CN101165375A - Two-way hard seal butterfly valve - Google Patents
Two-way hard seal butterfly valve Download PDFInfo
- Publication number
- CN101165375A CN101165375A CNA2006100973586A CN200610097358A CN101165375A CN 101165375 A CN101165375 A CN 101165375A CN A2006100973586 A CNA2006100973586 A CN A2006100973586A CN 200610097358 A CN200610097358 A CN 200610097358A CN 101165375 A CN101165375 A CN 101165375A
- Authority
- CN
- China
- Prior art keywords
- valve
- ring
- valve body
- butterfly
- valve 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.)
- Pending
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
This invention provides a bidirectional sealing butterfly valve. It includes valve body, butterfly plate, valve support, clamping ring, clamping plate and sealing ring. The inner cavity of the valve body is arranged with projection. The valve support is fixed on the projection through clamping ring. The valve support and valve body are sealed by o shaped ring. The clamping ring and valve body are also sealed by the o shaped ring. The sealing ring is assembled on the butterfly plate through clamping plate. Elastic gasket is arranged between the valve support and projection of valve body. The end face of clamping ring contacting the valve support has pressure groove. Several connecting openings are evenly distributed along the radial direction of the pressure groove. This invention is simple and convenient.
Description
Affiliated technical field
The present invention relates to a kind of butterfly valve, especially a kind of butterfly valve of realizing two-way hard seal.
Background technique
The three eccentric hard seal butterfly valves that present metallurgy industry generally uses, when forward seals, because the existence of three off-centre, butterfly plate is under the effect of pressure medium, to the direction distortion that helps sealing, make seal ring press to valve seat, have the tight more sealing function in pass more, sealing effect is good, but when oppositely sealing, on the one hand because butterfly plate under the effect of pressure medium, orientedly is unfavorable for the direction distortion that seals, on the other hand, owing to when assembling, unavoidably have the gap between valve shaft and the butterfly plate axle bed, under the pressure medium effect, make seal ring that the trend that breaks away from valve seat be arranged, can not realize two way sealed.
Summary of the invention
Can not realize the deficiency of two way sealed for overcoming existing three eccentric hard seal butterfly valves, the invention provides a kind of two-way hard seal butterfly valve.
The technological scheme that its technical problem of solution of the present invention adopts is a kind of two-way hard seal butterfly valve, comprise valve body, butterfly plate, valve seat, trim ring, pressing plate, seal ring, body cavity is processed with boss, valve seat is fixed on the boss of valve body by trim ring, pass through seal with O ring between valve seat and valve body, trim ring and the valve body, seal ring is installed on the butterfly plate by pressing plate, elastic washer also is housed between the boss of valve seat and valve body, the end face that trim ring contacts with valve seat has pressure tank, a plurality of UNICOMs of pressure tank upper edge radial equipartition mouth.
The invention has the beneficial effects as follows simple in structurely, easy to process, can realize reliable two-way hard seal.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is embodiment's a sectional structural map;
Fig. 2 is the partial enlarged drawing at I place among Fig. 1.
Among the figure: 1. valve body; 2. trim ring; 3. pressure tank; 4. UNICOM's mouth; 5. seal ring; 6. pressing plate; 7. butterfly plate; 8. valve seat; 9. elastic washer.
Embodiment
As shown in Figure 1, 2, a kind of bidirectional sealed butterfly valve, comprise valve body 1, butterfly plate 7, valve seat 8, trim ring 2, pressing plate 6, seal ring 5, valve body 1 inner chamber is processed with boss, valve seat 8 is fixed on the boss of valve body 1 by trim ring 2, pass through seal with O ring between valve seat 8 and valve body 1, trim ring 2 and the valve body 1, seal ring 5 is installed on the butterfly plate 7 by pressing plate 6, elastic washer 9 also is housed between the boss of valve seat 8 and valve body 1, the end face that trim ring 2 contacts with valve seat 8 has pressure tank 3, a plurality of UNICOMs of pressure tank 3 upper edge radial equipartitions mouth 4.Exist under the backpressure, be when being the high pressure side on the left of Fig. 1, medium enters the pressure tank 3 of trim ring 2 by the UNICOM's mouth 4 on the trim ring 2, pressure action of medium is at the left surface of valve seat, simultaneously, because the existence of elastic washer 9 moves right valve seat 8, can eliminate distortion and the gap between valve shaft and butterfly plate 7 axle beds the influence of butterfly plate 7 like this, realize reliable two way sealed sealing.
Claims (1)
1. two-way hard seal butterfly valve, comprise valve body, butterfly plate, valve seat, trim ring, pressing plate, seal ring, body cavity is processed with boss, valve seat is fixed on the boss of valve body by trim ring, by seal with O ring, seal ring is installed on the butterfly plate by pressing plate, it is characterized in that: elastic washer also is housed between the boss of described valve seat and valve body between valve seat and valve body, trim ring and the valve body, the end face that described trim ring contacts with valve seat has pressure tank, a plurality of UNICOMs of pressure tank upper edge radial equipartition mouth.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2006100973586A CN101165375A (en) | 2006-10-19 | 2006-10-19 | Two-way hard seal butterfly valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2006100973586A CN101165375A (en) | 2006-10-19 | 2006-10-19 | Two-way hard seal butterfly valve |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101165375A true CN101165375A (en) | 2008-04-23 |
Family
ID=39334182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2006100973586A Pending CN101165375A (en) | 2006-10-19 | 2006-10-19 | Two-way hard seal butterfly valve |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101165375A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102537381A (en) * | 2012-02-13 | 2012-07-04 | 石特阀门股份有限公司 | Two-way hard sealing butterfly valve |
CN115654156A (en) * | 2022-11-14 | 2023-01-31 | 大连船用阀门有限公司 | Bidirectional-sealing low-torque triple-eccentric ventilation butterfly valve |
-
2006
- 2006-10-19 CN CNA2006100973586A patent/CN101165375A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102537381A (en) * | 2012-02-13 | 2012-07-04 | 石特阀门股份有限公司 | Two-way hard sealing butterfly valve |
CN115654156A (en) * | 2022-11-14 | 2023-01-31 | 大连船用阀门有限公司 | Bidirectional-sealing low-torque triple-eccentric ventilation butterfly valve |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103591347A (en) | Magnetic force type emergency release valve | |
CN101165375A (en) | Two-way hard seal butterfly valve | |
CN202746629U (en) | Double soft sealing flat-plate gate valve | |
CN200958616Y (en) | Two-way hard-sealed butterfly valve | |
CN203906425U (en) | Air-control three-way reversing valve | |
CN201496579U (en) | Valve seat structure used for triple eccentric metal hard sealed butterfly valve | |
CN101451617A (en) | Two-way sealing butterfly valve | |
CN201535238U (en) | Pump head of positive displacement pump | |
CN201078338Y (en) | Supercharging break water pump | |
CN202100732U (en) | Double-eccentric dual-sealing butterfly valve | |
CN210397525U (en) | Brake pump | |
CN203421190U (en) | Multi-sealing spherical butterfly valve | |
CN201265516Y (en) | Sealing structure for membrane pump | |
CN202158209U (en) | Floating-seat two-way hard sealed butterfly valve | |
CN201844036U (en) | Buttery valve with U-shaped sealing ring | |
CN215806377U (en) | Eccentric butterfly valve with double-seal structure | |
CN203868368U (en) | V-shaped sealing device for rhombic valve | |
CN204592324U (en) | A kind of novel soft sealing butterfly valve | |
CN217762181U (en) | Negative pressure diaphragm valve | |
CN100375856C (en) | Balance type valve of electric valve | |
CN215172349U (en) | Butterfly valve seat | |
CN210218776U (en) | Reverse sealing automatic compensation eccentric half ball valve | |
CN220891110U (en) | Multi-layer gasket pressing cage structure | |
JP3075790U (en) | Gas control module opening and closing mechanism | |
CN217108228U (en) | Mechanical valve structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080423 |