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seamless weld PE-AL-PE multilayer pipe for natural gas system

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ZHEJIANG LEO BUILDING MATERIAL LTD.

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1,certificates:Iso,ce
2,size:DN1216-3240
3,used for gas transportation.
4,colour:yellow

Multilayer pipe is five-layer pipe combines the advantages of metal and plastic pipe, while eliminating the disadvantages of both material.

-classified according to application: Cold water pipe, hot water /heating pipe, gas pipe.

-classified according to welding method: Overlap-welded and butt-welded.

Technical Structure

specifications and package:

Gas pipe

	HDPE/AL/HDPE
Specification	1014	1216	1418	1620	2025	2026	2632	3240
packing Specification(m/roll)	100 200	100 200	100	100	100 50	100 50	50	50

Main Characteristics
Thermal conductivity				0.45w/(m.k.)
Coefficient of heat expansion				0.025mm/(m.k)
Bend radius				≥5D(D means outside diameter)
Oxygen-permeability				0
Coefficient of heat roughness				0.0004mm
other				Static-free,longevity
Following is the condition we must go by when we use it:
Specification	Minimum	Min pipe	long-term	working temperature		working pressure
	burst pressure	ring strength	hydrostatic strength	°C
mm	(Mpa)	(N)	(Mpa)	cold pipe	hot pipe	(Mpa)
1216	7	2300	2.7	-40~60	-40~95	1.25
1418	6	2300	2.7
1620	6	2300	2.7
2025	5	2500	2.7
2632	4	2500	2.3
3240	4	3500	2.1

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