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Factory Fabricated Insulated cross tee weld OEM Specialised Pipe And Fittings
Cross tee,insulated specialisted pipe and fittings; factory fabricated specialised pipe and fittings;OEM specialised pipe and fittings
Advantage and characteristics: 1.project cost can be reduced by 25%. 2.reduce heat loss, energy saving, heat preservation effect increased by 4 ~ 9 times and the water absorption rate is very low, about 0.2kg / m2. 3.anti-corrosion, good insulation performance, long service life: raw material HDPE, with high mechanical strength and good corrosion resistance,effectively prevent the infiltration of water and oil, service life is up to 50 years, three or four times more than the traditional outer protection tube.
Main Indexs of Pre-insulated Pipe
Product Name
Product Indexes
Reference Standard
Unit
Standard Requirement
Finished product
Steel pipe without thermal insulation layer
CJ/T114-4.4.1
mm
150-250
Increasing rate of HDPE outer protection pipe
CJ/T114-4.4.2
%
≤ 2
Axis eccentricity
CJ/T114-4.4.3
mm
see clause 4.4.3
Expectation of life
CJ/T114-4.4.4.1
year
120℃ 30 years
Shear strength(170℃,1450h after aging)
CJ/T114-4.4.4.2
MPa
(23±2℃)>0.12
(140±2℃) >0.08
Shock resistance
CJ/T114-4.4.5
3kg/2m
see clause 4.4.5
Resistance value between alarm line
CJ/T114-4.4.6
MΩ
more than 20MΩ
Outer protection pipe
Density
CJ/T114-4.2.3.1
kg/m3
≥940
Elongation at break
CJ/T114-4.2.3.4
%
≥350
Tensile yield stength
CJ/T114-4.2.3.4
MPa
≥19
Longitudinal shrinkage rate
CJ/T114-4.2.3.5
%
≤3
Long term Mechanical properties
CJ/T114-4.2.3.6
80℃ 4.0MPa
>1500h free from damage
The difference of the melt flow rate
CJ/T114-4.2.3.2
g/10min
≤0.5
Carbon Black content
CJ/T114-4.2.3.1
%
2.5±0.5
Polyurethane insulation layer
Density
CJ/T114-4.3.2
kg/m3
≥60
Average pore size
CJ/T114-4.3.1
mm
≤0.5
Percentage of close area
CJ/T114-4.3.1
%
≥88
Compressive strength
CJ/T114-4.3.3
MPa
≥0.3
Water absorption
CJ/T114-4.3.4
%
Immersion in boiling water 90 minutes, bubble water absorption should be not more than 10%
An International Steel Pipe fittings supplier Since 2019
Hebei paris International Trading Co;LTD is an International steel pipe fittings supplier since 2019 working worldwide.
We provide vigorous performance; an imaginative approach and modern technology;which are principles of our company's ... An International Steel Pipe fittings supplier Since 2019
Hebei paris International Trading Co;LTD is an International steel pipe fittings supplier since 2019 working worldwide.
We provide vigorous performance; an imaginative approach and modern technology;which are principles of our company's ...