CN2400652Y - Composite gasket of ball valve - Google Patents
Composite gasket of ball valve Download PDFInfo
- Publication number
- CN2400652Y CN2400652Y CN 99258199 CN99258199U CN2400652Y CN 2400652 Y CN2400652 Y CN 2400652Y CN 99258199 CN99258199 CN 99258199 CN 99258199 U CN99258199 U CN 99258199U CN 2400652 Y CN2400652 Y CN 2400652Y
- Authority
- CN
- China
- Prior art keywords
- ball valve
- ring
- rubber washer
- gasket
- plane
- 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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Abstract
The utility model discloses the structural design of a composite sealing pad used for a valve core of a ball valve. The composite sealing pad (3) is composed of a polytetrafluorethylene gasket (2) and a rubber gasket (1). The composite sealing pad not only has the advantages of good sealing performance and long service life, but also has the characteristic that a ball valve can rotate flexibly.
Description
The utility model relates to a kind of sealing gasket that is used for ball valve, specifically, relates to the structural design category of ball valve core sealing gasket.
In water supply, hot duct system, because of having good sealing property, ball valve is used widely, and the sealing effect of ball valve is how, depends primarily on the sealing of ball valve gasket.The sealing gasket of existing ball valve is made with teflon, and the similar packing ring of sealing gasket shape is an inclined-plane contact one side with ball valve core, or concave spherical surface, inclined-plane or recessed ball are close to ball valve core, and another side is close on valve body or the valve gap inwall, makes ball valve reach sealing effect.Because the sealing gasket resiliently deformable made of teflon is little, it is big to give tight power, and ball valve rotates dumbly when therefore using, and opening resistance is big, and feel is also heavy.
The purpose of this utility model will design a kind of good airproof performance exactly, long service life, and can make ball valve rotate ball valve gasket flexibly.
Specific design scheme of the present utility model is:
Adopt rubber and two kinds of materials of teflon to make composite gland bush.Make the packing ring that an one side has the inclined-plane with rubber, make the interior ring of rubber washer [1] side be lower than the outer shroud side, a sticking polytetrafluoroethylene gasket [2] on the rubber washer inclined-plane, for making composite gland bush more firm, the ring side is provided with the groove ring one in it in upper edge, rubber washer inclined-plane, making an one side with teflon is concave spherical surface in addition, another side is provided with the packing ring of a circle flange along ring side in it, make its flange just in time with the rubber washer inclined-plane on the groove ring match, rubber washer and polytetrafluoroethylene gasket closely are integrated, make a kind of composite gland bush [3].
The composite gland bush [3] of the utility model design is located at (see figure 1) between the valve body [4] of ball valve or valve gap [3] and the spool [6], and the polytetrafluoroethylene gasket of composite gland bush [3] is close to spool [6], and its rubber washer abuts in valve body or valve gap inwall.Therefore composite gland bush has increased resiliently deformable than polytetrafluoroethylene sealing gasket, reduces and gives tight power, and have the advantages of good abrasion performance.
Description of drawings:
Fig. 1, the composite gland bush structure sectional view in valve;
Fig. 2, composite gland bush front view;
Fig. 3, be the cross-sectional configuration view of Fig. 2.
Among the figure: the 1-rubber washer; The 2-polytetrafluoroethylene gasket; The 3-composite gland bush; The 4-valve body; The 5-valve gap; The 6-spool.
Claims (2)
1. sealing gasket that is used for ball valve core, it is characterized in that making the packing ring that an one side has the inclined-plane with rubber, make the interior ring of rubber washer side be lower than the outer shroud side, the ring side is provided with the groove ring one in it in upper edge, rubber washer inclined-plane, making an one side with teflon is concave spherical surface in addition, another side along in it the ring side be provided with one the circle flange packing ring, make its flange just in time with the rubber washer inclined-plane on the groove ring match, rubber washer and polytetrafluoroethylene gasket closely are integrated.
2. the sealing gasket of ball valve core according to claim 1 is characterized in that it being to be composited by rubber washer and polytetrafluoroethylene gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258199 CN2400652Y (en) | 1999-12-29 | 1999-12-29 | Composite gasket of ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258199 CN2400652Y (en) | 1999-12-29 | 1999-12-29 | Composite gasket of ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2400652Y true CN2400652Y (en) | 2000-10-11 |
Family
ID=34040888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99258199 Expired - Fee Related CN2400652Y (en) | 1999-12-29 | 1999-12-29 | Composite gasket of ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2400652Y (en) |
-
1999
- 1999-12-29 CN CN 99258199 patent/CN2400652Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |