CN203500498U - Butterfly valve with valve base flange lined with fluorine - Google Patents
Butterfly valve with valve base flange lined with fluorine Download PDFInfo
- Publication number
- CN203500498U CN203500498U CN201320515506.7U CN201320515506U CN203500498U CN 203500498 U CN203500498 U CN 203500498U CN 201320515506 U CN201320515506 U CN 201320515506U CN 203500498 U CN203500498 U CN 203500498U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- butterfly
- protective layer
- valve rod
- 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 a butterfly valve with a valve base flange lined with fluorine. The butterfly valve comprises a valve body, a valve stem, a valve base, a butterfly plate and a handle, wherein the middle of the valve body is radially provided with the valve stem; the upper end of the valve stem is extended out of the valve body and is coaxially provided with the handle; the valve body is internally and axially provided with the valve base; the valve stem in the valve base is radially provided with the butterfly plate; the outer wall of the valve body is provided with multiple mounting plates at intervals; the valve stem is of a regular hexagonal prism structure; the valve plate is coaxially embedded in a regular-hexagonal valve stem mounting hole formed in the middle of the butterfly plate; a push-up bearing is coaxially arranged between the lower end of the valve stem and the valve base; a polytetrafluoroethylene protective layer is uniformly attached to the inner surface of the valve base; an integrally-cast polytetrafluoroethylene protective layer is uniformly attached to two axial end faces of the valve base and the valve body. The polytetrafluoroethylene protective layer attached to the surface of the rubber valve base of the butterfly valve can be used for protecting the valve base and improving the sliding performance, so that the valve base is not easy to damage; furthermore the elasticity is ensured by interlayer rubber, so that the sealing performance of the valve is better.
Description
Technical field
The utility model belongs to valve field, especially a kind of butterfly valve of valve seat flange lining fluorine.
Background technique
Use at engineering pipeline transportation art valve is very extensive, the basic structure of valve is co-axial seal setting-in valve seat in valve body now, valve rod is radially installed on valve body, on valve rod in valve body, be fixedly mounted with dish plate, dish plate coordinates with valve base sealing, thereby dish plate rotation or movement under the driving of valve rod open and close the runner in valve seat.Valve body outer radial is shaped with a plurality of flange plates for being connected with pipeline, is shaped with bolt mounting holes on flange plate.The sealing of valve plate and durability are to weigh the major criterion of valve quality, now valve produces rigidity friction because dish plate is long-term with valve seat, and particularly dish panel edges and valve seat interference during the rotation of dish plate, easily makes valve seat damage, cause seal failure, cause working life short.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of valve seat flange reasonable in design, simple in structure, easy to operate, long service life to serve as a contrast the butterfly valve of fluorine.
The utility model solves its technical problem and takes following technological scheme to realize:
A butterfly valve for valve seat flange lining fluorine, comprises valve body, valve rod, valve seat, dish plate and handle, at valve body middle part, one valve rod is radially installed, and this valve rod upper end is stretched out valve body and is coaxially installed with one handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat, valve outer wall spaced radial is shaped with a plurality of mounting plates, it is characterized in that: described valve rod is positive six prism structures, valve plate is coaxially inlaid in the made regular hexagon valve rod mounting hole in dish plate middle part, and between valve rod lower end and valve seat, is coaxially installed with thrust bearing on; Described valve seat interior surface is all attached is fixed with a teflon protective layer, and the axial both ends of the surface of valve seat and valve body are all with the teflon protective layer of one moulding by casting.
And described dish plate is double-sided symmetrical structure, dish plate is coated teflon protective layer evenly, and it is hemisphere face that dish plate outer rim adopts polishing treatment.
And; described valve seat is the one-body molded cylinder barrel shaped structure of making of rubber; this valve seat middle part is radially coaxially shaped with the orthohexagonal valve rod mounting hole coordinating with valve rod; valve rod mounting hole inwall one end is all coaxially shaped with a valve stem seal ring, and the outer wall of this valve stem seal ring is all with one deck teflon protective layer.
Advantage of the present utility model and good effect are:
1, the dish plate boundary dimension of this butterfly valve is accurate, and good airproof performance after throttling, between dish plate and valve seat without interference phenomenon, thereby guarantee that operational torque is little, valve long service life.
2, the rubber valve seat of this butterfly valve surface, with teflon protective layer, is protected valve seat and promotes sliding, and valve seat is not fragile, and laminated rubber guarantees elasticity, and the sealability of valve is better.
3, the utility model structural strength is high, good seal performance, and valve plate Corrosion Protection is good, can effectively meet corrosion resistant high requirement, and valve plate is high through polishing treatment and valve seat quality of fit, moment of torsion resistance is little, not fragile, and simple in structure, valve long service life.
Accompanying drawing explanation
Fig. 1 cuts open structural front view in of the present utility model;
Fig. 2 be Fig. 1 in cut open right elevation.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A butterfly valve for valve seat flange lining fluorine, comprises valve body 3, valve rod 2, valve seat 4, dish plate 6 and handle 1, at valve body middle part, one valve rod is radially installed, and this valve rod upper end is stretched out valve body and is coaxially installed with one handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat.
Valve outer wall spaced radial is shaped with a plurality of mounting plates 8, is all shaped with standard-sized mounting hole on the plurality of mounting plate, for being connected with piping flange.
Innovative point of the present utility model is:
Described valve rod is positive six prism structures, valve plate is coaxially inlaid in the made regular hexagon valve rod mounting hole in dish plate middle part, and between valve rod lower end and valve seat, be coaxially installed with thrust bearing 9 on, on this, thrust bearing effectively supports valve rod, prevent valve rod tenesmus, and increase valve rod rotate to flexibility reduce operational torque.
Described valve seat interior surface is the attached teflon protective layer 5 that is fixed with all; this teflon protective layer is smooth hard not easy to wear; effectively spacer medium prevents from corroding rubber valve seat; and the axial both ends of the surface of valve seat and valve body are all with the teflon protective layer of one moulding by casting; completely coated protection prevents dielectric corrosion valve seat and valve body, does not generally need to use separately pad while installing with pipeline.
Described dish plate is double-sided symmetrical structure, and dish plate smooth surface is smooth, and dish plate also can evenly be coated teflon protective layer, the rotation under the twisting force of valve rod of dish plate, thereby the keying of control valve.It is hemisphere face that dish plate outer rim adopts polishing treatment, reduces operational torque, and while guaranteeing sealing, dish plate and valve seat is sealed and matched.
Described valve seat is the one-body molded cylinder barrel shaped structure of making of rubber; this valve seat middle part is radially coaxially shaped with the orthohexagonal valve rod mounting hole that coordinates with valve rod (in figure not label); valve rod mounting hole inwall one end is all coaxially shaped with a valve stem seal ring 7, and the outer wall of this valve stem seal ring is all with one deck teflon protective layer.
The axial two ends outer rim of valve seat is all shaped with edge bulge loop 11, and this edge bulge loop is inlaid in the made valve seat mounting groove in the axial two ends of valve body.
Valve seat middle part outer wall is coaxially shaped with a reinforcement bulge loop 10, and this reinforcements bulge loop is inlaid in the middle part annular groove that valve seat correspondence makes, and effectively prevents that valve seat from moving axially, good stability, and also middle part is shaped with that to strengthen the valve seat intensity of bulge loop large, avoids valve seat protuberance to be out of shape.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the utility model and claims, various replacements, variation and modification are all possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (3)
1. a butterfly valve for valve seat flange lining fluorine, comprises valve body, valve rod, valve seat, dish plate and handle, at valve body middle part, one valve rod is radially installed, and this valve rod upper end is stretched out valve body and is coaxially installed with one handle; In valve body, be axially installed with valve seat, dish plate is radially installed on the valve rod in valve seat, valve outer wall spaced radial is shaped with a plurality of mounting plates, it is characterized in that: described valve rod is positive six prism structures, valve plate is coaxially inlaid in the made regular hexagon valve rod mounting hole in dish plate middle part, and between valve rod lower end and valve seat, is coaxially installed with thrust bearing on; Described valve seat interior surface is all attached is fixed with a teflon protective layer, and the axial both ends of the surface of valve seat and valve body are all with the teflon protective layer of one moulding by casting.
2. the butterfly valve of valve seat flange lining fluorine according to claim 1, is characterized in that: described dish plate is double-sided symmetrical structure, and dish plate is coated teflon protective layer evenly, and it is hemisphere face that dish plate outer rim adopts polishing treatment.
3. valve seat flange according to claim 1 serves as a contrast the butterfly valve of fluorine; it is characterized in that: described valve seat is the one-body molded cylinder barrel shaped structure of making of rubber; this valve seat middle part is radially coaxially shaped with the orthohexagonal valve rod mounting hole coordinating with valve rod; valve rod mounting hole inwall one end is all coaxially shaped with a valve stem seal ring, and the outer wall of this valve stem seal ring is all with one deck teflon protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515506.7U CN203500498U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve with valve base flange lined with fluorine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515506.7U CN203500498U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve with valve base flange lined with fluorine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500498U true CN203500498U (en) | 2014-03-26 |
Family
ID=50331478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515506.7U Expired - Fee Related CN203500498U (en) | 2013-08-22 | 2013-08-22 | Butterfly valve with valve base flange lined with fluorine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500498U (en) |
-
2013
- 2013-08-22 CN CN201320515506.7U patent/CN203500498U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |