CN202023935U - Bilateral metal hard seal butterfly valve - Google Patents
Bilateral metal hard seal butterfly valve Download PDFInfo
- Publication number
- CN202023935U CN202023935U CN2011200005755U CN201120000575U CN202023935U CN 202023935 U CN202023935 U CN 202023935U CN 2011200005755 U CN2011200005755 U CN 2011200005755U CN 201120000575 U CN201120000575 U CN 201120000575U CN 202023935 U CN202023935 U CN 202023935U
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- Prior art keywords
- valve
- valve body
- butterfly
- plate
- butterfly plate
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- Expired - Lifetime
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Abstract
A bilateral metal hard seal butterfly valve comprises a valve body. A butterfly plate is arranged in the valve body. A valve rod is arranged in the valve body and penetrates through the valve body and butterfly plate. The top end of the valve rod is connected with a driving device. The bilateral metal hard seal butterfly valve is characterized in that an annual automatic compensation valve base is arranged between the valve body and the butterfly plate and in the valve body. The inner annular lateral face of the automatic compensation valve base is provided with an inclined angle with 5 degrees to 8 degrees. A valve body press plate is fixed on a lateral face step of the valve body through a bolt. The automatic compensation valve base is pressed on an inner cavity step of the valve body through the valve body press plate. A butterfly plate press plate is fixed on the butterfly plate and presses and fixes a multilayer composite sealing washer on the butterfly plate. The inner annular lateral face of the automatic compensation valve base is attached to the multilayer composite sealing washer. The bilateral metal hard seal butterfly valve is convenient to maintain, not limited by flow direction and long in service life.
Description
Technical field
The utility model is specifically related to a kind of butterfly valve, particularly a kind of two-way pressure metal hard-sealing butterfly valve.
Background technique
Hard seal butterfly valve acts on pipeline to play a part to cut off and throttling, but the hard seal butterfly valve on the present stage market is unidirectional pressurized, the restriction of receiving the flow direction in use.Common hard seal butterfly valve can not get compensation owing to butterfly plate under the medium back flow pressure and valve body can produce relative displacement, so can produce leakage when closing pipe-line system.And because structural reason own is keeped in repair when breaking down very difficultly to it, therefore whole hard seal butterfly valve can not continue to use again, its working life is short, has increased user cost.
Summary of the invention
The utility model provides a kind of two-way pressure metal hard-sealing butterfly valve, and purpose is to solve the prior art problem, provides a kind of easy to maintenance, and is not subjected to flow to restriction, the two-way pressure metallic sealing butterfly valve of long service life.
The utility model technological scheme that adopts of dealing with problems is:
Two-way pressure metal hard-sealing butterfly valve, include valve body, butterfly plate is positioned at valve inner, valve rod runs through valve body, butterfly plate in valve body, valve stem tip is connected with drive unit, also have ring-type and compensate valve seat automatically in valve body and between valve body and butterfly plate, the interior ring side that compensates valve seat automatically has the angle of inclination.The valve body pressing plate compensates valve seat automatically and is pressed on the body cavity step by the valve body pressing plate by being bolted on the valve body side step.Be fixed with the butterfly plate pressing plate on the butterfly plate, the butterfly plate pressing plate is fixed multi-level composite sealing ring on butterfly plate, fits with multi-level composite sealing ring in the interior ring side that compensates valve seat automatically.
Described angle of inclination is 5 °～8 °.
The beneficial effects of the utility model: the interior ring side of the automatic compensation valve seat in this butterfly valve has the angle of inclination, and fit with multi-level composite sealing ring, when valve closing or unlatching, under the impact of current, compensating valve seat automatically can be along its axially mobile automatically compensating.Because automatically the ring side is the inclined-plane in the compensation valve seat, therefore in compensation valve seat moving process automatically, compensate ring side in the valve seat automatically and can keep the state of fitting all the time with multi-level composite sealing ring, make its sealing.No matter be malleation or back-pressure therefore, can not reveal in the butterfly valve.And when automatically wearing and tearing take place the compensation valve seat, compensate valve seat automatically and can be moved automatically equally and compensate.If during serious wear, only change automatic compensation valve seat and get final product with multi-level composite sealing ring, easy to maintenance.
Description of drawings
Fig. 1 is a sectional view of the present utility model;
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is further described.
Two-way pressure metal hard-sealing butterfly valve as shown in fig. 1, include valve body 1, butterfly plate 2 is positioned at valve body 1 inside, valve rod 3 runs through valve body 1, butterfly plate 2 in valve body 1, valve rod 3 tops are connected with drive unit 4, in valve body 1 and also have ring-type compensate valve seat 5 automatically between valve body 1 and butterfly plate 2, the interior ring side 51 that compensates valve seat 5 automatically has the angle of inclination, and this angle of inclination is 5 °～8 °.Valve body pressing plate 6 compensates valve seat 5 automatically and is pressed on the valve body 1 inner chamber step by valve body pressing plate 6 by being bolted on valve body 1 side step.Be fixed with butterfly plate pressing plate 7 on the butterfly plate 2, butterfly plate pressing plate 7 is fixed multi-level composite sealing ring 8 on butterfly plate 2, fits with multi-level composite sealing ring 8 in the interior ring side 51 that compensates valve seat 5 automatically.
The interior ring side 51 of the automatic compensation valve seat in this butterfly valve has the angle of inclination, and fits with multi-level composite sealing ring 8, and when valve closing or unlatching, under the impact of current, compensating valve seat 5 automatically can be along its axially mobile automatically compensating.Because automatically ring sides 51 have the angle of inclination and are the inclined-plane in the compensation valve seat 5, therefore in compensation valve seat 5 moving process automatically, compensate ring side 51 in the valve seat automatically and can keep the state of fitting all the time with multi-level composite sealing ring 8, make its sealing.No matter be malleation or back-pressure therefore, can not reveal in the butterfly valve.And when automatically wearing and tearing take place the compensation valve seat, compensate valve seat automatically and can be moved automatically equally and compensate.If during serious wear, only change automatic compensation valve seat and get final product with multi-level composite sealing ring, easy to maintenance.
Claims (2)
1. two-way pressure metal hard-sealing butterfly valve, include valve body, butterfly plate is positioned at valve inner, valve rod runs through valve body, butterfly plate in valve body, valve stem tip is connected with drive unit, it is characterized in that: also have ring-type and compensate valve seat automatically in valve body and between valve body and butterfly plate, the interior ring side that compensates valve seat automatically has the angle of inclination; The valve body pressing plate compensates valve seat automatically and is pressed on the body cavity step by the valve body pressing plate by being bolted on the valve body side step; Be fixed with the butterfly plate pressing plate on the butterfly plate, the butterfly plate pressing plate is fixed multi-level composite sealing ring on butterfly plate, fits with multi-level composite sealing ring in the interior ring side that compensates valve seat automatically.
2. the two-way pressure metal hard-sealing butterfly valve described in claim 1, it is characterized in that: described angle of inclination is 5 °～8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200005755U CN202023935U (en) | 2011-01-04 | 2011-01-04 | Bilateral metal hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200005755U CN202023935U (en) | 2011-01-04 | 2011-01-04 | Bilateral metal hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023935U true CN202023935U (en) | 2011-11-02 |
Family
ID=44848885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200005755U Expired - Lifetime CN202023935U (en) | 2011-01-04 | 2011-01-04 | Bilateral metal hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946839A (en) * | 2020-08-13 | 2020-11-17 | 浙江力诺流体控制科技股份有限公司 | Double-linked butterfly valve for isolating high-temperature flue |
-
2011
- 2011-01-04 CN CN2011200005755U patent/CN202023935U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946839A (en) * | 2020-08-13 | 2020-11-17 | 浙江力诺流体控制科技股份有限公司 | Double-linked butterfly valve for isolating high-temperature flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Xinhai Valve Manufacturing Co. Ltd Assignor: Jin Yunhe Contract record no.: 2014330000177 Denomination of utility model: Bidirectional pressure metallic hard sealing butterfly valve Granted publication date: 20111102 License type: Exclusive License Record date: 20140519 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |
|
| CX01 | Expiry of patent term |