204344946U (en) | 2014-11-26 | 2014-11-26 | A kind of protection against erosion butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716845.6U CN204344946U (en) | 2014-11-26 | 2014-11-26 | A kind of protection against erosion butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344946U true CN204344946U (en) | 2015-05-20 |
Family
ID=53228215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716845.6U Expired - Fee Related CN204344946U (en) | 2014-11-26 | 2014-11-26 | A kind of protection against erosion butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884993A (en) * | 2017-04-13 | 2017-06-23 | 鞍山市阀门电控制造厂 | A kind of butterfly valve plate seal protecting device |
-
2014
- 2014-11-26 CN CN201420716845.6U patent/CN204344946U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884993A (en) * | 2017-04-13 | 2017-06-23 | 鞍山市阀门电控制造厂 | A kind of butterfly valve plate seal protecting device |
| CN106884993B (en) * | 2017-04-13 | 2024-03-08 | 鞍山瑞科阀门制造有限公司 | Butterfly valve plate sealing protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151126 |