CN203335915U - Buried ball valve - Google Patents
Buried ball valve Download PDFInfo
- Publication number
- CN203335915U CN203335915U CN2013202959818U CN201320295981U CN203335915U CN 203335915 U CN203335915 U CN 203335915U CN 2013202959818 U CN2013202959818 U CN 2013202959818U CN 201320295981 U CN201320295981 U CN 201320295981U CN 203335915 U CN203335915 U CN 203335915U
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- Prior art keywords
- valve
- valve body
- buried ball
- ball valve
- protective coating
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Abstract
The utility model relates to the pipeline valve technology, specifically to a buried ball valve assembled on an underground pipeline for use. The buried ball valve comprises a valve body formed by a left valve body and a right valve body. One end of the valve body is provided with an inlet channel and the other end is provided with an outlet channel. A valve plug and a valve rod are disposed in the valve body. One end of the valve rod is extended into the valve body and is connected with the valve plug and the other end of the valve rod is disposed on the outside of the valve body. The buried ball valve is characterized in that a polyethylene protection layer is disposed on the outer surface of the valve body and is 1cm-5cm thick. The polyethylene layer disposed on the outer surface of the polyethylene protection layer can protect the valve body and prevent the valve body from being damaged because of corrosion, so that the service life of the valve is prolonged and the using safety of the valve is guaranteed.
Description
Technical field
The utility model relates to the pipeline valve technical field, is specifically related to a kind of buried ball valve used that is assemblied in the subsurface pipeline.
Background technique
Buried ball valve is embedded in below ground exactly, for oil/gasoline, LNG Liquefied natural gas/compressed petroleum gas, petrochemical pipe connects, and realizes the function of valve; Because buried ball valve is embedded in undergroundly, after long-time the use, can be corroded, damage, working life is short, affect the use of valve, the usage safety performance of reduction valve; Existing way is to be coated with the last layer protective paint outside valve body, but paint in use for some time, just can come off, and the formation to valve body that still can not be real is protected.In addition, the medium entered in valve body can form and impact spool, and spool is caused to damage.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of buried ball valve, at the outer surface of valve body, is provided with the polyethylene protective coating; it can form protection to valve body; prevent the valve body corrosion and damage, extending the working life of valve, guaranteeing the safety in utilization of valve.
Realize that the technical solution of the utility model is as follows:
Buried ball valve, comprise the valve body formed by left valve barrel, right valve barrel, one end of valve body is provided with inlet passage, the other end is provided with outlet passage, be provided with spool in valve body, and one end stretch in valve body and be connected with spool, the valve rod of the other end in the valve body outside, is characterized in that, outer surface at valve body is provided with the polyethylene protective coating, and the thickness of described polyethylene protective coating is 1cm-5cm.
Further, the polyethylene protective coating of described inlet passage, outlet passage outer surface is done certain extension to the outside of valve body.Here do certain extension for being connected with pipeline at the polyethylene protective coating of inlet passage, outlet passage outer surface to valve body is outside, the joint of pipeline and valve body is protected.The length of its extension is set as required.
Further, be provided with the relief chamber of taper in described inlet passage, the maximum end of the internal diameter of this taper relief chamber is connected with the inner chamber of valve body.Realize that by relief chamber the medium to entering in the valve body chamber is reduced pressure, prevent that medium from causing damage to spool.
Further, the maximum inner diameter of described taper relief chamber is identical with the internal diameter of outlet passage, and the medium of being convenient in valve body is discharged.
Adopted above-mentioned scheme; outer surface at valve body arranges the polyethylene protective coating; because polyethylene has good resistance to low temperature, resistance to high temperature, chemical stability is good, the erosion of the most of soda acids of ability; be insoluble to common solvent under normal temperature; the advantages such as moisture absorption is little, and electrical insulation capability is good, thus can play certain protective action to valve body; prevent the valve body corrosion, extend the working life of valve.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1 is left valve barrel, and 2 is right valve barrel, and 3 is valve body, and 4 is inlet passage, and 5 is outlet passage, and 6 is spool, and 7 is valve rod, and 8 is the polyethylene protective coating, and 9 is bolt, and 10 is extending end, and 11 is relief chamber.Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As Fig. 1, buried ball valve, comprise by left valve barrel 1, the valve body 3 that right valve barrel 2 forms, left valve barrel 1, right valve barrel 2 links together by bolt 9, and be provided with seal ring at both surface of contact, one end of valve body is provided with inlet passage 4, the other end is provided with outlet passage 5, in concrete enforcement, inlet passage is arranged in right valve barrel, outlet passage is arranged in left valve barrel, be provided with spool 6 in valve body 3, and one end stretch in valve body and be connected with spool, the valve rod 7 of the other end in the valve body outside, can make spool to inlet passage or/and inlet passage forms sealing by rotary valve rod, outer surface at valve body is provided with polyethylene protective coating 8, the thickness of polyethylene protective coating is 1cm-5cm, in concrete enforcement, the thickness of protective coating can be 1cm, 2cm, 3cm, 4cm, 5cm, certainly thickness can also arrange thicker,
Wherein, the polyethylene protective coating of inlet passage, outlet passage outer surface is done certain extension to the outside of valve body.The protective coating extending end 10 here is for the protection of the joint of valve body and pipeline.Be provided with the relief chamber 11 of taper in inlet passage, the maximum end of the internal diameter of this taper relief chamber is connected with the inner chamber of valve body.The maximum inner diameter of taper relief chamber is identical with the internal diameter of outlet passage.
Claims (4)
1. buried ball valve, comprise the valve body formed by left valve barrel, right valve barrel, one end of valve body is provided with inlet passage, the other end is provided with outlet passage, be provided with spool in valve body, and one end stretch in valve body and be connected with spool, the valve rod of the other end in the valve body outside, is characterized in that, outer surface at valve body is provided with the polyethylene protective coating, and the thickness of described polyethylene protective coating is 1cm-5cm.
2. buried ball valve according to claim 1, is characterized in that, the polyethylene protective coating of described inlet passage, outlet passage outer surface is done certain extension to the outside of valve body.
3. buried ball valve according to claim 1, is characterized in that, is provided with the relief chamber of taper in described inlet passage, and the maximum end of the internal diameter of this taper relief chamber is connected with the inner chamber of valve body.
4. buried ball valve according to claim 3, is characterized in that, the maximum inner diameter of described taper relief chamber is identical with the internal diameter of outlet passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202959818U CN203335915U (en) | 2013-05-24 | 2013-05-24 | Buried ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202959818U CN203335915U (en) | 2013-05-24 | 2013-05-24 | Buried ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335915U true CN203335915U (en) | 2013-12-11 |
Family
ID=49704591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202959818U Expired - Fee Related CN203335915U (en) | 2013-05-24 | 2013-05-24 | Buried ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260016A (en) * | 2019-06-21 | 2019-09-20 | 江苏柯伊诺阀门有限公司 | A kind of industrial pipeline anticorrosion valve casting |
-
2013
- 2013-05-24 CN CN2013202959818U patent/CN203335915U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260016A (en) * | 2019-06-21 | 2019-09-20 | 江苏柯伊诺阀门有限公司 | A kind of industrial pipeline anticorrosion valve casting |
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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: 20131211 Termination date: 20210524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |