Steel Belt Wrapped Polyethylene Composite Pipe
Porous Steel Belt Polyethylene Composite Pipe
ApplicationApplication
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7 Jan 2019
1. Chemical industry: process pipes and discharge pipes for conveying corrosive gases , liquids and solid powders in the industries of acid , alkali and salt manufacturing , petroleum industry, fertilizer, pesticide , pharmacy, chemistry, mining , rubber and plastics .
2. Oil and gas fields: oily sewage , gas field sewage , oil-gas mixture , oil well reinjection polymer solution gathering and transportation pipelines and secondary and tertiary oil recovery and gathering and transportation process pipelines .
3. Mines: pulp , tailings , ventilation pipes and engineering pipes .
4. Textile , printing and dyeing , paper industry: process piping and discharge pipes for conveying corrosive media .
5. Municipal engineering: urban building water supply and drainage , drinking water, heating network backwater, natural gas and gas transmission pipelines .
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7 Jan 2019
6. Non-ferrous metals: used to transport corrosive medium in non-ferrous metal smelting.
7. Agriculture: Deep well pipes , filter tube , culvert pipes , drainage pipes , ballast pipes , ventilation pipes , etc .
8. Shipbuilding: sewage pipes , drainage pipes , ballast pipes and ventilation pipes on board.
9. Seawater transportation: seawater transportation in desalination plants ,
coastal power plants , seaports , submarine pipelines and optical cable (cable) conduits , etc.
10. Thermoelectric engineering: backwater transportation of process water and waste residue transportation .
11. Expressway: buried drainage pipe , cable conduit .
PROPERTIESPROPERTIES
| Characteristics | Requirements |
| Ring stiffness /(kN/ m²) | >8 |
| Flat test | No breakage |
| Longitudinal shrinkage ( 110 ° C, hold for 1 h) | ＜0 .3% |
| Hydraulic test 20℃ , 1 h, nominal pressure × 280℃ , 165 h, nominal pressure × 2 × 0.71 ( reduction factor). | No breakage |
| Burst pressure test20 ° C, burst pressure ≥nominal pressure × 3.0 | blow up |
| Oxidation induction time | ≥20min |
| Weather resistance a (after the pipe receives ≥ 3. 5GJ/ m2 aging energy cumulatively) | Hydraulic test: no rupture Burst pressure test: blasting Oxidation induction time (200 ° C ) : ≥20min |
| a Only for blue composite tubes. | |
Product performanceperformance
| Specifications and dimensions of perforated steel strip polyethylene composite pipes | ||||
| Dn/ mm | en/ mm | Inroundness mm | Nominal pressure Mpa | Minimum S valuemm |
| 500 + 0 . 5 | 4.00 + 0 . 5 | 1 .0 | 2 .0 | 1 .5 |
| 630 + 0 . 6 | 4. 50 + 0 . 6 | 1 .2 | 2 .0 | 1 .5 |
| 750 + 0 . 7 | 5.00 + 0 . 7 | 1 .5 | 2 .0 | 1 .5 |
| 900 + 0 . 9 | 4. 50 + 0 . 8 | 1 .8 | 2 .0 | 1 .5 |
| 1100 + 1 . 0 | 6.00 + 0 . 9 | 2 .2 | 2 .0 | 1 .5 |
| 1400 + 1 . 1 | 8.00 + 1 . 0 | 2 .8 | 1 .6 | 2 .5 |
| 1600 + 1 . 2 | 1.00 + 1 . 1 | 3 .2 | 1 .6 | 2 .5 |
| 2000 + 1 . 3 | 11.00 + 1 . 2 | 4 .0 | 1 .6 | 2 .5 |
| 2500 + 1 .4 | 12.00 + 1 . 3 | 5 .0 | 1 .6 | 3 .5 |
| 3150 + 1 . 5 | 13.00 + 1 .4 | 6 .3 | 1 .25 | 3 .5 |
| 4000 + 1 . 6 | 15.00 + 1 . 5 | 8 .0 | 1 .25 | 3 .5 |
| 5000 + 1 . 7 | 16.00 + 1 . 6 | 10 .0 | 1 .0 | 4 .0 |
| 6300 + 1 . 8 | 17.00 + 1 . 7 | 12 .3 | 1 .0 | 4 .0 |
| Note: 1. The nominal pressure of the composite pipe is the maximum allowable pressure of the pipe to transport water at 20 ° C. If the temperature changes, the working pressure should be corrected according to the temperature pressure coefficient of different materials. 2.S-value: Enhance the distance from the outer diameter of the body to the outer surface of the pipe. | ||||