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Pre Insulated Pipe

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Action: offer
Category: Construction - Other Building Materials
Country: China
Contact name: Brian Bai
Contact E-mail: view
Company: Tianjin Haimen Building Materials Co.,ltd
Description
Thermal insulation direct buried pipe can also be called pre insulated pipe, they are a kind of heat pipeline. We can supply high quality Heating Pipeline, welcome to choose us!
Product Indexes Reference Standard Standard Requirement Our product value
Outer protection pipe
Density (kg/m3 ) CJ/T114-4.2.3.1 ≥940 948.2
Elongation at break (%) CJ/T114-4.2.3.4 ≥350 618
Tensile yield strength (MPa) CJ/T114-4.2.3.4 ≥19 20.5
Longitudinal shrinkage rate (%) CJ/T114-4.2.3.5 ≤3 1.23
Long term Mechanical properties CJ/T114-4.2.3.6 >1500h(80℃,4.0 MPa)free from damage Pass
The difference of the melt flow rate (g/10min) CJ/T114-4.2.3.2 ≤0.5 0.11
Carbon Black Content % CJ/T114-4.2.3.1 2.5±0.5 2.4
Polyurethane insulation layer
Density (kg/m³) CJ/T114-4.3.2 ≥60 71.1
Average pore size (mm) CJ/T114-4.3.1 ≤0.5 qualified
Percentage of close area(%) CJ/T114-4.3.1 ≥88 94
Compressive strength(MPa) CJ/T114-4.3.3 ≥0.3 0.58
Water absorption(%) CJ/T114-4.3.4 Immersion in boiling water 90 minutes, bubble water absorption should be not more than 10% ≤5.53
Working steel pipe
Seamless steel pipe(≤DN150) GB8163 20# qualified
Spiral steel pipe(≥DN200) GB/T9711 or SY/T5037 Q235B qualified
PRODUCT FEATURES
Product name Thermal insulation direct buried pipe
Length 5.8m-12m, or by customer's requirements
Nominal diameter DN25-1800
Laid way Buried
Application Fluid Pipe, Natural gas, Gas, Oil, Hydraulic, chemical, drill, etc.
Production Standard The national standard GB/T29047-2012, CJ/T114-2000, CJ/T155-2001

 
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