CN2451831Y - Metal sealing buttetfly valve - Google Patents
Metal sealing buttetfly valve Download PDFInfo
- Publication number
- CN2451831Y CN2451831Y CN 00249933 CN00249933U CN2451831Y CN 2451831 Y CN2451831 Y CN 2451831Y CN 00249933 CN00249933 CN 00249933 CN 00249933 U CN00249933 U CN 00249933U CN 2451831 Y CN2451831 Y CN 2451831Y
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- valve body
- butterfly plate
- utility
- 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 relates to a metal sealing butterfly valve, comprising a valve body, a valve rod, a butterfly plate, a valve seat, an end cap, and a gland. The gland and the end cap are respectively fixed on the upper and the lower ends of the valve body. The butterfly plate is connected to the valve rod inside the valve body. The utility model is characterized in that the butterfly plate sealed and matched with the valve seat is an elliptical butterfly plate with a biconical surface; the sectional plane of the valve seat is J-shaped; the valve seat is arranged in a groove formed between a pressure plate and the valve body. Compared with the common metal sealing butterfly valve, the utility model overcomes the defects that the leakage occurs easily, the bearing performance is low, the abrasions are large, and the installation is limited by the ground. The utility model has the advantages of simple structure, high bearing capability, tight sealing performance, long service life, convenient operation, and flexible operation.
Description
The utility model relates to a kind of metallic sealing butterfly valve.
The butterfly plate of known metallic sealing butterfly valve is divided into two kinds, and a kind of is single conical surface, and another kind is a sphere, no matter is any, at the external pressure medium P of a side
1Effect always produces between the sealing surface of butterfly plate and valve seat and radially locks component and axial compression component down, is in locking state to guarantee butterfly plate and valve seat, thereby reaches the purpose of sealing.And this sealing is that performance is good more along with the rising of pressure medium, be a kind of be the mechanism of the sealing energy with the pressure medium.Conversely, at the external pressure medium P of opposite side
2Effect can not produce between the sealing surface of butterfly plate and valve seat and radially lock component and axial compression component, at P down
2Under the pressure effect, the reasons such as gap owing to the deflection deformation or the valve rod of valve rod cooperates with valve body can produce separation trend between the sealing surface of butterfly plate and valve seat, thereby cause leaking.
The purpose of this utility model is the above-mentioned defective that overcomes prior art, thus provide a kind of simple in structure, sealing is tight, MEDIA FLOW is to the metallic sealing butterfly valve that does not limit.
The further purpose of the utility model is to improve bearing capacity, increases the service life.
The utility model comprises valve body, valve rod, butterfly plate, valve seat, end cap and gland, and gland and end cap are separately fixed at the upper and lower end of valve body, and butterfly plate is connected on the interior valve rod of valve body, and the butterfly plate that cooperates with valve base sealing is oval bipyramid face butterfly plate.
The section of valve seat is the J type, and is arranged on by in the groove that forms between pressing plate and valve body, pressing plate by screw in valve body one side.
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is sealing principle figure of the present utility model;
Fig. 3 is the structural representation of butterfly plate.
As shown in the figure, the utility model comprises valve body 1, valve rod 2, butterfly plate 3, valve seat 4, end cap 5 and gland 6, gland 6 and end cap 5 are separately fixed at the upper and lower end of valve body 1, butterfly plate 3 is connected on the valve rod 2 in the valve body 1, and is sealed and matched with valve seat 4, and butterfly plate 3 is oval bipyramid face butterfly plate, adopt stainless steel to add the manufacturing of hard alloy material, have good corrosion-resistant, wear-resisting and compression resistance, and pressure angle is convenient to opening and closing greater than friction angle.Valve seat 4 is by Ni-based senior alloy manufacturing, have better elastic and wear resistance, its section is the J type, and be arranged on by in pressing plate 7 and 1 groove that forms 8 of valve seat, axially can not produce any displacement, radially adopt free-standing, under certain external force effect, can produce certain radial elastic displacement, it and surface of contact such as oval bipyramid face butterfly plate 3, valve body 1 and pressing plate 7 all can reach sealing.Pressing plate 7 is fixed on valve body 1 one sides by screw 9.Because the existence of 3 two face angles of butterfly plate, no matter pressure medium from which direction comes, and all can produce one and radially lock component F between the sealing surface of butterfly plate 3 and valve seat 4
gWith an axial compression component F
zThereby, guaranteed butterfly valve when closing, butterfly plate 3 is in locking state all the time with the surface of contact of valve seat 4, not influenced by any of external pressure medium, has realized two-way mechanical sealing fully.
The utility model is by above-mentioned specific design, have simple in structure, sealing is tight, bearing capacity is high, make With long advantage of life-span, owing to realized two way seal, not limited by the place, so more convenient operation, Flexibly.
Claims (3)
1, a kind of metallic sealing butterfly valve, comprise valve body, valve rod, butterfly plate, valve seat, end cap and gland, gland and end cap are separately fixed at the upper and lower end of valve body, and butterfly plate is connected on the interior valve rod of valve body, and it is characterized in that: the butterfly plate (3) that is sealed and matched with valve seat (4) is oval bipyramid face butterfly plate.
2, metallic sealing butterfly valve according to claim 1 is characterized in that: the section of valve seat (4) is the J type, and is arranged on by in the groove (8) that forms between pressing plate (7) and valve body (1).
3, metal butterfly valve according to claim 2 is characterized in that: pressing plate (7) is fixed on valve body (1) one side by screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249933 CN2451831Y (en) | 2000-11-03 | 2000-11-03 | Metal sealing buttetfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249933 CN2451831Y (en) | 2000-11-03 | 2000-11-03 | Metal sealing buttetfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2451831Y true CN2451831Y (en) | 2001-10-03 |
Family
ID=33608262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249933 Expired - Fee Related CN2451831Y (en) | 2000-11-03 | 2000-11-03 | Metal sealing buttetfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2451831Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300494C (en) * | 2004-04-09 | 2007-02-14 | 浙江大学 | Single eccentric hard sealing butterfly valve |
| CN100590332C (en) * | 2002-08-29 | 2010-02-17 | 费希尔控制国际公司 | Elliptical sealing surface for butterfly valve |
| CN101943270A (en) * | 2010-09-14 | 2011-01-12 | 厦门翰达阀门有限公司 | Butterfly valve extrusion type sealing structure |
| CN103322211A (en) * | 2013-06-24 | 2013-09-25 | 浙江中德自控阀门有限公司 | Metal sealed butterfly valve without pin connection |
| CN104455486A (en) * | 2014-11-28 | 2015-03-25 | 河南煜达阀门制造有限公司 | Bi-directional sealing high-performance butterfly valve |
-
2000
- 2000-11-03 CN CN 00249933 patent/CN2451831Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100590332C (en) * | 2002-08-29 | 2010-02-17 | 费希尔控制国际公司 | Elliptical sealing surface for butterfly valve |
| CN1300494C (en) * | 2004-04-09 | 2007-02-14 | 浙江大学 | Single eccentric hard sealing butterfly valve |
| CN101943270A (en) * | 2010-09-14 | 2011-01-12 | 厦门翰达阀门有限公司 | Butterfly valve extrusion type sealing structure |
| CN103322211A (en) * | 2013-06-24 | 2013-09-25 | 浙江中德自控阀门有限公司 | Metal sealed butterfly valve without pin connection |
| CN103322211B (en) * | 2013-06-24 | 2016-06-29 | 浙江中德自控科技股份有限公司 | A kind of without pin connection metallic seal butterfly valve |
| CN104455486A (en) * | 2014-11-28 | 2015-03-25 | 河南煜达阀门制造有限公司 | Bi-directional sealing high-performance butterfly valve |
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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 |