14) NEW PE-RT Hot Pipes SDR 8

System: ALMATHERM PE-RT

Material: PE-RT / EVOH / PE-RT

Standard: EN ISO 22391, DIN 4726

Details: 5-layer, highly flexible polyethylene pipe PE-RT II with high heat resistance (acc. to EN ISO 22391), with an oxygen barrier of ethylene vinyl alcohol (EVOH) according to DIN 4726 Tmax 95°C.

Dimension	Unit	Large package	Small package	Weight [kg/pcs]	Volume [dm3/pcs]	Catalog number	D [mm]	s [mm]	I [mm]
8 x 1,0	m	200	cardboard	0,06	0,60	AA120008200	8	1,0	200
8 x 1,0	m	400	foil	0,06	0,60	AA120008400	8	1,0	400
10 x 1,3	m	200	cardboard	0,06	0,60	AA120010200	10	1,3	200
10 x 1,3	m	400	foil	0,06	0,60	AA120010200	10	1,3	400
12 x 1,5	m	200	cardboard	0,07	0,60	AA120012200	12	1,5	200
12 x 1,5	m	400	foil	0,07	0,60	AA120012400	12	1,5	400
14 x 1,8	m	200	cardboard	0,07	0,60	AA120014200	14	1,8	200
14 x 1,8	m	400	foil	0,07	0,60	AA120014400	14	1,8	400
15 x 1,8	m	200	cardboard	0,08	0,60	AA120015200	15	1,8	200
15 x 1,8	m	400	foil	0,08	0,60	AA120015400	15	1,8	400
16 x 2,0	m	200	cardboard	0,09	0,60	AA120016200	16	2,0	200
16 x 2,0	m	400	foil	0,60	0,60	AA120016400	16	2,0	400
17 x 2,0	m	200	cardboard	0,09	0,60	AA120017200	17	2,0	200
17 x 2,0	m	400	foil	0,09	0,60	AA120017400	17	2,0	400
18 x 2,0	m	200	cardboard	0,108	0,60	AA120018200	18	2,0	200
18 x 2,0	m	400	foil	0,108	0,60	AA120018200	18	2,0	400
20 x 2,0	m	200	cardboard	0,09	0,60	AA120020200	20	2,0	200

Demands on the Heating Pipe:

The most important component of a heating system is the heating pipe. Therefore, demands on heating pipes are made which guarantee a minimum 50-year service life with high safety reserves. The heating pipe PE-RT Type is an excellently suitable quality product for special applications. Underfloor heating at medium flow temperatures is the main field of application.

The PE-RT 5-layer pipe provides the following benefits:

* very high flexibility of the pipe even at low ambient temperatures.

* high impact strength

* high resistance to ageing

* protection against oxygen diffusion

* quality assurance through internal and external monitoring

* good resistance to stress cracking

All of these features has the ALMATHERM PE-RT heating pipe. The requirements of EN ISO 22391-2 and DIN 4726 for heating pipes are met and even surpassed.

Classification of operating conditions according to EN ISO 22391-1:

Standard PE-RT Pipes:

Raw Material:

This heating pipe is made of a high-grade polyethylene with increased resistance to temperature supplied by a renowned raw material producer. This pipe version has an excellent ageing stability.

Pipe Production:

The pipe is extruded on our state-of-the-art extrusion units with minimal tolerances. A barrier of EVOH avoids oxygen diffusion into the heating medium. The oxygen barrier effect is in accordance with DIN 4726. The outer protective layer of this special 5-layer-pipe keeps the oxygen barrier safe from mechanical influences.

Technical Properties of the ALMATHERM PE-RT pipes:

Quality assurance by internal control:

During production the PE-RT 5-layer pipe of ALMATHERM has to undergo strict controls according to the relevant product standards such as EN ISO 22391 and DIN 4726.

Among other investigations, the following tests are made:

* preprocessing control of the raw material charges

* dimensional continuity and accuracy of the pipes

* mechanical-technological tests according to standard, eg. internal pressure test

Quality assurance by external control:

The most important characteristics are constantly tested within the scope of supervision contracts. Depending on the country and the type of pipe, the pipes are supervised.

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