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Underground direct buried pre insulated polyurethane thermal insulation gi jacket steel pipe for hot water

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1.The pre-insulated steel pipe coated with high density polyurethane foam can resistant the temperature up to 140°c.

2.With the corrosion resistant hdpe jacket pipe can make the pipe directly buried underground without trench.

3.Different size pipe and pipe fittings can service for different heating and cooling project.

4.The polyurethane foam thickness can be designed from 26.5-83mm or more.

Description insulation steel pipe
Wall Tickess 0.5mm-16mm
Length 1m-12m ,or by customer’s requirements
Production Standard API 5L PSL1/ PSL2,ASTM A53,ASTM A252,GB/T9711.1,GB/T3091,SY/T 5037-2012,DIN1626,EN10219,EN10217
End 30~35° Beveled end
Quality Control 100% X-Ray inspection
100%Hydraulic Pressure test
100% Ultrasonic inspection
Internal lining Epoxy , cement motar, and according to customers requirement
Operating pressure <1.6Mpa
Laid way Buried, overhead, trench

Grade of the steel pipe

and pipe fitting

20#/Q235 Seamless steel pipe and spiral steel pipe (GB and oil standard)
Insulation material

Fluoride-Free water foamed rigid polyurethane foam material

(foam density: 60kg/m3-80kg/m3

Inner surface tension of the

high density polyethylene pipe

≥50dy/cm



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