CN101392839A - Metal hard seal butterfly valve - Google Patents
Metal hard seal butterfly valve Download PDFInfo
- Publication number
- CN101392839A CN101392839A CNA2008102022122A CN200810202212A CN101392839A CN 101392839 A CN101392839 A CN 101392839A CN A2008102022122 A CNA2008102022122 A CN A2008102022122A CN 200810202212 A CN200810202212 A CN 200810202212A CN 101392839 A CN101392839 A CN 101392839A
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- sealing
- valve
- butterfly
- metal hard
- valve body
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Abstract
The invention relates to the technical field of valve, in particular to a metal hard sealing butterfly valve, which comprises a valve body, a butterfly plate, a sealing ring and a valve rod, and is characterized in that the sealing ring is made from a stainless steel pipe and is embedded on the valve body or the butterfly plate, and a formed sealing pair is of a metal elastic sealing structure. The metal hard sealing butterfly valve has the advantages that the sealing pair has good meshing relation by adopting the tri-eccentric tri-compensation principle, and the sealing ring is made from the stainless steel pipe and is embedded on the valve body or the butterfly plate. Because the sealing pair is provided with the metal elastic sealing structure, the metal hard sealing butterfly valve has the characteristics of good sealing performance, high temperature and high pressure resistance, corrosion resistance, long service life, labor-saving operation, flexibility and reliably, and can be widely applied to intercepting and regulating of the fluids on the pipeline systems of gas, steam, air, water, and the like in the industries such as metallurgy, petrochemical, thermoelectricity and heat.
Description
[technical field]
The present invention relates to a kind of valve technology field, especially a kind of metal hard seal butterfly valve.
[background technique]
The seal ring of existing three eccentric hard seal butterfly valves is made after generally adopting the multilayer Stainless Sheet Steel to be superimposed, or adds the graphite interlayer between each layer stainless steel, and the seal ring of making like this claims multi-layer sealing ring.Behind the valve closing, reach sealing effect by the extruding force between the sealing pair; Because seal ring is formed by stacking by the multilayer stainless steel, make seal ring itself have certain elasticity, can remedy the machining error of valve seat, but the pressure that multi-layer sealing ring can bear is limited, when working pressure when 4.0MPa is above, very easily cause the damage of seal ring itself.Therefore multi-layer sealing ring is only applicable to the following occasion of 4.0Mpa pressure.
In addition, the gasket seal in traditional hard seal butterfly valve generally adopts Graphite pad or asbestos washer, and the highest bearing capacity of these two kinds of pads is generally 2.5MPa, and heatproof only reaches 420 ℃.
[summary of the invention]
In order to solve above-mentioned deficiency, a kind of metal hard seal butterfly valve is provided, possess excellent sealing performance, have high temperature resistant, high pressure, characteristics such as anticorrosive, life-span is long.
The object of the present invention is achieved like this: a kind of metal hard seal butterfly valve, it comprises valve body, butterfly plate, seal ring and valve rod, it is characterized in that: described seal ring adopts stainless-steel pipe to make, and seal ring is embedded on valve body or the butterfly plate, and formed sealing pair is metal elastic-sealed structure.
Beneficial effect of the present invention: three eccentric triple compensation principles have been adopted in the sealing pair design, have good meshing relation, and seal ring adopts stainless-steel pipe to make, and is embedded on valve body or the butterfly plate.Characteristics such as sealing pair has metal elastic-sealed structure, thereby possesses excellent sealing performance, has high temperature resistant, high pressure, and anticorrosive, the life-span is long, rapid operation, flexibility and reliability.Can be widely used on the pipe-line system such as coal gas, steam, air, water of industries such as metallurgy, petrochemical industry, thermoelectricity and heating power, that makes fluid blocks and regulates usefulness.
[description of drawings]
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of another embodiment of the present invention.
Referring to Fig. 1, Fig. 2,1 is valve body, and 2 is butterfly plate, and 3 is valve rod, and 4 is seal ring.
[embodiment]
Below in conjunction with the drawings and specific embodiments the present invention is described in detail:
With reference to Fig. 1, a kind of metal hard seal butterfly valve, it comprises valve body 1, butterfly plate 2, seal ring 4 and valve rod 3, and described seal ring 4 adopts stainless-steel pipe to make, and seal ring is embedded on valve body 1 or the butterfly plate, and formed sealing pair is metal elastic-sealed structure.
With reference to Fig. 2, its structure is identical with Fig. 1, and difference only is that seal ring is embedded on the butterfly plate 2.
Claims (1)
1. metal hard seal butterfly valve, it comprises valve body, butterfly plate, seal ring and valve rod, it is characterized in that: described seal ring adopts stainless-steel pipe to make, and seal ring is embedded on valve body or the butterfly plate, and formed sealing pair is metal elastic-sealed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102022122A CN101392839A (en) | 2008-11-04 | 2008-11-04 | Metal hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102022122A CN101392839A (en) | 2008-11-04 | 2008-11-04 | Metal hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101392839A true CN101392839A (en) | 2009-03-25 |
Family
ID=40493275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102022122A Pending CN101392839A (en) | 2008-11-04 | 2008-11-04 | Metal hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101392839A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291939A (en) * | 2013-06-21 | 2013-09-11 | 天津富赛克流体控制设备有限公司 | High-pressure ultra-low-temperature type all-metal hard sealing butterfly valve |
| CN103775661A (en) * | 2013-12-30 | 2014-05-07 | 宁波市天基隆智控技术有限公司 | High-temperature butterfly valve |
-
2008
- 2008-11-04 CN CNA2008102022122A patent/CN101392839A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291939A (en) * | 2013-06-21 | 2013-09-11 | 天津富赛克流体控制设备有限公司 | High-pressure ultra-low-temperature type all-metal hard sealing butterfly valve |
| CN103775661A (en) * | 2013-12-30 | 2014-05-07 | 宁波市天基隆智控技术有限公司 | High-temperature butterfly valve |
| CN103775661B (en) * | 2013-12-30 | 2016-12-07 | 宁波市天基隆智控技术有限公司 | High temperature butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090325 |