Polyurethane Foam Insulation Pipe
PRODUCT PARAMETERS
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Product Indexes |
Reference Standard |
Standard Requirement |
Our product value |
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Outer protection pipe |
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Density (kg/m3) |
CJ/T114-4.2.3.1 |
≥940 |
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Elongation at break (%) |
CJ/T114-4.2.3.4 |
≥350 |
618 |
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Tensile yield strength (MPa) |
CJ/T114-4.2.3.4 |
≥19 |
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Longitudinal shrinkage rate (%) |
CJ/T114-4.2.3.5 |
≤3 |
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Long term Mechanical properties |
CJ/T114-4.2.3.6 |
>1500h(80℃,4.0 MPa)free from damage |
Pass |
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The difference of the melt flow rate (g/10min) |
CJ/T114-4.2.3.2 |
≤0.5 |
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Carbon Black Content % |
CJ/T114-4.2.3.1 |
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Polyurethane insulation layer |
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Density (kg/m³) |
CJ/T114-4.3.2 |
≥60 |
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Average pore size (mm) |
CJ/T114-4.3.1 |
≤0.5 |
qualified |
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Percentage of close area(%) |
CJ/T114-4.3.1 |
≥88 |
94 |
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Compressive strength(MPa) |
CJ/T114-4.3.3 |
≥0.3 |
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Water absorption(%) |
CJ/T114-4.3.4 |
Immersion in boiling water 90 minutes, bubble water absorption should be not more than 10% |
≤5.53 |
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Working steel pipe |
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Seamless steel pipe(≤DN150) |
GB8163 |
20# |
qualified |
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Spiral steel pipe(≥DN200) |
GB/T9711 or SY/T5037 |
Q235B |
qualified |
PRODUCT FEATURES
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Product name |
Thermal insulation direct buried pipe |
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Length |
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Nominal diameter |
DN25-1800 |
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Laid way |
Buried |
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Application |
Fluid Pipe, Natural gas, Gas, Oil, Hydraulic, chemical, drill, etc. |
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Production Standard |
The national standard GB/T29047-2012, CJ/T114-2000, CJ/T155-2001 |
TECHNICAL INDICATORS
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Nominal diameter |
OD ×Thickness(mm) |
Outer protection tube diameter ×Wall thickness(mm) |
Insulation thickness(mm) |
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25 |
32x3 |
29 |
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32 |
43x3 |
33 |
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40 |
48x3 |
31 |
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50 |
57x3 |
34 |
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65 |
140x3 |
33 |
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80 |
89x4 |
33 |
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100 |
108x4 |
36 |
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125 |
46 |
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150 |
|||
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200 |
219x6 |
48 |
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250 |
273x6 |
46 |
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300 |
325x7 |
420x7 |
|
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350 |
377x7 |
||
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400 |
426x7 |
62 |
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450 |
478x7 |
61 |
|
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500 |
529x7 |
63 |
|
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600 |
630x8 |
760x11 |
65 |
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700 |
720x8 |
850x12 |
65 |
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800 |
820x9 |
960x13 |
70 |
|
900 |
920x10 |
1054x14 |
67 |
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1000 |
1020x12 |
1155x14 |
77 |
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1200 |
1220x12 |
1380x15 |
80 |
|
1400 |
1420x14 |
1680x16 |
114 |
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