CN203115132U - Two-way sealing three-eccentric center butterfly valve - Google Patents
Two-way sealing three-eccentric center butterfly valve Download PDFInfo
- Publication number
- CN203115132U CN203115132U CN 201320159525 CN201320159525U CN203115132U CN 203115132 U CN203115132 U CN 203115132U CN 201320159525 CN201320159525 CN 201320159525 CN 201320159525 U CN201320159525 U CN 201320159525U CN 203115132 U CN203115132 U CN 203115132U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- sealing
- shaft
- sealing seat
- 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
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a two-way sealing three-eccentric center butterfly valve. The two-way sealing three-eccentric center butterfly valve comprises a valve body, a valve clack and a valve rod. The valve clack is rotatably arranged inside a valve cavity of the valve body through the valve rod. A valve body sealing surface is arranged on the inner wall of the valve cavity of the valve body. A sealing seat is arranged on the valve clack. When the butterfly valve is closed, a sealing surface of the sealing seat is in tight fit with the valve body sealing surface. The two-way sealing three-eccentric center butterfly valve is characterized in that the valve body sealing surface is an oblique surface, an oblique angle of the oblique surface is 19-21 degrees, the sealing surface of the sealing seat is arranged on a narrow type annular protrusion of an outer circle of the sealing seat, the sealing seat is pressed and fixed on the valve clack through a pressing plate, and the sealing seat is made of a high-elasticity nickel base alloy material. The two-way sealing three-eccentric center butterfly valve can better seal in the flow opening direction and the flow closing direction, and therefore the range of application of the two-way sealing three-eccentric center butterfly valve is enlarged.
Description
Technical field
The utility model relates to a kind of improvement invention of three eccentric butterfly valve.
Background technique
Three eccentric butterfly valve is that the valve rod axle center is departed from flap center and valve body center simultaneously, and sealing pair is the butterfly valve of oblique cone.Three eccentric butterfly valve is widely used on the industrial pipelines such as metallurgy, electric power, petrochemical industry and plumbing and urban construction, makes to regulate flow and carries the cutout body and use.But a shortcoming of three eccentric butterfly valve is that can only close direction at stream has better seal.
Summary of the invention
In view of the problem that present known technology exists, the technical problems to be solved in the utility model is to be to provide a kind of opening on the both direction of stream pass at stream can both keep better sealing, improves the two way sealed three eccentric butterfly valve of Applicable scope.
The utility model is implemented by the following technical programs:
The two way sealed three eccentric butterfly valve, comprise valve body, flap and valve rod, flap is by valve rod rotatable setting in the valve pocket of valve body, and the valve pocket inwall of valve body is provided with valve body sealing surface, and described flap is provided with sealing seat, when butterfly valve cuts out, sealing seat sealing surface and valve body sealing surface fit tightly, and it is characterized in that: valve body sealing surface is the inclined-plane, and the oblique angle, inclined-plane is 19-21o, the sealing seat sealing surface is located on the narrow type annular projection of sealing seat cylindrical, and sealing seat is pressed abd fixed on the flap by pressing plate.Described sealing seat adopts the high elasticity nickel-bass alloy material.Described valve rod is made up of last valve shaft and the lower valve shaft of coaxial setting, and last valve shaft is slidingly connected in the valve body upper shaft hole by upper bearing (metal), and lower valve shaft is slidingly connected in the valve body lower shaft hole by lower bearing.Last lower valve shaft is splined shaft, and splined hole was connected with last lower valve shaft formation spline about flap was provided with.The valve body upper shaft hole is provided with packing seal, and the valve body lower shaft hole is provided with seal ring seal.
In the technique scheme, the assurance three eccentric butterfly valve is opened on the both direction of stream pass at stream and can both be kept the key problem in technology of better sealing to be: 1. valve body sealing surface is the inclined-plane, and the oblique angle, inclined-plane is controlled at 19-21o; 2. the sealing seat sealing surface is located on the narrow type annular projection of sealing seat cylindrical; 3. sealing seat adopts the high elasticity nickel-bass alloy material, changes traditional stainless steel and adds graphite grazing; 4. splined hole was connected with last lower valve shaft formation spline about flap was provided with, and spline connects can eliminate the fit up gap to greatest extent, makes the flap operating position accurate, guarantees that sealing is stable.In addition, it is more flexible that the setting of metal (upper is rotated valve rod, and packing seal and seal ring seal reduce the leakage rate of valve.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the I portion enlarged view of Fig. 1.
Embodiment
Describe relevant details and the working principle of the utility model specific embodiment in detail below in conjunction with accompanying drawing:
As shown in the figure, two way sealed three eccentric butterfly valve of the present utility model, comprise valve body 3, flap 7 and valve rod (valve rod is made up of last valve shaft 1 and the lower valve shaft 9 of coaxial setting), flap 7 is by valve rod rotatable setting in the valve pocket of valve body 3, the valve pocket inwall of valve body 3 is provided with valve body sealing surface 8, valve body sealing surface 8 is the inclined-plane, oblique angle, inclined-plane a is 19-21o, described flap 7 is provided with sealing seat 5, when butterfly valve cuts out, sealing seat sealing surface and valve body sealing surface fit tightly, the sealing seat sealing surface is located on the narrow type annular projection 12 of sealing seat 5 cylindricals, and sealing seat 5 is pressed abd fixed on the flap 7 by pressing plate 6, and described sealing seat 5 adopts the high elasticity nickel-bass alloy material, last valve shaft 1 is slidingly connected in valve body 3 upper shaft holes by upper bearing (metal) 4, lower valve shaft 9 is slidingly connected in valve body 3 lower shaft holes by lower bearing 10, and last lower valve shaft is splined shaft, and splined hole was connected with last lower valve shaft formation spline about flap 7 was provided with, the valve body upper shaft hole is provided with packing seal 2, and the valve body lower shaft hole is provided with seal ring 11 sealings.
Claims (5)
1. two way sealed three eccentric butterfly valve, comprise valve body, flap and valve rod, flap is by valve rod rotatable setting in the valve pocket of valve body, and the valve pocket inwall of valve body is provided with valve body sealing surface, and described flap is provided with sealing seat, when butterfly valve cuts out, sealing seat sealing surface and valve body sealing surface fit tightly, and it is characterized in that: valve body sealing surface is the inclined-plane, and the oblique angle, inclined-plane is 19-21o, the sealing seat sealing surface is located on the narrow type annular projection of sealing seat cylindrical, and sealing seat is pressed abd fixed on the flap by pressing plate.
2. two way sealed three eccentric butterfly valve as claimed in claim 1 is characterized in that: described sealing seat employing high elasticity nickel-bass alloy material.
3. two way sealed three eccentric butterfly valve as claimed in claim 1, it is characterized in that: described valve rod is made up of last valve shaft and the lower valve shaft of coaxial setting, last valve shaft is slidingly connected in the valve body upper shaft hole by upper bearing (metal), and lower valve shaft is slidingly connected in the valve body lower shaft hole by lower bearing.
4. two way sealed three eccentric butterfly valve as claimed in claim 3 is characterized in that: going up lower valve shaft is splined shaft, and flap is provided with up and down that splined hole is connected with last lower valve shaft formation spline.
5. two way sealed three eccentric butterfly valve as claimed in claim 3, it is characterized in that: the valve body upper shaft hole is provided with packing seal, and the valve body lower shaft hole is provided with seal ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320159525 CN203115132U (en) | 2013-04-02 | 2013-04-02 | Two-way sealing three-eccentric center butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320159525 CN203115132U (en) | 2013-04-02 | 2013-04-02 | Two-way sealing three-eccentric center butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115132U true CN203115132U (en) | 2013-08-07 |
Family
ID=48895480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320159525 Expired - Fee Related CN203115132U (en) | 2013-04-02 | 2013-04-02 | Two-way sealing three-eccentric center butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115132U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937652A (en) * | 2016-05-25 | 2016-09-14 | 江苏中昊船用阀门制造有限公司 | Adjustable type high-pressure-resisting three-eccentric center butterfly valve |
| CN105987182A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Anti-corrosion eccentric butterfly valve three-eccentric-center butterfly valve |
| CN105987183A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Maintenance-free high-pressure-resistant three-eccentric-center butterfly valve |
-
2013
- 2013-04-02 CN CN 201320159525 patent/CN203115132U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937652A (en) * | 2016-05-25 | 2016-09-14 | 江苏中昊船用阀门制造有限公司 | Adjustable type high-pressure-resisting three-eccentric center butterfly valve |
| CN105987182A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Anti-corrosion eccentric butterfly valve three-eccentric-center butterfly valve |
| CN105987183A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Maintenance-free high-pressure-resistant three-eccentric-center butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203115132U (en) | Two-way sealing three-eccentric center butterfly valve | |
| CN204459195U (en) | The hard seal butterfly valve that a kind of Double-clack is board-like | |
| CN205504042U (en) | Dark manual wafer valve of pole | |
| CN201621307U (en) | Non-rising stem butterfly knife gate valve | |
| CN204784789U (en) | There is not umbrella tooth transmission soft seal gate valve that card hinders | |
| CN204729643U (en) | A kind of available valve clack cover carries out the cast steel stop valve of upper sealing | |
| CN206280518U (en) | A kind of two way seal gate valve | |
| CN203784351U (en) | Ball valve with flanges used for hospital oxygen transmission | |
| CN105179713A (en) | Ship both-way sealing and double-eccentric butterfly valve sealing structure | |
| CN207864638U (en) | Teflon seal butterfly valve | |
| CN204493747U (en) | A kind of bidirectional sealed butterfly valve | |
| CN205780983U (en) | A kind of high-pressure heavy-caliber flat-plate gate | |
| CN205824208U (en) | A kind of hermetically sealed butterfly valve of novel big orifice | |
| CN204717011U (en) | A kind of centre-pivoted butterfly valve of adjustable gradually tight arc sealing surface | |
| CN210716002U (en) | Double-eccentric butterfly valve with high sealing performance | |
| CN203743476U (en) | Pollution-free metal membrane seal ball valve | |
| CN203488723U (en) | Fluid stop valve | |
| CN203074538U (en) | Damping mechanism | |
| CN216143199U (en) | Four-eccentric all-metal hard sealing butterfly valve | |
| CN205908769U (en) | Modified butterfly valve | |
| CN219866312U (en) | Butterfly valve seat | |
| CN206145152U (en) | Multi -level two -way butterfly valve sealed firmly | |
| CN206972936U (en) | A kind of butterfly valve | |
| CN205896198U (en) | Butterfly type stop valve | |
| CN204004471U (en) | A kind of butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20140402 |