CN201666380U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN201666380U CN201666380U CN2010202954153U CN201020295415U CN201666380U CN 201666380 U CN201666380 U CN 201666380U CN 2010202954153 U CN2010202954153 U CN 2010202954153U CN 201020295415 U CN201020295415 U CN 201020295415U CN 201666380 U CN201666380 U CN 201666380U
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- CN
- China
- Prior art keywords
- valve
- butterfly
- seal ring
- butterfly plate
- plate
- 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 butterfly valve comprising a valve shaft and a valve plate which are arranged in a valve body, wherein the valve body is formed by an upper valve seat and a lower valve seat that are connected together by a screw; the outer surfaces of the butterfly plates in the valve seats are respectively seal-coated with a fluorine plastic layer; the inner wall of the valve seats are respectively provided with a silicon rubber sheet filling layer and a fluorine plastic lining layer from inside to outside; the fluorine plastic layers at the upper end and the lower end of the butterfly plates are respectively embedded with a fluorine rubber seal ring, and respectively contacted with the fluorine plastic lining layer; and the butterfly plate and the fluorine plastic lining layer are fluid-sealed by the fluorine rubber seal ring. The butterfly valve has simpleness in structure, can effectively improve the corrosion resistance property, and prolong the service life of the product.
Description
Technical field
The utility model relates to a kind of butterfly valve.
Background technique
The butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the purpose that opens and closes or regulate.The butterfly valve standard-sized sheet to complete shut-down normally less than 90 °.The butterfly valve main feature: (1) open-close convenient is rapid, laborsaving, fluid resistance is little, can often operate.(2) simple in structure, volume is little, and is in light weight.(3) can transport mud, it is minimum to accumulate liquid in pipeline opening.(4) under the low pressure, can realize good sealing.(5) adjusting function is good.
Existing reed valve is a kind of simple, and the flapper valve that is not closed completely, and uses as flow control valve and orifice valve in water piping system usually.
Along with the fast development of modern petrochemical industry industry, some media that use in special operation condition have extremely strong corrosivity, even the valve of stainless valve and lining rubber, enamel also can not be satisfied the demand.If adopt Hastelloy, monel metal or No. 20 alloys etc. as valve material, owing to wherein contain rare metals such as a large amount of Ni, Cr, Ti, Mo, Nb and Pt, its resource-constrained, price is expensive.
Summary of the invention
The purpose of this utility model is to provide a kind of butterfly valve, and it is simple in structure, can improve the corrosion resistance of butterfly valve effectively, prolongs product working life.
The purpose of this utility model is achieved in that a kind of butterfly valve, be included in valve shaft and the butterfly plate installed in the valve body, valve body is linked together by bolt by upper valve base and lower valve base and forms, being positioned on the butterfly plate outer surface of valve seat sealed packet covers and is putting fluoroplastics layer, silicane rubber plate is being set respectively on the valve base inner wall is from inside to outside filling out lining and fluoroplastic inside liner, on butterfly plate, the horizontal setting-in of difference a viton seal ring in the fluoroplastics layer of following two ends, on the butterfly plate, following two ends fluoroplastics layer contacts with the fluoroplastic inside liner respectively, carries out liquid sealing by viton seal ring between butterfly plate and the fluoroplastic inside liner.
The utility model butterfly valve adopts fluoroplastics layer cylinder-packing butterfly plate, is equipped with the sealability that the silicane rubber plate of valve seat base portion is filled out the lining regulating valve; This valve operation is light, good seal performance, long service life; The usefulness that can make fast shut-off or regulate flow.Be applicable to the occasion that requires reliable sealing and well-tuned characteristic.Lining fluorine butterfly valve body adopts split type, and the sealing at valve shaft two ends adds viton seal ring by the rotation basal plane between butterfly plate and the valve seat to be controlled, thereby reaches product with compact structure, beautiful shape, and technology is reasonable, the purpose of reliable performance.Guarantee that valve shaft does not contact with chamber inner fluid medium, very convenient when changing valve shaft, valve does not need to separate pipeline can be finished.
The utility model is simple in structure, will effectively isolate between metalwork and the corrosive liquids, can improve the corrosion resistance of butterfly valve effectively, prolongs product working life.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 looks the semi-section structural representation for master of the present utility model;
Fig. 2 looks cross-sectional view for the master of the utility model viton seal ring.
Embodiment
A kind of butterfly valve as shown in Figure 1, is included in valve shaft 10 and the butterfly plate 3 installed in the valve body, and butterfly plate 3 is installed in valve shaft 10 lower ends and is opened and closed by valve shaft control.Valve body is linked together by bolt 7 by upper valve base 8 and lower valve base 5 and forms.Be positioned on butterfly plate 3 outer surfaces of valve seat sealed packet and cover and putting fluoroplastics layer 4, silicane rubber plate is being set respectively on the valve base inner wall is from inside to outside filling out lining 2 and fluoroplastic inside liner 1.Horizontal setting-in a viton seal ring respectively in the upper/lower terminal fluoroplastics layer of butterfly plate 3, and butterfly plate 3 upper/lower terminal fluoroplastics layers contact with the fluoroplastic inside liner respectively, carry out liquid sealing by viton seal ring between butterfly plate and the fluoroplastic inside liner.
As shown in Figure 2, said viton seal ring is sleeved on together by inner ring 11 and outer ring 9 and constitutes, the cross section of viton seal ring assumes diamond in shape circular or oval, said inner ring 11 outer periphery middle part is being provided with a groove, 9 inner circumference edges middle part, outer ring is being provided with a flange, and flange and said groove fit are installed together.
Setting-in a locating bar 6 on upper valve base 8 and lower valve base 5 contacted side surfaces, is convenient to the connection location between the upper and lower valve seat.
Claims (3)
1. butterfly valve, be included in valve shaft and the butterfly plate installed in the valve body, it is characterized in that: valve body is linked together by bolt by upper valve base and lower valve base and forms, being positioned on the butterfly plate outer surface of valve seat sealed packet covers and is putting fluoroplastics layer, silicane rubber plate is being set respectively on the valve base inner wall is from inside to outside filling out lining and fluoroplastic inside liner, on butterfly plate, the horizontal setting-in of difference a viton seal ring in the fluoroplastics layer of following two ends, on the butterfly plate, following two ends fluoroplastics layer contacts with the fluoroplastic inside liner respectively, carries out liquid sealing by viton seal ring between butterfly plate and the fluoroplastic inside liner.
2. butterfly valve according to claim 1 is characterized in that: setting-in a locating bar on upper valve base and the contacted side surface of lower valve base.
3. butterfly valve according to claim 1, it is characterized in that: said viton seal ring is sleeved on together by inner ring and outer ring and constitutes, the cross section of viton seal ring assumes diamond in shape, said inner ring outer periphery middle part is being provided with a groove, inner circumference edge middle part, outer ring is being provided with a flange, and flange and said groove fit are installed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202954153U CN201666380U (en) | 2010-08-18 | 2010-08-18 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202954153U CN201666380U (en) | 2010-08-18 | 2010-08-18 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666380U true CN201666380U (en) | 2010-12-08 |
Family
ID=43267340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202954153U Expired - Fee Related CN201666380U (en) | 2010-08-18 | 2010-08-18 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201666380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388696A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Fluorine lining valve mounted in medical equipment pipeline |
-
2010
- 2010-08-18 CN CN2010202954153U patent/CN201666380U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388696A (en) * | 2012-05-11 | 2013-11-13 | 四川汇利实业有限公司 | Fluorine lining valve mounted in medical equipment pipeline |
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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: 20101208 Termination date: 20110818 |