CN201772096U - Ball valve seat - Google Patents
Ball valve seat Download PDFInfo
- Publication number
- CN201772096U CN201772096U CN2010202600981U CN201020260098U CN201772096U CN 201772096 U CN201772096 U CN 201772096U CN 2010202600981 U CN2010202600981 U CN 2010202600981U CN 201020260098 U CN201020260098 U CN 201020260098U CN 201772096 U CN201772096 U CN 201772096U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- seat body
- annular groove
- valve
- section
- 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
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a ball valve seat, which comprises a valve seat body and a polytetrafluoroethylene sealing part. An axial through hole is arranged on the valve seat body, a chamfer is disposed at the left end of the axial through hole and forms a sealing surface, an annular groove is arranged on the sealing surface, the section of the annular groove is quadrilateral, the bottom edge of the quadrilateral annular groove is perpendicular to an axis of the valve seat body, two side edges and the bottom edge form acute angles, the section of the polytetrafluoroethylene sealing part matches with the section of the groove, the polytetrafluoroethylene sealing part is embedded into the annular groove, and an outer end surface of the polytetrafluoroethylene sealing part is spherical and is higher than the sealing surface. The annular groove is arranged on the sealing surface of the metal valve seat body, the polytetrafluoroethylene sealing part is pressed into the annular groove by the aid of jacking equipment, and the polytetrafluoroethylene sealing part can not be loosened regardless of high pressure and low pressure, thereby increasing sealing property of a valve, prolonging the service life of the valve, and enhancing safety of the valve.
Description
Technical field
The utility model relates to ball valve, particularly relates to ball seat.
Background technique
Ball valve is used for blocking or connecting the medium of pipeline, is widely used in industries such as chemical industry, oil, rock gas, metallurgy.Its structure as shown in Figure 1, the valve inner of ball valve is provided with a spheroid with holes, the surface is very bright and clean, the two ends of spheroid are provided with valve seat, valve seat is made up of valve seat body and the teflon seal that is inlaid on this valve seat body, and the sphere of spheroid contacts with the teflon seal ball face sealing, during valve open, the hole on the spheroid and the axis parallel of valve form a passage; During valve closing, with the spheroid half-twist, with carrier frequency channel break, for ball valve, the sealing of spheroid and valve seat is vital by handle.
The conventional ball valve valve seat generally all is to adopt direct extrusion process to make, in the metal seat valve body that processes, insert seal valve seat, yet, according to practical experience for many years, this traditional valve seat has a shortcoming, and that is exactly under the situation of overpressure, ball valve is in the process of switch, teflon seal goes out the metal seat valve groove in the seal valve seat resilience that breaks away from sphere, thereby causes poorly sealed owing to the effect that is under pressure.
The model utility content
Technical problem to be solved in the utility model is to solve the bad problem of ball seat sealability.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted provides a kind of ball seat, comprise valve seat body and teflon seal, described valve seat body has an axial hole, the left end of described axial hole is provided with chamfering, this chamfering forms sealing surface, described sealing surface is provided with annular groove, the cross section of described annular groove is the quadrilateral shape, the axis normal of tetragonal base and valve seat body, two sides and base acutangulate, and the cross section of described teflon seal and the cross section of described groove are suitable, this teflon seal is inlaid in the described groove, and the exterior edge face is spherical shape and is higher than described sealing surface.
In the such scheme, described acute angle is 4 degree～8 degree.
In the such scheme, have pressure release passage on the valve seat body, described pressure release passage comprises axial passage and the radial passage that communicates with it, and the angle of described axial passage and valve seat body axis is 4～6 degree.
The utility model, on the sealing surface of metal seat valve body, be provided with annular groove, the cross section of annular groove is the quadrilateral shape, the axis normal of tetragonal base and valve seat body, two sides and base acutangulate, and teflon seal is pressed in the annular groove on the metal seat valve body by roof pressure equipment, like this, no matter under high pressure still is the situation of low pressure, teflon seal can not produce loosening, thereby improved the sealability of valve, improved the working life and the Safety performance of valve.
Description of drawings
Fig. 1 is the structural representation of ball valve;
Fig. 2 is the A portion enlarged view among Fig. 1;
The valve seat construction schematic representation that Fig. 3 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As Fig. 1, Fig. 2 and shown in Figure 3, the ball seat that the utility model provides comprises valve seat body 1 and teflon seal 2, Sealing 2 also can adopt RPTFE (glass reinforced TFE) or PEEK (polyether-ether-ketone) special engineering plastics material, described valve seat body 1 has an axial hole 11, the left end of described axial hole 11 is provided with chamfering, this chamfering forms sealing surface 12, described sealing surface 12 is provided with annular groove 13, the cross section of described annular groove 13 is the quadrilateral shape, the axis normal of tetragonal base and valve seat body, two sides and base acutangulate, and acute angle is 4 degree～8 degree, and the shape in this cross section is similar to trapezoidal bottom.The cross section of the cross section of described Sealing 2 and described annular groove 13 is suitable, adopt liquid roof pressure equipment in the annular groove 13 on the teflon seal 2 inserted valve seat bodies 1, liquid roof pressure equipment, model is the YFS-D type, roof pressure pressure is 1.0MPa～10MPa, and the exterior edge face 21 of Sealing 2 is spherical shape and is higher than described sealing surface 12.The sphere of Sealing 2 and the sphere of the spheroid in the ball valve match, thereby realize the sealing under the ball valve closed condition, cut off the connection of ball valve two ends medium.
Have pressure release passage on the valve seat body 1, the radial passage 15 that described pressure release passage comprises axial passage 14 and communicates with it, described axial passage 14 is 4～6 degree with the angle of valve seat body axis.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technological scheme, all fall within the protection domain of the present utility model.
Claims (3)
1. ball seat, comprise valve seat body and teflon seal, described valve seat body has an axial hole, the left end of described axial hole is provided with chamfering, this chamfering forms sealing surface, described sealing surface is provided with annular groove, the cross section that it is characterized in that described groove is the quadrilateral shape, the axis normal of tetragonal base and valve seat body, two sides and base acutangulate, the cross section of described teflon seal and the cross section of described groove are suitable, and this teflon seal is inlaid in the described groove, and the exterior edge face is spherical shape and is higher than described sealing surface.
2. ball seat as claimed in claim 1 is characterized in that described two acute angles are 4 degree～8 degree.
3. ball seat as claimed in claim 1 or 2 is characterized in that having pressure release passage on the valve seat body, and described pressure release passage comprises axial passage and the radial passage that communicates with it, and the angle of described axial passage and valve seat body axis is 4～6 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202600981U CN201772096U (en) | 2010-07-16 | 2010-07-16 | Ball valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202600981U CN201772096U (en) | 2010-07-16 | 2010-07-16 | Ball valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772096U true CN201772096U (en) | 2011-03-23 |
Family
ID=43751938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202600981U Expired - Fee Related CN201772096U (en) | 2010-07-16 | 2010-07-16 | Ball valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772096U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338229A (en) * | 2010-07-16 | 2012-02-01 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN103644298A (en) * | 2013-11-27 | 2014-03-19 | 芜湖通和汽车管路系统有限公司 | Sensor mounting base structure |
| WO2015063612A3 (en) * | 2013-10-29 | 2015-09-17 | Fisher Jeon Gas Equipment (Chengdu) Co. Ltd. | Valve seat, sealing gasket and pressure valve |
-
2010
- 2010-07-16 CN CN2010202600981U patent/CN201772096U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338229A (en) * | 2010-07-16 | 2012-02-01 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN102338229B (en) * | 2010-07-16 | 2014-12-03 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| WO2015063612A3 (en) * | 2013-10-29 | 2015-09-17 | Fisher Jeon Gas Equipment (Chengdu) Co. Ltd. | Valve seat, sealing gasket and pressure valve |
| CN103644298A (en) * | 2013-11-27 | 2014-03-19 | 芜湖通和汽车管路系统有限公司 | Sensor mounting base structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201772096U (en) | Ball valve seat | |
| CN101205977A (en) | Double sealing high pressure needle valve | |
| CN207420524U (en) | A kind of dissection type sealing ring | |
| CN203670792U (en) | Elastic filler and valve using the filler | |
| CN203322061U (en) | Sealed rotary support | |
| CN102338229B (en) | Ball valve seat and manufacturing method thereof | |
| CN105465361A (en) | High-pressure quick-opening blind plate | |
| CN207018618U (en) | A kind of airtight and watertight padding for valve rod | |
| CN201007351Y (en) | Lip sealing structure | |
| CN205745299U (en) | A kind of automobile hydraulic supports sealing ring | |
| CN106287040A (en) | A kind of triple seal union | |
| CN204647404U (en) | What a kind of roll extrusion was fixing can pressure release compound seal valve seat construction | |
| CN203162204U (en) | Two-piece internally threaded ball valve | |
| CN206338403U (en) | Multi-state sealing ring for petroleum machinery | |
| CN202883546U (en) | Compound sealing structure for air cylinder end face | |
| CN201723767U (en) | Floating ball valve | |
| CN2856628Y (en) | Hard sealed high pressure ball valve having auto compensation | |
| CN2856629Y (en) | Hard sealed high pressure ball valve | |
| CN205639612U (en) | Seal friction face is sealing washer on ball surface | |
| CN103671984A (en) | Chlorine valve of double-seal structure | |
| CN203743466U (en) | Slurry valve | |
| CN205479466U (en) | Unsteady ball valve seating structure | |
| CN103672003A (en) | High-sealing-performance corrosion-resistant fully-padded ball valve | |
| CN204099648U (en) | A kind of low moment of torsion metal hard-sealing stopcock | |
| CN216923254U (en) | Valve sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TAITE VALVE CO., LTD. Free format text: FORMER NAME: TIANTE VALVE GROUP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 323000 Zhejiang Province, Lishui City Shuige Industrial Zone Patentee after: Tete valve Limited by Share Ltd Address before: 323000 Zhejiang Province, Lishui City Industrial Zone Shuige Tiante valve Refco Group Ltd Patentee before: Tiante Valve Group Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20140716 |
|
| EXPY | Termination of patent right or utility model |