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Instruction: Steel framed polyethylene plastic pipe is a kind of composite structure pipe which takes winding and welding steel wire mesh as the strengthening skeleton and polyethylene or other thermoplastics as the matrix, and compacts the two together evenly, and produces continuously on the production line.
Product parameter: Specifications
Nominal diameter |
The average diameter |
Limit deviation of mean od mm |
Nominal pressure，Mpa |
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OD |
Oil, water and mixed transport |
Gas transmission |
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mm |
1.6 |
2.5 |
0.8 |
0.4 |
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Nominal wall thickness EN and limit deviation，mm |
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75 |
75 |
0+0.7 |
— |
9 0+1.4 |
9 0+1.4 |
9 0+1.4 |
90 |
90 |
0+0.8 |
— |
9 0+1.4 |
9 0+1.4 |
9 0+1.4 |
110 |
110 |
0+1.0 |
— |
9 0+1.4 |
9 0+1.4 |
9 0+1.4 |
125 |
125 |
0+1.1 |
9 0+1.4 |
9 0+1.4 |
9 0+1.4 |
9 0+1.4 |
140 |
140 |
0+1.3 |
10 0+1.5 |
10 0+1.5 |
10 0+1.5 |
10 0+1.5 |
160 |
160 |
0+1.5 |
11.5 0+1.5 |
11.5 0+1.5 |
11.5 0+1.3 |
11.5 0+1.3 |
180 |
180 |
0+1.6 |
12 0+1.8 |
12 0+1.8 |
12 0+1.8 |
12 0+1.8 |
200 |
200 |
0+1.8 |
12 0+1.8 |
12 0+1.8 |
12 0+1.8 |
12 0+1.8 |
225 |
225 |
0+2.0 |
12.5 0+1.9 |
12.5 0+1.9 |
12.5 0+1.9 |
12.5 0+1.9 |
250 |
250 |
0+2.5 |
12.5 0+2.0 |
12.5 0+2.0 |
12.5 0+2.0 |
12.5 0+2.0 |
315 |
315 |
0+2.8 |
12.5 0+2.4 |
— |
12.5 0+2.4 |
12.5 0+2.4 |
355 |
355 |
0+3.2 |
12.5 0+2.4 |
— |
12.5 0+2.4 |
12.5 0+2.4 |
400 |
400 |
0+3.6 |
15 0+2.9 |
— |
15 0+2.9 |
15 0+2.9 |
450 |
450 |
0+4.1 |
15 0+2.9 |
— |
15 0+2.9 |
15 0+2.9 |
500 |
500 |
0+4.5 |
16 0+3.1 |
— |
16 0+3.1 |
16 0+3.1 |
560 |
560 |
0+5.0 |
16 0+3.1 |
— |
16 0+3.1 |
16 0+3.1 |
630 |
630 |
0+5.7 |
20 0+3.6 |
— |
20 0+3.6 |
20 0+3.6 |
Standard: SY/T 6662.1-2012 Steel reinforced polyethylene plastic pipe for petroleum and natural gas industries.
Pipe properties:
Physical and mechanical properties:
项目 Iterms |
指标 Index |
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1 |
受压开裂稳定性 Compression cracking stability |
表面无裂纹 |
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2 |
纵向回缩率 Longitudinal dimension recovery ratio（110℃，保持keep 1h），% |
＜3 |
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3 |
短期静液压强度试验 |
温度(T)20℃，时间(time)100h，试验压力(test pressure)；公称压力(nominal pressure)*1.5 |
不渗漏，不破裂 |
|
温度(T)70℃，时间(time)165h，试验压力(test pressure)；公称压力(nominal pressure)*1.5*0.7 | ||||
温度(T)80℃，时间(time)100h，试验压力(test pressure)；公称压力(nominal pressure)*1.5*0.6*2.291 | ||||
4 |
瞬时爆破强度试验 |
气体介质 Gaseous medium |
温度(T)：20℃，瞬时爆破压力 Instantaneous burst pressure |
≥公称压力*3.3*1.6 |
其他类型介质 Other types of media |
≥公称压力*3 |
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5 |
耐化学性能 Chemical resistance |
化学药品试液种类及实验要求 |
无龟裂、变黏、异状等现象 |
|
6 |
氧化诱导时间 Thermal stability（200℃），min |
＞20 |
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7 |
熔体质量流动速率 Melt mass flow rate（MFR)（190℃，5kg），g/10min |
加工前后变化＜20% |
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8 |
耐候性试验Weathering test（复合管累计接受Composite pipe cumulative acceptance≥3.5GJ/㎡老化能量后After aging energy） |
仍能满足短期静水压强度试验要求 |
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Nominal pressure coefficient:
温度 Temperature T ℃ |
-20﹤t《20 |
20﹤t《30 |
30﹤t《40 |
40﹤t《50 |
50﹤t《60 |
60﹤t《70 |
修正系数 Correction factor |
1 |
0.95 |
0.90 |
0.86 |
0.81 |
0.70 |
Pipe bending radius is allowed:
公称外径 |
75 |
90 |
110 |
125 |
140 |
160 |
200 |
225 |
250 |
315 |
355 |
400 |
450 |
500 |
560 |
630 |
允许弯曲半径 |
80 |
80 |
80 |
80 |
80 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
Spacing of overhead laying brackets:
公称外径 |
75 |
90 |
110 |
125 |
140 |
160 |
200 |
225 |
250 |
315 |
355 |
400 |
450 |
500 |
560 |
630 |
支架间距 Support spacing（m） |
2.5 |
2.5 |
3.0 |
3.0 |
3.5 |
3.5 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
4.0 |
Features:
Good creep resistance, high persistent mechanical strength
Better temperature resistance than pure PE pipes
No rapid crack propagation
Smooth and low-flow resistance inner wall
Good impact resistance
Easy locating and tracking
Proper axial flexibility
Enough ring rigidity
Pipe wall free from wax deposition and scale formation
Small thermal expansion coefficient
Non-toxicity, no decomposition, no microbial
Light in weight
Good weather resistance, good ultraviolet ray resistance
Inner surface resisting high corrosive media, outer surface adapting to strong corrosive use environment
Serial pipes, pipe fittings and connecting structures form a complete and safe pipeline system.
Line of production:
Applications:
Oilfield Oilfield gathering, crude oil or product oil conveyance, injection wells, brine conveyance, especially suitable for conveyance of sulfur-containing oil, gas, water and other media.
Chemical Engineering conveyance of corrosive media in petrochemical engineering, acid, alkali industry, the pesticide industry and the pharmacy industry.
Municipal Construction municipal water supply and drainage, and conveyance of natural gas and coal gas.
Ship shipboard sewage pipe, shipboard water supply and drainage.
Mine ore slurry conveyance, water pumping.
Agriculture pumping from deep well, water filtering, dry land irrigation, underdrainage.
Seawater Conveyance seawater conveyance.
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