CN201436427U - Bidirectional metal seal butterfly valve with a float valve base - Google Patents
Bidirectional metal seal butterfly valve with a float valve base Download PDFInfo
- Publication number
- CN201436427U CN201436427U CN200920078127XU CN200920078127U CN201436427U CN 201436427 U CN201436427 U CN 201436427U CN 200920078127X U CN200920078127X U CN 200920078127XU CN 200920078127 U CN200920078127 U CN 200920078127U CN 201436427 U CN201436427 U CN 201436427U
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- Prior art keywords
- valve
- butterfly plate
- seal
- valve body
- butterfly
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Abstract
The utility model discloses a bidirectional metal seal butterfly valve with a float valve base, relating to a metal seal butterfly valve, comprising a valve body, a butterfly plate installed in the flow pass of the valve body, and a seal valve base installed at one side of the valve body flow pass and cooperating with the seal surface to form a seal pair. The seal valve base is composed of a float valve base and a press ring, one side of the float valve seat is contacted with the butterfly plate, the other end thereof is respectively contacted with the valve body and the press ring. The side of the floating valve base contacting with the butterfly plate is in an arc contact shape and adhering to the outer edge of the butterfly plate. The float valve base is installed in a circular groove formed by the butterfly plate at one side of the valve body flow pass and the valve body. The press ring is positioned outside the circular groove. The utility model is provided with the beneficial effects that the float valve base does micromovement with the butterfly plate under the action of the medium pressure, not only the tightness of the valve is not affected, but also abrasion of the valve body will not occur. The utility model is not limited by the flow direction of the medium, and bidirectional sealing is realized, and the utility model is particularly adaptive to the medium transportation pipe with high temperature and easy scale generation.
Description
Technical field
The utility model relates to metallic sealing butterfly valve, specifically is a kind of floating valve seat bidirectional metallic seal butterfly valve.
Background technique
The seal valve seat of traditional metallic sealing butterfly valve is stationary structure, and is the stationary fit relation between the external diameter of valve seat and the valve seat mounting groove internal diameter, and sealing realizes by positive extruding.But the valve plate of this class formation very easily causes the scuffing of two-phase matching trim when opening rotation, will cause seal failure when serious, and this structure is under high-temperature condition, and the phenomenon that valve is killed takes place in the expansion because of material often, and causing valve can't work normally.Also because the sealing surface precision prescribed of fixed valve base is higher, and difficulty of processing is big, assembling, pressure testing adjustment be difficulty comparatively, directly has influence on the raising of manufacturing efficiency in addition.
The model utility content
The technical problem that the utility model solved is to provide a kind of processing.Assembly technology is simple, the floating valve seat bidirectional metallic seal butterfly valve of two way sealed stable performance.
The technical problem that the utility model solved realizes by the following technical solutions:
A kind of floating valve seat bidirectional metallic seal butterfly valve, comprise valve body, be installed in butterfly plate in the valve flowing channel by valve rod, and be installed in valve flowing channel one side and match and form the seal valve seat of sealing pair with the sealing surface of butterfly plate, it is characterized in that: described seal valve seat is made of floating valve seat and trim ring, one side and the butterfly plate of floating valve seat contact, and opposite side contacts with valve body, trim ring respectively.
Described floating valve seat and curved contact of the contacted side of butterfly plate are fitted in the outer rim of butterfly plate.
Described floating valve seat is installed in the annular groove of making between valve flowing channel one side butterfly plate and the valve body, and trim ring is placed in the outside of annular groove.
The beneficial effects of the utility model are that floating valve seat is done microdisplacement under the effect of pressure medium, not only can not influence the sealing of valve, simultaneously can not cause wearing and tearing to valve body yet, be not subjected to MEDIA FLOW to restriction, can realize two way sealed, be particularly suitable on the medium transport pipeline of higher temperature and easily fouling.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a seal valve seat enlarged diagram among Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As depicted in figs. 1 and 2, a kind of floating valve seat bidirectional metallic seal butterfly valve, comprise valve body 1, be installed in butterfly plate 3 in the valve flowing channel by valve rod 2, and be installed in valve flowing channel one side and match and form the seal valve seat 4 of sealing pair with the sealing surface of butterfly plate 3, seal valve seat 4 is made of floating valve seat 41 and trim ring 42, be installed in the annular groove 43 that processes between valve flowing channel one side butterfly plate 3 and the valve body 1, trim ring 42 is placed in the outside of annular groove 43.One side and the butterfly plate 3 of floating valve seat 41 contact, and opposite side contacts with valve body 1, trim ring 42 respectively.And floating valve seat 41 and curved contact of butterfly plate 3 contacted sides are fitted in the outer rim of butterfly plate 3.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. floating valve seat bidirectional metallic seal butterfly valve, comprise valve body, be installed in butterfly plate in the valve flowing channel by valve rod, and be installed in valve flowing channel one side and match and form the seal valve seat of sealing pair with the sealing surface of butterfly plate, it is characterized in that: described seal valve seat is made of floating valve seat and trim ring, one side and the butterfly plate of floating valve seat contact, and opposite side contacts with valve body, trim ring respectively.
2. according to the described floating valve seat bidirectional metallic seal butterfly valve of claim 1, it is characterized in that: described floating valve seat and curved contact of the contacted side of butterfly plate are fitted in the outer rim of butterfly plate.
3. according to the described floating valve seat bidirectional metallic seal butterfly valve of claim 1, it is characterized in that: described floating valve seat is installed in the annular groove of making between valve flowing channel one side butterfly plate and the valve body, and trim ring is placed in the outside of annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920078127XU CN201436427U (en) | 2009-07-10 | 2009-07-10 | Bidirectional metal seal butterfly valve with a float valve base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920078127XU CN201436427U (en) | 2009-07-10 | 2009-07-10 | Bidirectional metal seal butterfly valve with a float valve base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436427U true CN201436427U (en) | 2010-04-07 |
Family
ID=42372881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920078127XU Expired - Fee Related CN201436427U (en) | 2009-07-10 | 2009-07-10 | Bidirectional metal seal butterfly valve with a float valve base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436427U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363134A (en) * | 2013-08-02 | 2013-10-23 | 铜陵市兴达阀门总厂 | High-reliability bi-directional hard sealing butterfly valve |
| CN104019243A (en) * | 2014-06-17 | 2014-09-03 | 上海冠龙阀门机械有限公司 | Butterfly valve with bi-directional sealing device |
| CN107355557A (en) * | 2017-09-12 | 2017-11-17 | 浙江贝尔控制阀门有限公司 | A kind of floating valve seat high-performance regulating valve |
-
2009
- 2009-07-10 CN CN200920078127XU patent/CN201436427U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363134A (en) * | 2013-08-02 | 2013-10-23 | 铜陵市兴达阀门总厂 | High-reliability bi-directional hard sealing butterfly valve |
| CN104019243A (en) * | 2014-06-17 | 2014-09-03 | 上海冠龙阀门机械有限公司 | Butterfly valve with bi-directional sealing device |
| CN107355557A (en) * | 2017-09-12 | 2017-11-17 | 浙江贝尔控制阀门有限公司 | A kind of floating valve seat high-performance regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100407 Termination date: 20150710 |
|
| EXPY | Termination of patent right or utility model |