CN2252921Y - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN2252921Y CN2252921Y CN 96205962 CN96205962U CN2252921Y CN 2252921 Y CN2252921 Y CN 2252921Y CN 96205962 CN96205962 CN 96205962 CN 96205962 U CN96205962 U CN 96205962U CN 2252921 Y CN2252921 Y CN 2252921Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- ball
- stainless
- ball 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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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a ball valve which is mainly characterized in that the ball valve comprises a right stainless valve seat and a left stainless valve seat which are provided with hollow hemispherical cross sections; after a valve cap, a valve body and a ball core are pressed and assembled, the right stainless valve seat and the left stainless valve seat contact the ball core in an elastic sealing way. Furthermore, a stainless valve seat has the advantages of corrosion resistance and high temperature resistance and fire resistance. Therefore, the ball valve which comprises the valve seat has the advantages of high temperature resistance and safety.
Description
The utility model relates to a kind of ball valve.
Ball valve has a left side and right two valve seats, because the ball core of ball valve is with sealing between the valve seat, therefore the valve seat of ball valve all adopts nonmetallic soft sealing material to make, at present the maximum of usefulness are teflon, this material is corrosion-resistant, and is wear-resistant, but non-refractory, more not fire-resistant, therefore the ball valve Security of this structure is relatively poor.
It is high temperature resistant that the purpose of this utility model provides a kind of energy, and the good ball valve of Safety performance.
Solving scheme of the present utility model is that stainless steel left side valve seat and the right valve seat that section is a hollow hemisphere shape is set.
The not cast steel valve seat of above-mentioned section configuration can produce the needed elastic force of maintenance sealing after compressing contact with the ball core, in addition, the stainless steel valve seat is corrosion-resistant, and is high temperature resistant, also fire-resistant, and therefore, the ball valve with this valve seat construction is high temperature resistant, and Safety performance is good.
Illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Accompanying drawing is a structural drawing of the present utility model.
As shown in the figure, ball valve described in the utility model has valve gap 1, valve body 2, ball core 3, valve shaft 4 and valve shaft sealing device 5, also being provided with section simultaneously is the stainless steel left side valve seat 6 and the right valve seat 7 of hollow hemisphere shape, in the present embodiment, left side valve seat 6 is inlaid on the valve gap 1, right valve seat 7 is inlaid on the valve body 2, and after valve gap 1, valve body 2 and 3 assemblings of ball core compressed, left valve seat 6 and right valve seat 7 were promptly with forming flexible sealing contact between the ball core 3.
Claims (1)
1, a kind of ball valve has valve gap, valve body, ball core, valve shaft and valve shaft sealing device, it is characterized in that: also having section is the stainless steel left side valve seat (6) and the right valve seat (7) of hollow hemisphere shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205962 CN2252921Y (en) | 1996-03-08 | 1996-03-08 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205962 CN2252921Y (en) | 1996-03-08 | 1996-03-08 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2252921Y true CN2252921Y (en) | 1997-04-23 |
Family
ID=33890764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96205962 Expired - Fee Related CN2252921Y (en) | 1996-03-08 | 1996-03-08 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2252921Y (en) |
-
1996
- 1996-03-08 CN CN 96205962 patent/CN2252921Y/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 |
Granted publication date: 1997.4.23 |