CN201547269U - Bidirectional pressure-bearing elastic seal seat of butterfly valve - Google Patents
Bidirectional pressure-bearing elastic seal seat of butterfly valve Download PDFInfo
- Publication number
- CN201547269U CN201547269U CN2009202140684U CN200920214068U CN201547269U CN 201547269 U CN201547269 U CN 201547269U CN 2009202140684 U CN2009202140684 U CN 2009202140684U CN 200920214068 U CN200920214068 U CN 200920214068U CN 201547269 U CN201547269 U CN 201547269U
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- CN
- China
- Prior art keywords
- butterfly
- valve
- seal ring
- butterfly plate
- elastic seal
- 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 the technical field of butterfly valves, in particular to a bidirectional pressure-bearing elastic seal seat of a butterfly valve. The elastic seal seat comprises a valve body, a seal ring, a butterfly plate and a valve rod, and is characterized in that the inner wall of the valve body adopts an embossed structure and is matched with the U-shaped seal ring, the butterfly plate is covered with an elastic seal layer, the valve rod is externally plastic lined, the U-shaped seal ring is a composite pad consisting of a synthetic rubber seal ring and a polytetrafluoroethylene seal ring, and the butterfly plate adopts a seal structure with a double-eccentricity and an obliquely conical oval. Compared with the prior art, the elastic seal seat achieves the effect that separation of a sealed surface occurs as soon as the butterfly plate is opened and that the sealing effect is achieved as soon as the butterfly plate is closed. Therefore, the elastic seal seat achieves the purposes of prolonged service life and optimal sealing performance.
Description
[technical field]
The utility model relates to the butterfly valve technical field, specifically a kind of bidirectional bearing elastic packing seat of butterfly valve.
[background technique]
Butterfly valve is a kind of valve commonly used, and it is installed on the pipeline usually, rotates by valve shaft drive valve plate and realizes unlatching with closed, thereby play the effect of cut-out and throttling.Butterfly valve is divided into central seal butterfly valve and eccentric sealed butterfly valve usually.The valve shaft of central seal butterfly valve and valve plate are positioned on the same axis, and this class butterfly valve structure is simple, profile is little, it is little to take up room, but the central seal butterfly valve generally adopts rubber seal, and therefore non-refractory is not suitable for using in hot environment; The valve shaft of eccentric sealed butterfly valve and valve plate be not on same axis, and it generally adopts metallic seal, therefore be adapted at using in the high temperature conduit, but the eccentric setting of valve shaft and valve plate will inevitably increase local length, and be that its volume becomes greatly.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, and the U-shaped seal ring of valve interior wall with synthetic rubber, teflon composite pad cooperated, and has solved traditional butterfly valve still is in the sliding contact friction at keying moment sealing surface disadvantage.
In order to achieve the above object, the utility model designs a kind of bidirectional bearing elastic packing seat of butterfly valve, a kind of bidirectional bearing elastic packing seat of butterfly valve, comprise valve body, seal ring, butterfly plate, valve rod, it is characterized in that: valve interior wall is the type structure and cooperates with the U-shaped seal ring, butterfly plate coats elastic sealing layer outward, and valve rod peripheral hardware lining is moulded.
Described U-shaped seal ring is the composite pad of elastomeric seal circle and teflin ring.
Described butterfly plate has adopted the two eccentric and oval sealing configuration of oblique cone.
The utility model is compared with prior art, has realized that butterfly plate promptly separates opening the moment sealing surface, closes the effect that contact promptly seals, reach increase the service life, the purpose of sealability the best.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Referring to Fig. 1,1 is valve body, and 2 is the U-shaped seal ring, and 3 is elastic sealing layer, and 4 is valve rod, and 5 is butterfly plate.
[embodiment]
Below in conjunction with accompanying drawing the utility model is described further.
Referring to Fig. 1, valve body 1 inwall and synthetic rubber, the compound U-shaped seal ring 2 of teflon cooperate, during valve closing, rotation by butterfly plate 5, the cylindrical sealing surface extruding of butterfly plate 5 is located at the U-shaped seal ring 2 outside the valve body 1, thereby make U-shaped seal ring 2 elastic sealing layer 3 outer produce resiliently deformables and form sealing surfaces, prevent the leakage of fluid and can improve the corrosion resistance of butterfly valve with being located at butterfly plate 5.
Claims (3)
1. the bidirectional bearing elastic packing seat of a butterfly valve, comprise valve body, seal ring, butterfly plate, valve rod, it is characterized in that: valve body (1) inwall is the type structure and cooperates with U-shaped seal ring (2), the outer elastic sealing layer (3) that coats of butterfly plate (5), and valve rod (4) peripheral hardware lining is moulded.
2. the bidirectional bearing elastic packing seat of a kind of butterfly valve according to claim 1 is characterized in that: described U-shaped seal ring (2) is the composite pad of elastomeric seal circle and teflin ring.
3. the bidirectional bearing elastic packing seat of a kind of butterfly valve according to claim 1 is characterized in that: described butterfly plate (5) has adopted a two eccentric and oblique cone ellipse sealing configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202140684U CN201547269U (en) | 2009-11-23 | 2009-11-23 | Bidirectional pressure-bearing elastic seal seat of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202140684U CN201547269U (en) | 2009-11-23 | 2009-11-23 | Bidirectional pressure-bearing elastic seal seat of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547269U true CN201547269U (en) | 2010-08-11 |
Family
ID=42602442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202140684U Expired - Fee Related CN201547269U (en) | 2009-11-23 | 2009-11-23 | Bidirectional pressure-bearing elastic seal seat of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286863A (en) * | 2015-06-11 | 2017-01-04 | 河南般德流体控制有限公司 | A kind of Novel separated type synthesis butterfly valve seat |
-
2009
- 2009-11-23 CN CN2009202140684U patent/CN201547269U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286863A (en) * | 2015-06-11 | 2017-01-04 | 河南般德流体控制有限公司 | A kind of Novel separated type synthesis butterfly valve seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20131123 |