CN1573197A - Elbow with inner covering - Google Patents
Elbow with inner covering Download PDFInfo
- Publication number
- CN1573197A CN1573197A CN 03143952 CN03143952A CN1573197A CN 1573197 A CN1573197 A CN 1573197A CN 03143952 CN03143952 CN 03143952 CN 03143952 A CN03143952 A CN 03143952A CN 1573197 A CN1573197 A CN 1573197A
- Authority
- CN
- China
- Prior art keywords
- elbow
- angle
- inner covering
- inside liner
- straight
- 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.)
- Pending
Links
Abstract
The present invention designs an elbow with inner covering which includes two straight pipes connected in series with an included angle and is characterized in that the two straight pipes are disposed with inner coverings composed with the inner walls of the straight pipes. The material of the straight pipe is polypropylene; the material of the inner covering is copper. The detection result for the elbow of the invention shows that the sanitary property is fitting the safe type evaluation criterion of the life drinking water transport water equipments prescribed by GB/T17219 and the mechanical property can achieve the requirement prescribed by GB/T7306-1987, GB/T611-1985. Because the elbow of the invention is disposed with copper as the inner covering and uses polypropylene having certain intensity, therefore, it has high intensity, excellent corrosion resistance and can ensure the quality of the flow medium.
Description
Technical field
The present invention relates to a kind of pipe fitting, be specifically related to a kind of nonmetallic material elbow with inside liner.
Background technique
As everyone knows, elbow is a kind of important accessory, is widely used in the installation of pipeline and configuration.At present, the elbow that great majority are used for pipeline is homogenous material and makes, as adopts conventional cast iron or nonmetallic material, itself or insufficient strength, and perhaps corrosion easily influence the quality of circulation medium, so must improve.
Summary of the invention
The technical issues that need to address of the present invention are a kind of elbows with inside liner of design, to overcome the above-mentioned defective that prior art exists, satisfy people's demand.
Technological scheme of the present invention:
A kind of elbow with inside liner comprises two straight tubes with angle that are connected in series mutually, it is characterized in that, is equipped with the inside liner compound with the straight tube inwall in two straight tubes.
The material of said straight tube is a polypropylene, is called for short PP-R, and inside liner adopts red copper.
The present invention makes like this: make inside liner earlier, be placed on then and carry out molding in the mould, can obtain elbow of the present invention after the demoulding.
Elbow testing result of the present invention shows that sanitation performance meets the safe type evaluation of the Drinking Water transmission ﹠ distribution wetting system of GB/T17219 regulation, and mechanical property reaches GB/T7306-1987, the requirement of GB/T611-1985 defined.
Elbow of the present invention owing to be provided with red copper as inside liner, adopted again have should intensity polypropylene, therefore, intensity is higher, fine corrosion resistance can guarantee the quality of circulation medium.
Description of drawings
Fig. 1 is the structural representation of elbow of the present invention.
Embodiment
Referring to Fig. 1, elbow of the present invention comprises two straight tubes 1 with angle α that are connected in series mutually, it is characterized in that, is equipped with the inside liner 2 compound with straight tube 1 inwall in two straight tubes 1.
The material of said straight tube is a polypropylene, and inside liner adopts red copper.
The angle of the angle α that is addressed is 30～150 °, preferred 90 ° or 120 °.
As seen from Figure 1, said elbow is provided with interface 3, and the internal diameter of interface 3 is greater than the internal diameter of straight tube 1;
Further, the inwall of interface 3 is provided with internal thread 4 so that with being connected of other pipe fittings;
According to the present invention, also can outside interface 3, outside thread be set so that with being connected of other pipe fittings.
Claims (8)
1. the elbow with inside liner comprises two straight tubes (1) with angle α that are connected in series mutually, it is characterized in that, is equipped with the inside liner (2) compound with straight tube 1 inwall in two straight tubes (1).
2. the elbow with inside liner according to claim 1 is characterized in that, the material of said straight tube is a polypropylene, and inside liner adopts red copper.
3. elbow according to claim 1 and 2 is characterized in that the angle of the angle α that is addressed is 30～150 °.
4. elbow according to claim 3 is characterized in that the angle of the angle α that is addressed is 90 °.
5. elbow according to claim 3 is characterized in that the angle of the angle α that is addressed is 120 °.
6. elbow according to claim 1 and 2 is characterized in that, said elbow is provided with interface (3), and the internal diameter of interface (3) is greater than the internal diameter of straight tube (1).
7. elbow according to claim 6 is characterized in that, the inwall of interface (3) is provided with internal thread (4).
8. elbow according to claim 6 is characterized in that, outside interface (3) outside thread is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143952 CN1573197A (en) | 2003-06-23 | 2003-08-08 | Elbow with inner covering |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03232445 | 2003-06-23 | ||
| CN03232445.6 | 2003-06-23 | ||
| CN 03143952 CN1573197A (en) | 2003-06-23 | 2003-08-08 | Elbow with inner covering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1573197A true CN1573197A (en) | 2005-02-02 |
Family
ID=34523662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03143952 Pending CN1573197A (en) | 2003-06-23 | 2003-08-08 | Elbow with inner covering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1573197A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752395A (en) * | 2014-01-28 | 2014-04-30 | 平顶山华瑞锦橡耐磨材料有限公司 | Feeding elbow of mill |
| CN107270005A (en) * | 2017-06-29 | 2017-10-20 | 李永跃 | A kind of combined type local replacing elbow with rubber liner |
-
2003
- 2003-08-08 CN CN 03143952 patent/CN1573197A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752395A (en) * | 2014-01-28 | 2014-04-30 | 平顶山华瑞锦橡耐磨材料有限公司 | Feeding elbow of mill |
| CN103752395B (en) * | 2014-01-28 | 2016-04-06 | 平顶山华瑞锦橡耐磨材料有限公司 | A kind of mill feeding elbow |
| CN107270005A (en) * | 2017-06-29 | 2017-10-20 | 李永跃 | A kind of combined type local replacing elbow with rubber liner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |