Metal-plastic pipe PERT-Al-PE

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Overview

The first inner layer is made of heat-resistant PERT polyethylene.
The second layer is a high-quality adhesive composition, which has good adhesion to both polyethylene and aluminum, and ensures a reliable connection of all layers.
The third layer is aluminum foil, which prevents oxygen diffusion and provides strength and low linear thermal expansion of the pipe. The edges of the foil are butt-welded to each other by TIG welding.
The fourth layer is a high-quality adhesive composition that has good adhesion to both polyethylene and aluminum, and ensures a reliable connection of all layers.
The fifth outer layer is made of heat-resistant PERT polyethylene.
The material PERT (Polyethylene of Raised Temperature resistance) is a heat-resistant polyethylene. This material is obtained by replacing "flat" butene in a chemical reaction with octene, which has a spatially branched structure. Subsequently, it forms side branches near the main chain, which are intertwined monomer chains.

Thanks to this structure, PERT acquires properties such as increased long-term heat resistance and increased strength, but retains the flexibility inherent in conventional polyethylene.
The advantages of metal-plastic pipes are high strength and heat resistance, resistance to corrosion, overgrowth, silting and salt deposition; high chemical resistance, resistance to mechanical damage, low roughness, gas tightness, high noise absorption capacity, low thermal conductivity, low coefficient of linear expansion, high ductility and light weight, technological and economical installation.

A distinctive feature of PERT pipes is the possibility of installation by welding.

Compliance with the passport operating conditions guarantees a 50-year service life of the products.

Model overview

Those. information

Metal-plastic pipe PERT-Al-PERT (1,2,4,5 service classes)
vendor code	Name	Color
PERT 5A1620W	Trumpet Pert-Al-Pert 16,0 х 2,0 Palanzh	White
PERT 5A2020W	Trumpet Pert-Al-Pert 20,0 х 2,0 Palanzh	White
PERT 5A2525W	Trumpet Pert-Al-Pert 25,0 х 2,5 Palanzh	White
PERT 5A3230W	Trumpet Pert-Al-Pert 32,0 х 3,0 Palanzh	White

Geometric characteristics of PERT-Al-PERT pipes

	16×2,0	20×2,0	25х2,5	32×3,0
Outside diameter, mm	16	20	25	32
Wall thickness, mm	2	2	3	3
Inner diameter, mm	12	16	20	26
Aluminum thickness, mm	0,25	0,3	0,3	0,3
Weight 1 r.m. pipes, g	107	137	205	307
Internal volume 1 r.m. pipes, l	0,113	0,201	0,314	0,531
Pipe length in a coil, m	200	200	100	50
Minimum bending radius, mm	80	100	125	160

Technical characteristics of PERT-Al-PERT pipes

Service class according to GOST R 53630	1,2,4,5, ХВ
Maximum working pressure, bar	10
Working temperature Т_work, °С	80
Maximum working temperature Т_max, °С	90
Short-term (emergency) temperature Т_emer, °С	100
Thermal conductivity coefficient, W / m ∙ K	0,43
Linear expansion coefficient, mm / m ∙ K	0,025
Equivalent roughness coefficient, mm	0,007
Oxygen diffusion, mg / l	0
Adhesive bond strength, n / cm	80
Service life subject to the passport operating conditions, years	50

Pipe packing specifications PERT-Al-PERT

	16×2,0	20×2,0	25х2,5	32×3,0
Pipe length in a coil, m	200	200	100	50
Coil dimensions (LxWxH), mm	700 х 700 х 220	700 х 700 х 220	770 х 770 х 240	770 х 770 х 300
Coil weight, kg	21,4	27,4	20,5	15,4
Bay volume, m³	0,085	0,102	0,112	0,14
Number of coils on a pallet, pcs.	14	14	14	10