CN201739666U - Valve flange sealing piece structure - Google Patents
Valve flange sealing piece structure Download PDFInfo
- Publication number
- CN201739666U CN201739666U CN2010205111968U CN201020511196U CN201739666U CN 201739666 U CN201739666 U CN 201739666U CN 2010205111968 U CN2010205111968 U CN 2010205111968U CN 201020511196 U CN201020511196 U CN 201020511196U CN 201739666 U CN201739666 U CN 201739666U
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- CN
- China
- Prior art keywords
- flange
- flanges
- sealing
- periphery
- bolt
- 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 discloses a valve flange sealing piece structure which comprises a pipeline and two flanges connected by a bolt. Two semi-circular sealing hoops are arranged at the periphery of the connecting position between the two flanges, and surround the periphery of the flanges by the bolt in a connecting manner. The two semi-circular sealing hoops which are connected by the bolt closely surround the periphery of the flanges, so as to prevent leakage of the flanges; even if the leakage is caused by abrasion, flange gaskets can also be sealed by the sealing hoops, so as to avoid seepage of materials, thereby achieving good sealing effect and being beneficial for safe production.
Description
Technical field
The utility model relates to a kind of valve flanges seal configuration.
Background technique
Flange is flanged part.Flange can be independent, is called flange plate, also can be combined, as the flange at valve two ends, is convenient to construction bolt.
In order to guarantee the sealing of flange, often need to use flange gasket, pad commonly used has:
1, Graphite pad:
By the flat gasket that soft graphite is made, be applicable to high temperature, strong corrosive media.
2, metallic shim:
Mainly contain three kinds of patterns:
1) octagon and elliptical pad---be applicable to trapezoidal slot type flange facing;
2) tooth pattern is to process the cone gear form ripple on the flat metallic gasket sealing surface---be applicable to lenticular flange facing;
3) German-style metal lensring---be applicable to the lens type flange facing.
Metallic shim has multiple materials such as pure iron, dead soft steel, stainless steel, aluminium.
The machining accuracy of metallic shim sealing surface and surface roughness require very high, and the bolt impacting force is very big, is used in high-temperature high pressure valve.
3, metal bag Graphite pad:
Form by thin metallic cover annular asbestos washer.Generally be used in lenticular flange facing.Be applicable to the valve of higher temperature and pressure.
4, spiral wound gasket:
Be entwined by crinkled metal ribbon and the mixing of sealing material band.There are steel band-asbestos, steel band-teflon, steel band-Expanded graphite etc. multiple.Generally be used for lenticular flange facing.Be applicable to the Middle pressure valve of higher temperature.
5, teflon gasket:
Generally be used for the tenon-slot type sealing surface, mainly contain teflon and two kinds of materials of folder glass fibre teflon.Be applicable to the strong corrosive media of the various pressure of lower temperature.
6, asbestos-packing gasket:
Be applicable to smooth formula flange facing, lenticular flange facing and tenon-slot type flange facing.Advantage is corrosion-resistant and better heat stability, and the good face of plasticity guarantees sealing with less impacting force section.Shortcoming is that intensity is lower, easily is bonded on the flange facing.Asbestos-packing gasket has omnipotent asbestos slate, corrosion protection asbestos slate, generally with multiple materials such as asbestos slate, acidproof asbestos slate, oil resistant asbestos slate, folder wire asbestos slates.Be used in the Middle pressure valve of higher temperatures.
But, no matter be what pad, all there is wear problem, cause the leakage of flange easily.
The model utility content
The utility model technical issues that need to address just are to overcome the defective of prior art, and a kind of valve flanges seal configuration is provided, and it can keep the flange good sealing property.
For addressing the above problem, the utility model adopts following technological scheme:
A kind of valve flanges seal configuration of the utility model comprises pipeline and by bolted two flange plate, the periphery of flange plate joint is provided with two semicircle sealing hoops, and two semicircle sealing hoops connect the periphery of surrounding flange plate by bolt.
Two flange plate junction surfaces are provided with flange gasket.
The utility model tightly surrounds the flange plate periphery by bolted two semicircle sealing hoops, prevent the seepage of flange plate, even flange gasket is owing to wearing and tearing cause seepage also can seal by sealing hoop, avoided oozing out of material, thereby can reach good sealing effect, help safety in production.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of valve flanges seal configuration of the utility model, comprise pipeline 1 and two flange plate 3 that connect by bolt 2, the periphery of flange plate joint is provided with 4, two semicircle sealing hoops of two semicircle sealing hoops and connects the periphery of surrounding flange plate by bolt 5.
Two flange plate junction surfaces are provided with flange gasket.
The utility model tightly surrounds the flange plate periphery by bolted two semicircle sealing hoops, prevent the seepage of flange plate, even flange gasket is owing to wearing and tearing cause seepage also can seal by sealing hoop, avoided oozing out of material, thereby can reach good sealing effect, help safety in production.
It should be noted that at last: obviously, the foregoing description only is for the utility model example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't be to all mode of execution with exhaustive.And conspicuous variation of being extended out thus or change still are among the protection domain of the present utility model.
Claims (2)
1. a valve flanges seal configuration comprises pipeline and passes through bolted two flange plate, and it is characterized in that: the periphery of flange plate joint is provided with two semicircle sealing hoops, and two semicircle sealing hoops connect the peripheries of surrounding flange plate by bolt.
2. valve flanges seal configuration as claimed in claim 1 is characterized in that: two flange plate junction surfaces are provided with flange gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205111968U CN201739666U (en) | 2010-08-31 | 2010-08-31 | Valve flange sealing piece structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205111968U CN201739666U (en) | 2010-08-31 | 2010-08-31 | Valve flange sealing piece structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739666U true CN201739666U (en) | 2011-02-09 |
Family
ID=43554941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205111968U Expired - Fee Related CN201739666U (en) | 2010-08-31 | 2010-08-31 | Valve flange sealing piece structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791564A (en) * | 2015-03-31 | 2015-07-22 | 无锡市华尔泰机械制造有限公司 | C276 Hastelloy alloy flange and production technology thereof |
-
2010
- 2010-08-31 CN CN2010205111968U patent/CN201739666U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791564A (en) * | 2015-03-31 | 2015-07-22 | 无锡市华尔泰机械制造有限公司 | C276 Hastelloy alloy flange and production technology thereof |
| CN104791564B (en) * | 2015-03-31 | 2017-03-08 | 无锡市华尔泰机械制造有限公司 | A kind of C276 Hastelloy flange and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: URUMQI LONGCHENG INDUSTRY CO., LTD. Free format text: FORMER OWNER: URUMQI LONGCHENGXIANG PETROCHEMICALS CO.,LTD. Effective date: 20120517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120517 Address after: 830000, No. 712 West Kashi Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Urumqi Longcheng Industry Co., Ltd. Address before: 830000, No. 712 West Kashi Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: Urumchi Longchengxiang Petrochemical Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130831 |