CN202580056U - Flange type hard sealing butterfly valve with flexible operation - Google Patents
Flange type hard sealing butterfly valve with flexible operation Download PDFInfo
- Publication number
- CN202580056U CN202580056U CN 201220148623 CN201220148623U CN202580056U CN 202580056 U CN202580056 U CN 202580056U CN 201220148623 CN201220148623 CN 201220148623 CN 201220148623 U CN201220148623 U CN 201220148623U CN 202580056 U CN202580056 U CN 202580056U
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- valve body
- valve
- valve rod
- flange
- type hard
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- Expired - Fee Related
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Abstract
The utility model discloses a flange type hard sealing butterfly valve with flexible operation. The flange type hard sealing butterfly valve comprises a valve body (5) connected to a bottom cover (1), wherein a valve rod (6) and a butterfly plate (7) are arranged inside the valve body (5); two ends of the butterfly plate (7) are in sealed connection with the valve body (5) through a sealing ring composite piece (11); one end of a valve rod (6) is connected with the bottom cover (1) through an opening circular ring (4); the other end of the valve rod (6) extends out of the valve body (5); a filler pressing plate (15) is sleeved on the valve rod (6) which extends out of the valve body (5); the filler pressing plate (15) fixed on the valve body (5) is connected with a filler (13) between the valve rod (6) and the tail end of the valve body (5) through a filler pressing sleeve (14); and the other end of the filler (13) is connected with an oil-free bearing (12) which is arranged between the valve rod (6) and the valve body (5). The flange type hard sealing butterfly valve has the beneficial effects of high temperature resistance, wear resistance, high mechanical performance and long service life.
Description
Technical field
The utility model relates to engineering systems such as being used for producer, coal gas, rock gas, LPG, town gas, cold and hot air, chemical industry smelting and generation environment-friendly and carries a kind of valve on the pipeline of various corrosivity, non-corrosive fluids medium, particularly a kind of flange-type hard seal butterfly valve of flexible operation.
Background technique
Present stage; Butterfly valve is widely used in carrying in the pipeline of various corrosivity, non-corrosive fluids medium in the engineering systems such as producer, coal gas, rock gas, LPG, town gas, cold and hot air, chemical industry smelting and generation environment-friendly, and its working principle is: the butterfly plate of butterfly valve is installed on the diametric(al) of pipeline, and the dish plate is driven by valve rod; If turn over 90 °; Just can accomplish once opening and closing,, get final product the flow of control media if change the deflection angle of dish plate.
The key that influences the quality of butterfly valve is a sealing system; Present butterfly valve seal circle adopts the rubber elasticity seal ring mostly; Yet rubber elastomer in using continuously, can produce tear, wear and tear, wear out, perforation even obscission, influence sealing effect; Often need to change the seal ring of butterfly valve, the waste of manpower financial resource and material resource.
The model utility content
To the defective of seal arrangement in the existing butterfly valve, the utility model provides a kind of flange-type hard seal butterfly valve of flexible operation.
To achieve these goals, the measure taked of the utility model is:
A kind of flange-type hard seal butterfly valve of flexible operation comprises through first screw being connected the valve body on the bottom, is provided with pad between bottom and the valve body; Be provided with valve rod in the valve body; Be fixedly connected with butterfly plate through taper pin on the valve rod, the two ends of butterfly plate are fixed with the seal ring composite members through second screw and trim ring, and butterfly plate links to each other with valve seal through the seal ring composite members; One end of valve rod links to each other with bottom through splitting annulus; The other end of valve rod passes valve body and stretches out outside the valve body, stretches out the outer valve rod of valve body and is socketed with hold-down grid outward, and hold-down grid is connected on the valve body through double-screw bolt and nut; Hold-down grid through be socketed on the valve rod the filler gland be filled in valve rod and link to each other with filler between the valve body end, the filler the other end with valve rod be set link to each other with oilless bearing between the valve body;
Said valve body is the flange-type valve body, and valve body adopts flange to be connected with pipeline;
Said filler is Expanded graphite or teflon;
The tapering of said taper pin is 1: 50;
Said double-screw bolt is isometric stud.
The beneficial effect of the utility model: high temperature resistant, resistance to wear, good mechanical property, long service life, flexible operation, convenient and strength-saving, sealability is reliable.
Description of drawings
The structural representation of Fig. 1, the utility model.
Embodiment
A kind of flange-type hard seal butterfly valve of flexible operation; Comprise through first screw 2 and be connected the valve body 5 on the bottom 1; Be provided with pad 3 between bottom 1 and the valve body 5, be provided with valve rod 6 in the valve body 5, be fixedly connected with butterfly plate 7 through taper pin 8 on the valve rod 6; The two ends of butterfly plate 7 are fixed with seal ring composite members 11 through second screw 9 with trim ring 10; Butterfly plate 7 links to each other with valve body 5 sealings through seal ring composite members 11, and an end of valve rod 6 links to each other with bottom 1 through splitting annulus 4, and the other end of valve rod 6 passes valve body 5 and stretches out outside the valve body 5; Stretch out the valve rod 6 outer hold-down grids 15 that are socketed with outside the valve body 5; Hold-down grid 15 is connected on the valve body 5 through double-screw bolt 16 and nut 17, hold-down grid 15 through be socketed on the valve rod 6 filler gland 14 be filled in valve rod 6 and link to each other with filler 13 between valve body 5 ends, filler 13 the other ends with valve rod 6 be set link to each other with oilless bearing 12 between the valve body 5; Said valve body 5 is the flange-type valve body, and valve body 5 adopts flange to be connected with pipeline; Said filler 13 is Expanded graphite or teflon; The tapering of said taper pin 8 is 1: 50; Said double-screw bolt 16 is isometric stud.
The beneficial effect of the utility model: high temperature resistant, resistance to wear, good mechanical property, long service life, flexible operation, convenient and strength-saving, sealability is reliable.
Those skilled in the art's simple change and replacement all are within the protection domain of the utility model in related domain.
Claims (5)
1. the flange-type hard seal butterfly valve of a flexible operation; Comprise through first screw (2) and be connected the valve body (5) on the bottom (1); Be provided with pad (3) between bottom (1) and the valve body (5); Be provided with valve rod (6) in the valve body (5), valve rod (6) is gone up and is fixedly connected with butterfly plate (7) through taper pin (8), it is characterized in that; The two ends of butterfly plate (7) are fixed with seal ring composite members (11) through second screw (9) and trim ring (10); Butterfly plate (7) links to each other with valve body (5) sealing through seal ring composite members (11), and an end of valve rod (6) links to each other with bottom (1) through splitting annulus (4), and the other end of valve rod (6) passes valve body (5) and stretches out outside the valve body (5); Stretch out the outer hold-down grid (15) that is socketed with of the outer valve rod (6) of valve body (5); Hold-down grid (15) is connected on the valve body (5) through double-screw bolt (16) and nut (17), hold-down grid (15) through be socketed on the valve rod (6) filler gland (14) be filled in valve rod (6) and link to each other with filler (13) between valve body (5) end, filler (13) the other end with valve rod (6) be set link to each other with oilless bearing (12) between the valve body (5).
2. the flange-type hard seal butterfly valve of a kind of flexible operation according to claim 1 is characterized in that, said valve body (5) is the flange-type valve body, and valve body (5) adopts flange to be connected with pipeline.
3. the flange-type hard seal butterfly valve of a kind of flexible operation according to claim 1 and 2 is characterized in that, said filler (13) is Expanded graphite or teflon.
4. the flange-type hard seal butterfly valve of a kind of flexible operation according to claim 3 is characterized in that, the tapering of said taper pin (8) is 1: 50.
5. the flange-type hard seal butterfly valve of a kind of flexible operation according to claim 3 is characterized in that, said double-screw bolt (16) is isometric stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220148623 CN202580056U (en) | 2012-04-10 | 2012-04-10 | Flange type hard sealing butterfly valve with flexible operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220148623 CN202580056U (en) | 2012-04-10 | 2012-04-10 | Flange type hard sealing butterfly valve with flexible operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580056U true CN202580056U (en) | 2012-12-05 |
Family
ID=47249469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220148623 Expired - Fee Related CN202580056U (en) | 2012-04-10 | 2012-04-10 | Flange type hard sealing butterfly valve with flexible operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580056U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615550A (en) * | 2013-11-04 | 2014-03-05 | 乐清市阀门厂 | Marine center type multilayer hard sealing butterfly valve |
| CN105822776A (en) * | 2016-04-15 | 2016-08-03 | 蚌埠南自仪表有限公司 | Rigid seal butterfly valve |
| CN112696514A (en) * | 2020-12-25 | 2021-04-23 | 上海百图低温阀门有限公司 | LNG (liquefied Natural gas) heat-insulating gas cylinder pressurization and pressure regulation valve for vehicle |
-
2012
- 2012-04-10 CN CN 201220148623 patent/CN202580056U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615550A (en) * | 2013-11-04 | 2014-03-05 | 乐清市阀门厂 | Marine center type multilayer hard sealing butterfly valve |
| CN105822776A (en) * | 2016-04-15 | 2016-08-03 | 蚌埠南自仪表有限公司 | Rigid seal butterfly valve |
| CN112696514A (en) * | 2020-12-25 | 2021-04-23 | 上海百图低温阀门有限公司 | LNG (liquefied Natural gas) heat-insulating gas cylinder pressurization and pressure regulation valve for vehicle |
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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: 20121205 Termination date: 20130410 |