CN203082236U - Conveniently adjusted butterfly valve with corrosion-resistant valve plate - Google Patents
Conveniently adjusted butterfly valve with corrosion-resistant valve plate Download PDFInfo
- Publication number
- CN203082236U CN203082236U CN 201320080683 CN201320080683U CN203082236U CN 203082236 U CN203082236 U CN 203082236U CN 201320080683 CN201320080683 CN 201320080683 CN 201320080683 U CN201320080683 U CN 201320080683U CN 203082236 U CN203082236 U CN 203082236U
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- Prior art keywords
- valve
- valve rod
- plate
- corrosion
- valve plate
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- Expired - Fee Related
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Abstract
The utility model discloses a conveniently adjusted butterfly valve with a corrosion-resistant valve plate. The conveniently adjusted butterfly valve comprises a valve body, a valve rod, a valve seat, the valve plate and an end cover. A synthetic sealing gasket is arranged on the sealing surface of the valve seat; the end cover is fixedly connected with the lower end of the valve rod and the bottom end of the valve body; a valve plate adjusting mechanism is arranged at the lower end of the valve rod; the valve plate adjusting mechanism comprises a screw penetrating through the end cover, and a cap sleeved on the screw; a plane bearing and a supporting plate are arranged between the lower end of the valve rod and the end cover from top to bottom; the valve rod is supported on the plane bearing; and the upper end of the screw is propped against the lower end surface of the supporting plate. The butterfly valve has high corrosion resistance, is small in sealing operation torque, and is particularly applicable to large-diameter pipelines for conveying corrosive fluid medium.
Description
Technical field
The utility model relates to a kind of butterfly valve.
Background technique
Butterfly valve is widely used in carrying in producer, coal gas, rock gas, liquefied petroleum gas (LPG), town gas, cold and hot air, chemical industry smelting and the engineering systems such as generation environment-friendly, building water supply and drainage on the pipeline of various corrosivity, non-corrosive fluids medium as a kind of valve that mainly plays cut-out and throttling action on pipeline.The butterfly valve of prior art is by the cooperate sealing that guarantee butterfly valve of valve plate with valve seat, and its valve seat is provided with the General Purpose Rubber sealing gasket.This General Purpose Rubber sealing gasket corrosion-resistant, when carrying the active sulfur body medium, the butterfly valve seal place is easily because of the not corrosion-resistant sealing that influences butterfly valve of sealing gasket.On the other hand, the butterfly valve of prior art is by rotation valve rod, thereby the valve plate that drives on the valve rod rotates, thereby realizes the unlatching of butterfly valve or close.For macrotype butterfly valve, because valve plate, valve rod weight are heavier, and the valve rod lower end directly is bearing on the end cap of its lower end, therefore, needs bigger seal operation moment of torsion when butterfly valve cuts out.
The model utility content
The utility model proposes a kind of good corrosion resistance at the deficiencies in the prior art, the corrosion-resistant valve plate convenient regulating type butterfly valve that the seal operation moment of torsion is little.
The utility model is achieved through the following technical solutions technical goal.
Corrosion-resistant valve plate convenient regulating type butterfly valve, it comprises valve body, valve rod, valve seat, valve plate and end cap; Described end cap is fixedly connected on the bottom of valve rod lower end, valve body; Described valve rod lower end is provided with the valve plate controlling mechanism; Described valve plate controlling mechanism comprises the screw that runs through end cap, the also cap on the cover cartridge screw; Its improvements are: described valve base sealing surface is provided with synthetic sealing gasket; Be provided with plane bearing, supporting plate between described valve rod lower end and the end cap from top to bottom; Described valve rod is bearing on the plane bearing; The upper end of described screw withstands on the lower end surface of supporting plate.
The optimized project of such scheme is: described valve rod lower end is provided with the shaft shoulder and cooperates with the plane bearing endoporus.
The optimized project of such scheme is: the synthetic sealing gasket in described valve base sealing surface is a polytetrafluoroethylene sealing gasket.
The utility model compared with prior art has following good effect:
1. the valve base sealing surface is provided with polytetrafluoroethylene sealing gasket, has stronger corrosion resistance.
2. the valve rod lower end is bearing on the plane bearing, and rotation valve rod only needs very little moment of torsion, and the seal operation moment of torsion is little.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
Corrosion-resistant valve plate convenient regulating type butterfly valve shown in the drawings, it comprises valve body 1, valve rod 5, valve seat 2, valve plate 4 and end cap 8; Valve seat 2 sealing surfaces are provided with synthetic sealing gasket 3, and in the present embodiment, the synthetic sealing gasket 3 of valve seat 2 sealing surfaces is a polytetrafluoroethylene sealing gasket.
End cap 8 is fixedly connected on the bottom of valve rod 5 lower ends, valve body 1; Valve rod 5 lower ends are provided with the valve plate controlling mechanism; The valve plate controlling mechanism comprises the screw 9 that runs through end cap 8, the also cap 10 on the cover cartridge screw 9, is provided with plane bearing 6, supporting plate 7 between valve rod 5 lower ends and end cap 8 from top to bottom; Valve rod 5 is bearing on the plane bearing 6; The upper end of screw 9 withstands on the lower end surface of supporting plate 7, and in the present embodiment, valve rod 5 lower ends are provided with the shaft shoulder and cooperate with plane bearing 6 endoporus.
Claims (3)
1. corrosion-resistant valve plate convenient regulating type butterfly valve, it comprises valve body (1), valve rod (5), valve seat (2), valve plate (4) and end cap (8); Described end cap (8) is fixedly connected on the bottom of valve rod (5) lower end, valve body (1); Described valve rod (5) lower end is provided with the valve plate controlling mechanism; Described valve plate controlling mechanism comprises the screw (9) that runs through end cap (8), the also cap (10) on the cover cartridge screw (9); It is characterized in that: described valve seat (2) sealing surfaces is provided with synthetic sealing gasket (3); Be provided with plane bearing (6), supporting plate (7) between described valve rod (5) lower end and the end cap (8) from top to bottom; Described valve rod (5) is bearing on the plane bearing (6); The upper end of described screw (9) withstands on the lower end surface of supporting plate (7).
2. corrosion-resistant valve plate convenient regulating type butterfly valve according to claim 1 is characterized in that: described valve rod (5) lower end is provided with the shaft shoulder and cooperates with plane bearing (6) endoporus.
3. corrosion-resistant valve plate convenient regulating type butterfly valve according to claim 1 and 2 is characterized in that: the synthetic sealing gasket (3) of described valve seat (2) sealing surfaces is a polytetrafluoroethylene sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080683 CN203082236U (en) | 2013-02-21 | 2013-02-21 | Conveniently adjusted butterfly valve with corrosion-resistant valve plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080683 CN203082236U (en) | 2013-02-21 | 2013-02-21 | Conveniently adjusted butterfly valve with corrosion-resistant valve plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082236U true CN203082236U (en) | 2013-07-24 |
Family
ID=48828076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320080683 Expired - Fee Related CN203082236U (en) | 2013-02-21 | 2013-02-21 | Conveniently adjusted butterfly valve with corrosion-resistant valve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987180A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | High pressure resistant eccentric butterfly valve |
-
2013
- 2013-02-21 CN CN 201320080683 patent/CN203082236U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987180A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | High pressure resistant eccentric butterfly 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: 20130724 Termination date: 20150221 |
|
| EXPY | Termination of patent right or utility model |