CN203670829U - Hard sealing butterfly valve with replaceable sealing ring - Google Patents
Hard sealing butterfly valve with replaceable sealing ring Download PDFInfo
- Publication number
- CN203670829U CN203670829U CN201320741044.0U CN201320741044U CN203670829U CN 203670829 U CN203670829 U CN 203670829U CN 201320741044 U CN201320741044 U CN 201320741044U CN 203670829 U CN203670829 U CN 203670829U
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- CN
- China
- Prior art keywords
- sealing ring
- hard
- valve
- hard sealing
- ring
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 79
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The utility model provides a hard sealing butterfly valve with a replaceable sealing ring. The hard sealing butterfly valve comprises a valve body, a valve base and a valve plate. The valve body and the valve base are integrally formed, the valve plate is located in the valve body, and the hard sealing ring is arranged at the contact position of the valve plate and the valve base. The hard sealing butterfly valve is characterized in that the hard sealing ring is round, a plurality of screw holes are evenly distributed in the hard sealing ring in the circumferential direction, a groove is formed in the outer edge of the valve plate in the circumferential direction, the hard sealing ring is fixed into the groove through screws, a groove is formed in the contact surface of the hard sealing ring and the valve plate, and an O-shaped ring is arranged in the groove. The hard sealing butterfly valve with the replaceable sealing ring is simple in structure, the sealing ring is convenient to mount and demount and easy to replace, and the service life of the valve is prolonged.
Description
Technical field
The utility model relates to a kind of butterfly valve, relates in particular to a kind of very stiff and demanding seal butterfly valve that can change seal ring.
Background technique
In the pipeline poor in water quality, head is higher, severe operating mode is very serious to the loss of valve, and common soft sealing butterfly valve and Multi-layer sealing butterfly valve cannot use at all, must use hard seal butterfly valve.The both sides of sealing pair are be all called as " hard sealings " of metallic material or harder other material, and this sealing is high temperature resistant, resistance to wear, and good mechanical property, but adopt very stiff and demanding seal butterfly valve also can produce the problems such as sealing surface scratch after long-time use.
Model utility content
Problem to be solved in the utility model is to provide a kind of hard seal butterfly valve of replaceable seal ring simple in structure.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of replaceable seal ring hard seal butterfly valve is provided, comprise valve body, valve seat and valve plate, described valve body and valve seat are one-body molded, described valve plate is positioned at described valve body, described valve plate and described valve seat contacting point are provided with hard sealing ring, it is characterized in that: described hard sealing ring is for circular, on hard sealing ring, be along the circumferential direction evenly distributed with some screw holes, the outward edge of described valve plate along the circumferential direction has groove, described hard sealing ring is fixed by screws in described groove, described hard sealing ring with the surface of contact of described valve plate on have a groove, in described groove, be provided with O type circle.
Between the sealing surface of described hard sealing ring and horizontal plane, have an angle α, the size of α is between 10-15 °.
Between the sealing surface of described valve seat and horizontal plane, have an angle β, the size of β is between 10-15 °.
The higher side of sealing surface of the corresponding described valve seat of the lower side of sealing surface of described hard sealing ring.
Described hard sealing ring is provided with a locating stud.
Described screw is socket head screw.
Advantage and the good effect that the utlity model has are: replaceable seal ring hard seal butterfly valve of the present utility model, hard sealing ring is fixed by screws on valve plate, easy to loading and unloading, be easy to change, be provided with O type circle at hard sealing ring and valve plate surface of contact, prevent that between hard sealing ring and valve plate, medium is revealed, on hard sealing ring, be also provided with locating stud, can accurately locate the position between hard sealing ring and valve plate, prevent from changing after hard sealing ring, with valve plate, assembling dislocation occurs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is part-structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of hard sealing ring of the present utility model.
In figure:
1, valve body 2, valve seat 3, valve plate 4, hard sealing ring
5, screw hole 6, groove 7, screw 8, groove
9, O type circle 10, locating stud
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Figure 1-3, the utility model embodiment's replaceable seal ring hard seal butterfly valve, comprise valve body 1, valve seat 2 and valve plate 3, described valve body 1 and valve seat 2 are one-body molded, described valve plate 3 is positioned at described valve body 1, described valve plate 3 and described valve seat 2 contacting points are provided with hard sealing ring 4, described hard sealing ring 4 is circular, on hard sealing ring 4, be along the circumferential direction evenly distributed with some screw holes 5, the outward edge of described valve plate 3 along the circumferential direction has groove 6, described hard sealing ring 4 is fixed in described groove 6 by screw 7, described hard sealing ring 4 with the surface of contact of described valve plate 3 on have a groove 8, in described groove 8, be provided with O type circle 9.
Between the sealing surface of described hard sealing ring 4 and horizontal plane, have an angle α, the size of α is between 10-15 °.
Between the sealing surface of described valve seat 2 and horizontal plane, have an angle β, the size of β is between 10-15 °.
The higher side of sealing surface of the corresponding described valve seat 2 of the lower side of sealing surface of described hard sealing ring 4.
Described hard sealing ring is provided with a locating stud 10.
Described screw 7 is socket head screw.
In use, O type circle 9 is arranged in the groove of hard sealing ring 4, then hard sealing ring 4 is arranged in the groove 6 of valve plate 3 by screw 7, screw 7 is socket head screw, hard sealing ring 4 installation and removal are convenient, be easy to change, O type circle 9 can guarantee good sealing between hard sealing ring 4 and valve plate 3, the higher side of sealing surface of the corresponding valve seat 2 of the lower side of sealing surface of mounted hard sealing ring 4, in the time of throttle down, the sealing surface of hard sealing ring 4 is tightly pressed on the sealing surface of valve seat 2, can effectively guarantee the sealability of valve, on hard sealing ring 4, be also provided with a positioning hole pin 10, when hard sealing ring 4 is installed, locating stud 10 is in order to determine the accurate location between hard sealing ring 4 and valve plate 3, prevent from assembling dislocation occurring and occurring leakage with valve plate 3 after seal ring from changing, replaceable seal ring hard seal butterfly valve of the present utility model is simple in structure, replaceable seal ring after hard sealing ring scratch, extend the working life of valve.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model scope, within all should still belonging to this patent covering scope.
Claims (6)
1. replaceable seal ring hard seal butterfly valve, comprise valve body, valve seat and valve plate, described valve body and valve seat are one-body molded, described valve plate is positioned at described valve body, described valve plate and described valve seat contacting point are provided with hard sealing ring, it is characterized in that: described hard sealing ring is for circular, on hard sealing ring, be along the circumferential direction evenly distributed with some screw holes, the outward edge of described valve plate along the circumferential direction has groove, described hard sealing ring is fixed by screws in described groove, described hard sealing ring with the surface of contact of described valve plate on have a groove, in described groove, be provided with O type circle.
2. replaceable seal ring hard seal butterfly valve according to claim 1, is characterized in that: between the sealing surface of described hard sealing ring and horizontal plane, have an angle α, the size of α is between 10-15 °.
3. replaceable seal ring hard seal butterfly valve according to claim 1, is characterized in that: between the sealing surface of described valve seat and horizontal plane, have an angle β, the size of β is between 10-15 °.
4. replaceable seal ring hard seal butterfly valve according to claim 1, is characterized in that: the higher side of sealing surface of the corresponding described valve seat of the lower side of sealing surface of described hard sealing ring.
5. replaceable seal ring hard seal butterfly valve according to claim 1, is characterized in that: described hard sealing ring is provided with a locating stud.
6. replaceable seal ring hard seal butterfly valve according to claim 1, is characterized in that: described screw is socket head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741044.0U CN203670829U (en) | 2013-11-20 | 2013-11-20 | Hard sealing butterfly valve with replaceable sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741044.0U CN203670829U (en) | 2013-11-20 | 2013-11-20 | Hard sealing butterfly valve with replaceable sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670829U true CN203670829U (en) | 2014-06-25 |
Family
ID=50967127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320741044.0U Expired - Lifetime CN203670829U (en) | 2013-11-20 | 2013-11-20 | Hard sealing butterfly valve with replaceable sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339138A (en) * | 2018-09-29 | 2019-02-15 | 天津包博特密封科技有限公司 | A kind of impact-resistant dredger hopper flashboard |
| CN111043329A (en) * | 2020-01-16 | 2020-04-21 | 山东超力阀门制造有限公司 | Butterfly valve with sub-cavity buffering function |
-
2013
- 2013-11-20 CN CN201320741044.0U patent/CN203670829U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339138A (en) * | 2018-09-29 | 2019-02-15 | 天津包博特密封科技有限公司 | A kind of impact-resistant dredger hopper flashboard |
| CN111043329A (en) * | 2020-01-16 | 2020-04-21 | 山东超力阀门制造有限公司 | Butterfly valve with sub-cavity buffering function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 301802 No. 3 Road, nine yuan industrial park, Da Bai street, Baodi District, Tianjin Patentee after: TIANJIN KRS VALVE Co.,Ltd. Address before: 301802 No. three road, nine yuan industrial park, Baodi District, Tianjin. Patentee before: TIANJIN K.R.S VALVE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |