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Tensile Strength: | 30~40MPa |
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The steel reinforced polyethylene plastic pipe is a composite structure pipeline continuously produced in a production line. It is concretely produced through uniformly compounding a wound and weld-molded steel wire mesh and polyethylene or other thermoplastics, with the weld-molded steel wire mesh as a reinforcement frame and the polyethylene or other thermoplastics as a matrix. The raw material for producing the steel reinforced polyethylene plastic pipe are high-density polyethylene(HDPE) resin or medium-density polyethylene (MDPE) resin (for fuel gas conveyance), and low-carbon steel wires. It is mainly used for conveyance or mixed convey- ance of petroleum, natural gas industry oil, gas and sewage, and can also be used for conveyance of water or other corrosive liquids. The applied temperature of steel reinforced polyethylene plastic pipe is-40 ºC
: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 accu-mulation
:light in weight
:good weather resistance, good ultraviolet ray resis-tance
inner surface resisting high corrosion media, outer surface adapting to strong corrosive use environment
serial pipes, pipe fittings and connecting structures form a complete and safe pipeline systemSize
nominal outside diameter (Dn)/mm |
Average outer diameter dem and deviation |
Nominal wall thickness EN and limit deviation MM |
Net distance from steel wire to inner and outer walls |
||||
Nominal pressure/MPa |
|||||||
1.0 |
1.6 |
2.0 |
2.5 |
4.0 |
|||
75 |
75+1.0 0 |
- |
- |
9.0+1.5 0 |
9.0+1.5 0 |
9.0+2.5 0 |
≥1.8 |
90 |
90+1.0 0 |
- |
- |
9.0+1.5 0 |
9.0+1.5 0 |
9.0+2.5 0 |
|
110 |
110+1.0 0 |
- |
- |
9.0+1.5 0 |
9.0+1.5 0 |
9.0+2.5 0 |
|
125 |
125+1.0 0 |
- |
9.0+1.5 0 |
9.0+1.5 0 |
9.0+2.0 0 |
9.0+3.0 0 |
|
140 |
140+1.0 0 |
- |
10.0+1.5 0 |
10.0+1.5 0 |
10.0+2.0 0 |
10.0+3.0 0 |
|
160 |
160+1.5 0 |
- |
12.0+1.5 0 |
12.0+1.5 0 |
12.0+2.0 0 |
12.5+3.0 0 |
|
180 |
180+1.5 0 |
- |
12.0+1.5 0 |
12.0+1.5 0 |
12.0+2.0 0 |
12.5+3.0 0 |
|
200 |
200+1.5 0 |
- |
12.0+1.5 0 |
12.0+1.5 0 |
12.0+2.0 0 |
12.5+3.0 0 |
|
225 |
225+1.5 0 |
- |
12.0+2.0 0 |
12.0+2.0 0 |
12.0+2.0 0 |
- |
|
250 |
250+2.0 0 |
12.5+2.0 0 |
12.5+2.0 0 |
12.5+2.0 0 |
13.0+2.0 0 |
- |
|
280 |
280+2.0 0 |
12.5+2.0 0 |
12.5+2.0 0 |
12.5+2.0 0 |
13.0+2.0 0 |
- |
≥2.5 |
315 |
315+2.0 0 |
12.5+2.0 0 |
12.5+2.0 0 |
12.5+2.0 0 |
13.0+2.5 0 |
- |
|
355 |
355+2.5 0 |
14.0+2.0 0 |
14.0+2.0 0 |
14.5+2.0 0 |
- |
- |
|
400 |
400+2.5 0 |
15.0+2.5 0 |
15.0+2.5 0 |
15.5+2.5 0 |
- |
- |
|
450 |
450+2.5 0 |
15.0+2.5 0 |
15.0+2.5 0 |
15.5+2.5 0 |
- |
- |
≥3.0 |
500 |
500+2.5 0 |
15.5+2.5 0 |
15.5+2.5 0 |
16.0+3.0 0 |
- |
- |
|
560 |
560+3.0 0 |
15.5+3.0 0 |
16.0+3.0 0 |
16.5+3.0 0 |
- |
- |
|
630 |
630+3.0 0 |
19.0+3.0 0 |
20.0+3.0 0 |
- |
- |
- |
Executive standards: Steel wire mesh welded skeleton reinforced polyethylene composite pipes and fittings QB/T5538-2020, steel skeleton reinforced polyethylene composite pipes for petroleum and natural gas industries SY/T6663.1-2012. (This standard also applies to steel skeleton polyethylene plastic composite pipes for water supply and fire protection)
Nominal inner diameter(Dn)/mm |
Allowable deviation of average inner diameter/% |
nominal pressure/MPa |
Distance from steel wire to inner and outer walls/MM |
||||
1.0 |
1.6 |
2.0 |
2.5 |
4.0 |
|||
Nominal wall thickness EN and limit deviation/MM |
|||||||
50 |
±1 |
- |
- |
- |
9.0+1.4 0 |
10.6+1.6 0 |
≥1.8 |
65 |
- |
- |
- |
9.0+1.4 0 |
10.6+1.6 0 |
||
80 |
- |
- |
- |
9.0+1.4 0 |
11.7+1.8 0 |
||
100 |
- |
9.0+1.4 0 |
9.0+1.4 0 |
11.7+1.8 0 |
11.7+1.8 0 |
||
125 |
- |
10.0+1.5 0 |
10.0+1.5 0 |
11.8+1.8 0 |
12.3+1.8 0 |
||
150 |
12.0+1.8 0 |
12.0+1.8 0 |
12.0+1.8 0 |
12.0+2.4 0 |
15.5+2.6 1 |
||
200 |
12.0+1.8 0 |
12.0+1.8 0 |
12.5+1.9 0 |
12.5+1.9 0 |
- |
||
250 |
±0.8 |
12.0+1.8 0 |
12.5+1.9 0 |
12.5+1.9 0 |
13.0+2.0 0 |
- |
≥2.5 |
300 |
12.5+1.9 0 |
12.5+1.9 0 |
12.5+3.2 0 |
- |
- |
||
350 |
15.0+2.4 0 |
15.0+2.4 0 |
15.5+2.6 0 |
- |
- |
||
400 |
±0.5 |
15.0+2.4 0 |
15.0+2.4 0 |
15.5+2.6 0 |
- |
- |
≥3.0 |
450 |
15.5+2.6 0 |
16.0+2.6 0 |
16.5+2.6 0 |
- |
- |
||
500 |
15.5+2.6 0 |
16.0+2.6 0 |
16.5+2.6 0 |
- |
- |
||
600 |
19.0+3.0 0 |
20.0+3.0 0 |
- |
- |
- |
||
Note: When ND ≥ 250 and PN ≥ 2.0, due to the increase in PN, the wall thickness increases inward, allowing the minimum average inner diameter to fluctuate downward by no more than 1.5mm compared to the values in the table. |
|||||||
The main body of a pipe refers to the part of the pipe body that bears all internal pressure. |
Executive standard: Steel skeleton polyethylene plastic composite pipes for water supply CJ/T123-2016.