CN2064445U - Sealed butterfly bamper with corrosion protecting function - Google Patents
Sealed butterfly bamper with corrosion protecting function Download PDFInfo
- Publication number
- CN2064445U CN2064445U CN 90203680 CN90203680U CN2064445U CN 2064445 U CN2064445 U CN 2064445U CN 90203680 CN90203680 CN 90203680 CN 90203680 U CN90203680 U CN 90203680U CN 2064445 U CN2064445 U CN 2064445U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve shaft
- plate
- shaft hole
- 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.)
- Withdrawn
Links
Abstract
Disclosed is a sealed butterfly valve with a corrosion protecting function, relating to a turn angle type sealed butterfly valve which is arranged in a fluid process pipeline to control the flow capacity of fluid media in the fluid process pipeline. The utility model comprises a valve body, a valve shaft and a valve plate, and the valve shaft and the valve plate are arranged in the valve body. The wall of the valve body is provided with a valve shaft bore, the valve body and the inner wall of the valve shaft bore are coated with flexible sealed rubber, and the outside surface of the flexible sealed rubber is pressed with a corrosion protecting layer made from polytetrafluoroethylene. The valve plate is fixed on the valve shaft and is arranged in the valve body through the valve shaft, the outside surface of the valve body is pressed with a corrosion protecting layer made from phenolic aldehyde glass fiber reinforced plastic, and interference seal exists among the valve shaft, the valve plate and the inner wall of the valve body. The utility model which has the advantages of corrosion protecting performance, long service life and good sealed performance is in particular applied to strongly corrosive media.
Description
The utility model relates to a kind of corner formula seal butterfly valve that is installed in the fluid process pipe with flowing medium flow in the controlling plumbing fixtures.
Corner formula dish valve is a kind of control valve that comes flowing medium flow in the controlling plumbing fixtures with the form of rotational valve plate, and the angle range of valve plate is generally 0-90 °.Corner formula dish valve mainly is made of valve body and the valve shaft and the valve plate that are installed in the valve body.Valve body is the tubular shape of both ends open, has flange plate on its outer wall, is evenly equipped with on the flange plate screw to be installed and to be utilized bolt that valve body is connected in the fluid process pipe.Have vertical upper and lower valve shaft hole by the valve body center on the valve body wall, wherein going up the valve shaft hole is through hole.Valve plate is a disc-shaped, radially has the valve shaft hole by its center, and valve plate is sleeved on the valve shaft and by valve shaft by rigging pilotage and is installed in the valve body.The two ends of valve shaft are inserted in the upper and lower valve shaft hole on the valve body wall respectively and can be rotated therein.Corner formula dish valve has the branch of leakage type and sealed type.Concerning sealed type, cylinder-packing has soft seal rubber on its valve body and the valve shaft hole inwall, is the interference sealing between the valve shaft hole inwall between valve plate and the valve interior wall and on valve shaft and the valve body wall.Corner formula sealed type dish valve of the prior art, its valve shaft and valve plate are made by metallic material, and metallic material and rubber all not ability strong acid, alkali corrosion, thereby limited corner formula sealed type dish valve in the strong corrosive medium Application for Field.
The purpose of this utility model is a kind of corner formula sealed type dish valve of being able to bear strong corrosion of design.
To achieve these goals, the utility model is suppressed one deck phenolic fiberglass reinforced plastics anticorrosive coat in the appearance of metal valve plate simultaneously at appearance compacting one deck anticorrosive PTFE layer of the soft seal rubber of valve body and valve shaft hole inwall institute cylinder-packing.Be described in further detail below in conjunction with the technical characteristics of specific embodiment the corrosion-resistant sealed type dish of the utility model valve.
Accompanying drawing 1 is the structural representation of corrosion-resistant sealed type dish valve;
Accompanying drawing 2,3 is respectively the cross section and the longitudinal section schematic representation of valve plate.
With reference to the accompanying drawings 1,2,3, the corrosion-resistant sealed type dish of the utility model valve mainly is made up of valve body 1, valve shaft 2 and valve plate 3.Valve body 1 is the tubular shape of both ends open, have flange plate 4 on its outer wall, be evenly distributed with on the flange plate and screw 5 be installed and can be utilized bolt to be connected in the fluid process pipe, have vertical last lower valve shaft hole on the valve body wall by the valve body center, wherein going up the valve shaft hole is through hole, and cylinder-packing has soft seal rubber layer 6 on the inwall in valve body and valve shaft hole.In order to prevent corrosion, at soft seal rubber layer 6 appearances compacting one deck anticorrosive PTFE layer 7; In order to guarantee still to be the interference sealing between valve plate 3 and the anticorrosive PTFE layer 7, the thickness of anticorrosive PTFE layer is advisable with 1-2mm.Valve plate 3 is a disc-shaped, radially has the valve shaft hole 8 by its center, and valve plate 3 is sleeved on the valve shaft 2 and by valve shaft 2 by rigging pilotage 9 and is installed in the valve body 1.In order to prevent that valve plate is corroded, suppress a phenolic fiberglass reinforced plastics protective coating 10 at the outer surface of metal valve plate; In order to guarantee the mechanical strength of valve plate, the thickness of phenolic fiberglass reinforced plastics protective coating should be less than or equal to 1/3rd of valve plate total thickness.The two ends of valve shaft 2 are inserted the upper and lower valve shaft hole on the valve body wall respectively and can be rotated therein, still are the interference sealing between valve shaft 2 and the valve shaft hole inwall.
The utility model is corrosion-resistant, the life-span is long, good seal performance, is specially adapted to strong corrosive medium.
Claims (2)
1, a kind of corner formula sealed type dish valve that is installed in the fluid process pipe with flowing medium flow in the controlling plumbing fixtures is made up of valve body and the valve shaft and the valve plate that are installed in the valve body; Described valve body is the tubular shape of both ends open, have flange plate on its outer wall, be evenly equipped with on the flange plate and screw be installed and utilized bolt to be connected in the fluid process pipe, have vertical last lower valve shaft hole on the valve body wall by the valve body center, wherein going up the valve shaft hole is through hole, and cylinder-packing has soft seal rubber on the inwall in valve body and valve shaft hole; Described valve plate is a disc-shaped, and it radially has the valve shaft hole by its center, and valve plate is sleeved on the valve shaft and by valve shaft by rigging pilotage and is installed in the valve body, is the interference sealing between valve plate and the valve interior wall; The two ends of described valve shaft are inserted in the upper and lower valve shaft hole on the valve body wall respectively and can be rotated therein, are that interference seals between valve shaft and the valve shaft hole inwall; Feature of the present utility model is that the surface pressure at the soft seal rubber of described valve body and valve shaft hole inwall institute cylinder-packing is shaped on one deck anticorrosive PTFE layer, is suppressed with one deck phenolic fiberglass reinforced plastics anticorrosive coat in the appearance of described valve plate.
2, corner formula sealed type dish valve according to claim 1, the thickness that it is characterized in that described anticorrosive PTFE layer is 1-2mm; The thickness of described phenolic fiberglass reinforced plastics anticorrosive coat is less than or equal to 1/3 of valve plate total thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90203680 CN2064445U (en) | 1990-03-30 | 1990-03-30 | Sealed butterfly bamper with corrosion protecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90203680 CN2064445U (en) | 1990-03-30 | 1990-03-30 | Sealed butterfly bamper with corrosion protecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2064445U true CN2064445U (en) | 1990-10-24 |
Family
ID=4884823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90203680 Withdrawn CN2064445U (en) | 1990-03-30 | 1990-03-30 | Sealed butterfly bamper with corrosion protecting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2064445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984275A (en) * | 2010-06-07 | 2011-03-09 | 山东鲁临阀门有限公司 | Full-lining bidirectional composite soft sealing butterfly valve |
-
1990
- 1990-03-30 CN CN 90203680 patent/CN2064445U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984275A (en) * | 2010-06-07 | 2011-03-09 | 山东鲁临阀门有限公司 | Full-lining bidirectional composite soft sealing butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |