CN201326751Y - Double-eccentric soft-hard double-passage seal butterfly valve - Google Patents
Double-eccentric soft-hard double-passage seal butterfly valve Download PDFInfo
- Publication number
- CN201326751Y CN201326751Y CNU2008202321115U CN200820232111U CN201326751Y CN 201326751 Y CN201326751 Y CN 201326751Y CN U2008202321115 U CNU2008202321115 U CN U2008202321115U CN 200820232111 U CN200820232111 U CN 200820232111U CN 201326751 Y CN201326751 Y CN 201326751Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- valve
- butterfly plate
- butterfly
- valve body
- 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
Links
Images
Abstract
The utility model relates to a double-eccentric soft-hard double-passage seal butterfly valve, which comprises a valve body. A valve seat is arranged in the inner cavity of the valve body. The valve body is provided with a valve shaft communicated with the inner cavity of the valve body. The valve shaft is connected with a butterfly plate at one end of the inner cavity of the valve body. A valve body sealing ring is embedded on the valve seat. The outer periphery of the butterfly plate is provided with inwards-recessed steps. A ring-shaped press plate which is connected outside the steps by screws distributed along the circumference is arranged outside the steps. A butterfly plate sealing ring is embedded in a groove formed by the press plate and the steps. The butterfly plate sealing ring is a butterfly plate combined sealing ring which is formed by combining a sealing ring made of non-metallic seal material and a sealing ring made of metallic seal material. As the butterfly plate sealing ring is formed by combining a sealing ring made of non-metallic seal material and a sealing ring made of metallic seal material, the sealing ring made of the metallic seal material has high strength and long service life; the sealing ring made of the non-metallic seal material has good sealing performance; and the butterfly plate combined sealing ring has the advantages of high strength, long service life and good sealing performance, and the comprehensive performance of the sealing ring is good.
Description
Technical field
The utility model relates to the butterfly plate seal ring of a kind of double eccentric butterfly valve, particularly a kind of double eccentric butterfly valve.
Background technique
Double eccentric butterfly valve has valve body, body cavity has valve seat, the valve shaft that communicates with body cavity is arranged on the valve body, valve shaft is connected with butterfly plate at an end of body cavity, be embedded with valve seals on the valve seat, the excircle of butterfly plate has the step that concaves, the outer useful screw that is uniformly distributed along the circumference of step is connected in the outer ring pressing plate of step, the groove that pressing plate and step are formed is embedded with the butterfly plate seal ring, the butterfly plate seal ring and the valve seals of double eccentric butterfly valve have metal-metal, the sealing pair of metal-nonmetal or nonmetal-nonmetal combination, above-mentioned metal is the metallic seal material that can manufacture the butterfly valve seal circle, can make the metallic seal material that is used as the butterfly valve seal circle can be steel, stainless steel or copper, nonmetal is the nonmetal sealing material that can manufacture the butterfly valve seal circle, and the nonmetal sealing material that can manufacture the butterfly valve seal circle can be a rubber, Expanded graphite, asbestos, asbestos rubber or plastics.In the prior art, useful single metallic material of butterfly plate seal ring or single nonmetal sealing material are made, longer with butterfly plate seal ring intensity height, working life that single metallic material is made, but sealability is bad, the butterfly plate sealing ring tightness made from single nonmetal sealing material can be good, but intensity is lower, working life is shorter, so the combination property of the butterfly plate seal ring made from homogenous material is bad, in the prior art, there is not the double eccentric butterfly valve of the good combination property of butterfly plate seal ring.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of two eccentric soft or hard double sealing butterfly valve of good combination property of butterfly plate seal ring.
The utility model is realized with the following method.
Two eccentric soft or hard double sealing butterfly valves have valve body, body cavity has valve seat, the valve shaft that communicates with body cavity is arranged on the valve body, valve shaft is connected with butterfly plate at an end of body cavity, be embedded with valve seals on the valve seat, the excircle of butterfly plate has the step that concaves, the outer useful screw that is uniformly distributed along the circumference of step is connected in the outer ring pressing plate of step, the groove that pressing plate and step are formed is embedded with the butterfly plate seal ring, and the butterfly plate seal ring is the butterfly plate combined seal ring that is combined by nonmetal sealing material seal ring and metallic seal material seal circle.
Butterfly plate seal ring of the present utility model is the butterfly plate combined seal ring that is combined by nonmetal sealing material seal ring and metallic seal material seal circle.Seal ring intensity height, working life that the metallic seal material is made are longer, the sealing ring tightness that nonmetal sealing material is made can be good, the butterfly plate combined seal ring that combines with nonmetal sealing material seal ring and metallic seal material seal circle has the advantage of long, good seal performance of intensity height, working life, the good combination property of seal ring.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic according to a kind of two eccentric soft or hard double sealing butterfly valves of invention scheme proposition of the present utility model;
Fig. 2 is the schematic side view of Fig. 1;
Fig. 3 is the I place enlarged diagram of Fig. 1.
Embodiment
Among Fig. 1～Fig. 3, two eccentric soft or hard double sealing butterfly valves have valve body 1, body cavity has valve seat 2, the valve shaft 3 that communicates with body cavity is arranged on the valve body, valve shaft is connected with butterfly plate 4 at an end of body cavity, be embedded with valve seals 5 on the valve seat, the excircle of butterfly plate has the step 6 that concaves, the outer useful screw that is uniformly distributed along the circumference 7 of step is connected in the outer ring pressing plate 8 of step, the groove that pressing plate and step are formed is embedded with the butterfly plate seal ring, and the butterfly plate seal ring is the butterfly plate combined seal ring that is combined by nonmetal sealing material seal ring 9 and metallic seal material seal circle 10.
Claims (1)
1. two eccentric soft or hard double sealing butterfly valve, valve body is arranged, body cavity has valve seat, the valve shaft that communicates with body cavity is arranged on the valve body, valve shaft is connected with butterfly plate at an end of body cavity, be embedded with valve seals on the valve seat, the excircle of butterfly plate has the step that concaves, the outer useful screw that is uniformly distributed along the circumference of step is connected in the outer ring pressing plate of step, the groove that pressing plate and step are formed is embedded with the butterfly plate seal ring, and it is characterized in that: the butterfly plate seal ring is the butterfly plate combined seal ring that is combined by nonmetal sealing material seal ring and metallic seal material seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202321115U CN201326751Y (en) | 2008-12-26 | 2008-12-26 | Double-eccentric soft-hard double-passage seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202321115U CN201326751Y (en) | 2008-12-26 | 2008-12-26 | Double-eccentric soft-hard double-passage seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326751Y true CN201326751Y (en) | 2009-10-14 |
Family
ID=41178724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202321115U Expired - Fee Related CN201326751Y (en) | 2008-12-26 | 2008-12-26 | Double-eccentric soft-hard double-passage seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326751Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343989A (en) * | 2013-07-29 | 2015-02-11 | 费希尔控制国际公司 | Fluid valve apparatus having enclosed seals |
| CN104964044A (en) * | 2015-06-30 | 2015-10-07 | 苏州纽威阀门股份有限公司 | Double eccentric butterfly valve |
-
2008
- 2008-12-26 CN CNU2008202321115U patent/CN201326751Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343989A (en) * | 2013-07-29 | 2015-02-11 | 费希尔控制国际公司 | Fluid valve apparatus having enclosed seals |
| CN104343989B (en) * | 2013-07-29 | 2019-10-11 | 费希尔控制国际公司 | Liquid stream valve gear with closed sealing element |
| CN104964044A (en) * | 2015-06-30 | 2015-10-07 | 苏州纽威阀门股份有限公司 | Double eccentric butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201326751Y (en) | Double-eccentric soft-hard double-passage seal butterfly valve | |
| CN202646763U (en) | High temperature abrasion resistant anti-corrosion ceramic ball valve | |
| CN101625035A (en) | Valve flap of stop valve | |
| CN201293112Y (en) | Double eccentric butterfly valve with composite butterfly plate seal ring | |
| CN202100732U (en) | Double-eccentric dual-sealing butterfly valve | |
| CN201187514Y (en) | Washer of seal bolt | |
| CN201902575U (en) | Double eccentric butterfly valve with composite butterfly plate seal ring | |
| CN203322300U (en) | Three-dimensional compensation and two-direction metal sealing butterfly valve | |
| CN204025712U (en) | One-sided soft or hard double seals butterfly valve | |
| CN102261473B (en) | Metal vermiculite compound seal gasket | |
| CN201443604U (en) | Piston balanced valve | |
| CN204610886U (en) | Soft sealing butterfly valve sealing pair structure | |
| CN203784359U (en) | Combined pressing ring sealed diaphragm valve | |
| CN204141038U (en) | A kind of high frequency ball valve | |
| CN201535365U (en) | Rubber sealing brake valve capable of replacing rubber sealing strips | |
| CN201844036U (en) | Buttery valve with U-shaped sealing ring | |
| CN201818814U (en) | Novel gate valve | |
| CN203052039U (en) | Combined gasket | |
| CN215214770U (en) | Three-eccentric soft sealing butterfly valve | |
| CN201723720U (en) | Rotary shaft lip seal for steel supporting ring structure | |
| CN204300396U (en) | A kind of eccentric all-liner butterfly valve | |
| CN202493686U (en) | Tap | |
| CN201034175Y (en) | Cut-off valve valve-seat structure | |
| CN206530720U (en) | A kind of hard seal butterfly valve | |
| CN210510232U (en) | Oil leakage sealing structure based on vacuum extruder gearbox |
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: 20091014 Termination date: 20111226 |