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Steel skeleton reinforced PE composite pipe

Shanghai Eagleflying Industrial Co., Ltd.

Steel skeleton reinforced PE composite pipe

Brand Name : Eagleflying

Model Number : PCP series

Certification : ISO, CE

Place of Origin : China

MOQ : 1pc

Payment Terms : L/C, T/T

Packaging Details : Export packaging

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Steel skeleton reinforced PE composite pipe

Executive Standard:

(1) CJ/T123-2016 Steel Skeleton Polyethylene Plastic Composite Pipe for Water Supply

(2) HG/T3690-2012 Steel Skeleton Polyethylene Plastic Composite Pipe for Industrial Use

(3) CJ/T125-2014 Steel Skeleton Polyethylene Plastic Composite Pipe for Gas

(4) CECS223:2007 <Technical Specification for Steel Skeleton Polyethylene Plastic Composite Pipeline>

Steel skeleton plastic (PE) composite pipe is a new type of double-sided anti-corruption pressure pipe formed continuously on extrusion production line with high quality low carbon steel wire mesh as reinforcing phase and pipeline grade polyethylene as matrix.


Product features

Corrosion resistance and wear resistance of steel skeleton reinforced PE composite pipe

The steel skeleton plastic (PE) composite pipe is a kind of crystalline non-polar material used in steel skeleton polyethylene plastic composite pipe. Its chemical property is very stable, it can resist the erosion of various chemical media, and has no electrochemical corrosion. Its wear resistance is four times that of steel pipe.

Comparisons of abrasion resistance between steel skeleton reinforced PE composite pipe

Pipe name
Steel skeleton reinforced PE composite pipe
Steel pipe
Solid content
7
14
7
14
Abrasion loss
0.38
0.58
1.5
2.3

Hygienic properties of steel skeleton reinforced PE composite pipe

The hygienic index and safety of steel skeleton plastic (PE) composite pipe are in line with GB9687-1988 Hygienic Standard for Polyethylene Molded Products for Food Packaging and GB/T17219-1998 Safety Evaluation Standard for Drinking Water Transport and Distribution Equipment and Protective Materials respectively.

Smooth inner wall, low conveying resistance of steel steel skeleton reinforced PE composite pipe

The steel skeleton plastic (PE) composite pipe adopts the internal shaping process, its inner surface is smoother than the inner wall of the steel pipe, the absolute equivalent roughness is 0.01 mm, while the steel pipe is 0.2 mm. The transportation capacity under the same conditions is obviously higher than that of the steel pipe. At the same time, the inner wall of the pipe is smooth and wear-resistant, the transmission resistance is small, no scaling, no waxing, and the long-term operation has obvious energy-saving effect.

Long-term hydrostatic strength of steel skeleton reinforced PE composite pipe

According to ASTM D2837, D1598 and D1599 standards, BROUTMAN Laboratory in Chicago, USA, tested the long-term hydrostatic strength of steel skeleton plastic (PE) composite pipe. The results show that the creep resistance and damage resistance of steel-framed polyethylene-plastic composite pipes are much higher than that of polyethylene-plastic composite pipes of the same size at 23C60C80C.

Comparison of Rapid Cracking Performance between steel skeleton reinforced PE composite pipe

Pipe name
Circumferential stress (MPa)
Time (h)
Steel skeleton reinforced PE composite pipe
30.97
22752
PE pipe (PE80 SDR11)
10.71
10128
PE pipe (PE100 SDP11)
11.4
15041

Rapid cracking resistance and environmental stress cracking resistance of Steel skeleton reinforced PE composite pipe

Because of the existence of annular wire mesh, the radial load bearing capacity of composite pipe is greatly improved, which improves the anti-rapid cracking and environmental stress cracking performance of the plastic pipe wall of composite pipe. The Belgian BECETEL pipe fitting research center, according to the ISO13477 (S4 test) standard, tested the fast cracking resistance of DN steel skeleton plastic (PE) composite pipe. The results showed that the steel skeleton plastic (PE) composite pipe had excellent anti cracking performance.

Comparison of Long-term Performance between steel frame plastic (PE) composite pipe and plastic pipe (23℃)

Pipe name
Internal pressure (MPa)
Cracking length (mm)
Outer diameter (mm)
Steel skeleton reinforced PE composite pipe
1.0
No cracking
174
PE pipe (PE80 SDR11)
0.71
90
110
PE pipe (PE100 SDP11)
0.89
95
110

Impact resistance and dimensional stability of steel skeleton reinforced PE composite pipe

The elastic modulus of steel is usually about 200 times of that of HDPE. Due to the reinforcement of steel skeleton, the rigidity, impact resistance and dimensional stability of steel skeleton PE-plastic composite pipe are better than any other plastic pipe. At the same time, the structural characteristics of the reticulated steel skeleton make the composite pipe retain moderate flexibility in the axial direction. Therefore, the pipe has the characteristics of both rigidity and flexibility. It is not only convenient to transport and install, but also can effectively bear the longitudinal load caused by soil settlement or sliding, surface vehicles and so on, and has good operation reliability.

Traceable of Steel skeleton reinforced PE composite pipe

Because of the existence of metal mesh in steel skeleton polyethylene plastic composite pipe, the composite pipe has inherent traceability. It can be traced by magnetic metal detector without additional tracing or protection marks. It can effectively avoid Excavation Damage and provide great convenience for safe operation, emergency rescue and maintenance.

Product specification of steel skeleton plastic (PE) composite pipe

(1) Steel skeleton plastic (PE) composite pipe for Industrial Use and Water Supply

DN (mm)
en (mm)
For industrial use ( HG/T3690-2012)
For water supply (CJ/T123-2016)
PN (MPa)
Using temperature (℃)
PN (MPa)
Using temperature (℃)
50
11
4.0
-2070
4.0
080
65
11
80
12
100
12
2.5, 4.0
2.5, 4.0
125
12
150
12
1.6, 2.0, 2.5, 4.0
1.0, 1.6, 2.0, 2.5, 4.0
200
12.5
1.6, 2.0, 2.5
1.0, 1.6, 2.0, 2.5
250
12.5
1.0, 1.6, 2.0, 2.5
300
12.5
1.0, 1.6, 2.0
1.0, 1.6, 2.0
350
15
400
15
450
16
500
16
600
20
1.0, 1.6
1.0, 1.6

(2) Steel skeleton plastic (PE) composite pipe for gas

Excutive standard: CJ/T125-2014

DN (mm)
en (mm)
PN (MPa)
Using temperature (℃)
50
11
1.6
-2040
65
11
1.6
80
12
1.0
100
12
1.0
125
12
1.0
150
12
0.8
200
12
0.8
250
12
0.8
300
12
0.8
350
12
0.8
400
12
0.8
450
12
0.8
600
12
0.8

Correction coefficient of nominal pressure

For water supply
Temperature t (℃)
0<t≤20
20<t≤30
30<t≤40
40<t≤50
50<t≤60
60<t≤70
750<t≤80
Correction factor
1.0
0.95
0.90
0.86
0.81
0.76
0.60
For industrial use
Temperature t (℃)
0<t≤20
20<t≤30
30<t≤40
40<t≤50
50<t≤60
60<t≤70
Correction factor
1.0
0.95
0.90
0.86
0.81
0.76
For gas
Temperature t (℃)
0<t≤20
20<t≤25
25<t≤30
30<t≤35
35<t≤40
Correction factor
1.0
0.93
0.87
0.80
0.74

Design parameter

DN (mm)
50
65
80
100
125
150
200
250
300
350
400
450
500
600
Allowable bending (mm)
80d
80d
80d
80d
80d
80d
100d
100d
100d
110d
110d
110d
110d
110d

Spacing of overhead laying support

DN (mm)
50
65
80
100
125
150
200
250
300
350
400
450
500
600
Support spacing (m)
2.5
2.5
3.0
3.0
3.5
3.5
4.0
4.0
5.0
5.0
5.0
5.0
5.0
6.0

Thermal conductivity of steel skeleton reinforced PE composite pipe

Pipe name
Thermal conductivity (W/MK)
Steel skeleton reinforced PE composite pipe
0.43
PE pipe
0.43
Cast iron pipe
50~60.5

Main technology parameter of steel skeleton plastic (PE) composite pipe

Coefficient of linear expansion (1/)
(35.4~35.9) negative sixth power of 10
Longitudinal Dimension shrinkage (%)
0.4
Out-of-roundness (%)
5
Elastic modulus (GPa)
2~3
Thermal conductivity when 20 (W/MK)
0.43
Surface resistivity (Ω)
>thirteenth power of 10
Volume resistivity (Ω·cm)
>sixteen power of 10
Dielectric strength (KV/cm)
700
Roughness coefficient
0.009
Vicat softening point ()
117.9
Tensile yield strength (NPa)
22~23
Shore hardness
60
Notched impact strength (J/M)
15
Flexural creep modulus (MPa)
800

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