CN202418635U - PFA-lined butterfly valve - Google Patents
PFA-lined butterfly valve Download PDFInfo
- Publication number
- CN202418635U CN202418635U CN2012200189166U CN201220018916U CN202418635U CN 202418635 U CN202418635 U CN 202418635U CN 2012200189166 U CN2012200189166 U CN 2012200189166U CN 201220018916 U CN201220018916 U CN 201220018916U CN 202418635 U CN202418635 U CN 202418635U
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- Prior art keywords
- valve
- butterfly
- valve body
- pfa
- butterfly plate
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- Expired - Lifetime
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Abstract
The utility model relates to a PFA (perfluoroalkoxy polymer) lined butterfly valve which comprises a valve body, a valve base, a valve rod and a butterfly plate installed in the valve body and driven by the valve rod, wherein the sealing surface of the butterfly plate is a spherical surface. According to the PFA lined butterfly valve, as the sealing surface of the butterfly plate is designed into the spherical surface, the sealing surfaces between the butterfly plate and the valve body are in line contact instead of surface contact, therefore, the friction force is reduced and the effects that the butterfly valve is smaller in torque and portable in opening and closing operations are achieved.
Description
Technical field
The utility model relates to a kind of butterfly valve, especially a kind of PFA Butterfly valve with liner.
Background technique
The operation of PFA (soluble poly tetrafluoroethylene macromolecular material) Butterfly valve with liner is light, good seal performance, and Corrosion Protection is good, and long service life also can be made fast shut-off or regulate flow usefulness, mainly is applicable to the occasion that requires reliable sealing and well-tuned characteristic.So be industries such as oil, chemical industry and smelting some have than essential product on the deep-etching pipeline.But the general butterfly plate sealing surface of existing Butterfly valve with liner is a line seal, and when butterfly valve opened and closed, butterfly plate and valve base sealing were face seal, and area of contact is big like this, and it is heavy to cause opening and closing operation, and torque is bigger; In addition, valve rod and valve body cooperation place, the pad general commonly used that the valve rod shoulder adopts is stuffing box packing, the friction factor that causes butterfly plate when opening and closing, to rotate is bigger.
The model utility content
The problem that the utility model will solve is big, the heavy problem of operation of the friction factor that rotates when improving the keying of PFA Butterfly valve with liner in the background technique.
In order to overcome the above problems, the utility model provides a kind of PFA Butterfly valve with liner, the butterfly plate that comprises valve body, valve seat, valve rod, is installed in the valve body and drives by valve rod, and the sealing surface of said butterfly plate is a spherical.
Be provided with the bullet pad between said valve body and the valve seat, said valve body is provided with groove, and said bullet pad embeds said groove.
Be provided with bearing housing between said valve rod and the valve body; Corresponding to being provided with seal ring between the said valve body of valve rod and butterfly plate joint and the valve seat; Be provided with butterfly spring between said valve body and the seal ring, be provided with filler between valve seat and the seal ring, be provided with the O RunddichtringO between filler and the seal ring.
The described PFA Butterfly valve with liner of the utility model, the sealing surface through butterfly plate designs for spherical, makes that butterfly plate is that line contacts with sealing surface between the valve body, rather than the face contact, has reduced frictional force, and it is less to reach the butterfly valve torque, and it is light to open and close operation.
Description of drawings
Fig. 1 is that the described PFA Butterfly valve with liner of the utility model partly cuts open schematic representation
Fig. 2 is the A portion enlarged diagram of Fig. 1
Fig. 3 is the described PFA Butterfly valve with liner of a utility model butterfly plate schematic representation
1, valve rod; 2, valve body; 3, butterfly spring; 4, seal ring; 5, O RunddichtringO; 6, filler; 7, spherical; 8, bullet pad; 9, valve seat; 10, butterfly plate; 13, bearing housing.
Embodiment
Below in conjunction with accompanying drawing a kind of PFA Butterfly valve with liner of the utility model is described further.
Like Fig. 1, Fig. 2, shown in Figure 3, the PFA Butterfly valve with liner of present embodiment, the butterfly plate 10 that comprises valve body 2, valve seat 9, valve rod 1, is installed in the valve body 2 and drives by valve rod 1, the sealing surface of butterfly plate 10 is a spherical 7.Butterfly plate 10 is sealed into linear sealing with valve seat 9 when opening and closing, this design Butterfly valve with liner is operated light, good sealing effect.The described PFA Butterfly valve with liner of the utility model, the sealing surface through butterfly plate 10 designs for spherical, makes that butterfly plate 10 is that line contacts with sealing surface between the valve body 2, rather than the face contact, has reduced frictional force, and it is less to reach the butterfly valve torque, and it is light to open and close operation.
In the present embodiment, be provided with bullet pad 8 between said valve body 2 and the valve seat 9, valve body is provided with groove, and bullet pad 8 embeds groove.Said bullet pad 8 is made for silicone rubber material, both can be that silica gel also can be that rubber material is made certainly.At valve body 2 lumen centers places, be provided with the groove of placing silicone rubber, the degree of depth, width respectively are 3mm.When butterfly plate opens and closes, butterfly plate 10 extruding valve seats, extruding force directly passes on the silicone rubber of valve body 2 inside grooves.Silicone rubber has elasticity preferably, so promptly improved the sealability of Butterfly valve with liner, has guaranteed the working life of the light and overlength of Butterfly valve with liner operation again.
In the present embodiment; Be provided with bearing housing 13 between said valve rod 1 and the valve body 2; Corresponding to being provided with seal ring 4 between the valve body 2 of valve rod 1 and butterfly plate 10 joints and the valve seat 9; Be provided with butterfly spring 3 between valve body 2 and the seal ring 4, be provided with filler 6 between valve seat 9 and the seal ring 4, be provided with O RunddichtringO 5 between filler 6 and the seal ring 4.This design promptly prevents the phenomenon that leaks outside of Butterfly valve with liner effectively, has guaranteed the property nimbly and freely that butterfly plate 10 has rotated when opening and closing again.
The utility model is not limited to above embodiment and conversion.
Claims (3)
1. PFA Butterfly valve with liner, the butterfly plate (10) that comprises valve body (2), valve seat (9), valve rod (1), is installed in the valve body (2) and drives by valve rod (1), it is characterized in that: the sealing surface of said butterfly plate (10) is spherical (7).
2. a kind of PFA Butterfly valve with liner according to claim 1 is characterized in that: be provided with bullet pad (8) between said valve body (2) and the valve seat (9), said valve body is provided with groove, and said bullet pad (8) embeds said groove.
3. a kind of PFA Butterfly valve with liner according to claim 1; It is characterized in that: be provided with bearing housing (13) between said valve rod (1) and the valve body (2); Corresponding to being provided with seal ring (4) between the said valve body (2) of valve rod (1) and butterfly plate (10) joint and the valve seat (9); Be provided with butterfly spring (3) between said valve body (2) and the seal ring (4); Be provided with filler (6) between valve seat (9) and the seal ring (4), be provided with O RunddichtringO (5) between filler (6) and the seal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200189166U CN202418635U (en) | 2012-01-16 | 2012-01-16 | PFA-lined butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200189166U CN202418635U (en) | 2012-01-16 | 2012-01-16 | PFA-lined butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418635U true CN202418635U (en) | 2012-09-05 |
Family
ID=46743405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200189166U Expired - Lifetime CN202418635U (en) | 2012-01-16 | 2012-01-16 | PFA-lined butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418635U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363131A (en) * | 2013-07-23 | 2013-10-23 | 扬中市好特阀业有限公司 | Butterfly valve |
| CN104235394A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
| CN104235393A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
| CN107228200A (en) * | 2017-05-23 | 2017-10-03 | 杨秀波 | A kind of adjustable apparatus of valve |
-
2012
- 2012-01-16 CN CN2012200189166U patent/CN202418635U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235394A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
| CN104235393A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
| CN103363131A (en) * | 2013-07-23 | 2013-10-23 | 扬中市好特阀业有限公司 | Butterfly valve |
| CN107228200A (en) * | 2017-05-23 | 2017-10-03 | 杨秀波 | A kind of adjustable apparatus of valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: PFA Lined Butterfly Valve Effective date of registration: 20200909 Granted publication date: 20120905 Pledgee: Agricultural Bank of China Limited Wenzhou Ouhai sub branch Pledgor: ZHEJIANG BAITONG ANTICORROSION EQUIPMENT Co.,Ltd. Registration number: Y2020330000657 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |