ASTM Underground Welding Tube

ASTM Underground Welding Tube

Material composition of the pipe 1.inner carrier pipe
2.middle polyurethane insulation layer
3.outer HDPE protection pipe/GI/GRP
Application 1.district heat and cold supply
2.for liquid transport
3.oil and gas transport
4.chemical and other anti-corrosion
insulation field
Medium temperature 50-120centigrade
Working pressure ≤2.5MPa
PU foam density ≥60kg/m3
HDPE pipe density ≥940kg/m3
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Product Details


Product Details

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Brief Introduction

ASTM Underground Welding Tube


Material

composition of    

the pipe

1.inner carrier pipe

2.middle polyurethane insulation layer

3.outer HDPE protection pipe/GI/GRP

Application

1.district heat and cold supply

2.for liquid transport 

3.oil and gas transport

4.chemical and other anti-corrosion

 insulation field

Medium

temperature

50-120centigrade

Working

pressure

≤2.5MPa

PU foam

density

≥60kg/m3

HDPE pipe

density

≥940kg/m3

Thermal

conductivity

0.033w/(m*k)
Standard

GB/T29047-2012,CJ/T114,

EN253,EN448,EN489

CertificationISO9001,14001,28001;CE,CNAS
Laying method

1.direct bury

2.built on stilts

3.trench

Advantage

(thermal insulation)

1.good insulation properties ,low heat loss

 (the 25% of traditional pipes),

2.energy saving 

3.waterproof  and corrosion resistance 

4.no trench, be directly buried in ground or water

concrete pipe


Self-stressing concrete pipe


Used for water pipeline with working pressure of 0.4~1 mpa.Inner diameter 100~600 mm.Adopt socket and socket joint and circular section rubber ring seal to stop water.This is a kind of reinforced concrete pipe which USES expanded cement to tensify steel bars to produce prestress.


Cast iron pipeUsed for water piping with working pressure not exceeding 1 mpa.There are three kinds of low pressure pipe (less than 0.45 mpa), general pressure pipe (0.45~0.75 mpa) and high pressure pipe (0.75~1 mpa). The pipe diameter can reach 1200 mm.There are continuous casting and sand casting (vertical and centrifugal) two kinds of tube technology.




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