General description

The operation of a floor heating system is determined by the quality of the heating pipe used.

Typical for the aquatherm® PE-RT EVOH floor heating pipes are the following features:

• excellent creep strength also at higher temperatures
• smooth inner pipe surface
• low friction loss
• high heat-stabilized
• corrosion resistance
• outstanding resistance against chemicals
• high flexibility
• high impact rate
• less sound of flow
• oxygen-tight due to EVOH-coating acc. to DIN 4726

Processing

aquatherm®-heating pipes can be laid without preliminary tempering simply cold from a roll. For practical reasons, the heating pipes should generally be laid with the aquatherm®-pipe hasp.

Connection technique

Only those pipe joints indicated by the manufacturer should be used for the respective type of pipe used.

The aquatherm®-connectors and distribution union pieces conform to DIN 8076 Part 1, requested in DIN 4726.

Linear expansion

aquatherm®-floor heating pipes for wet construction systems are embedded directly into the floor slab.

A change in length resulting from a temperature difference is avoided when embedding into the heating screed.The material absorbs stress so that they are not critical.

Oxygen-tightness

Manufacturing of the aquatherm® floor heating pipes with an oxygen barrier layer is achieved according to a specially developed extrusion procedure. Due to the EVOH-coating deposited on the basic pipe as an all-over compound,the pipe reaches an optimum tightness.

The adhesive layer between basis pipe and barrier layer results in an adhesion resisting against hardest site conditions.

The oxygen-tight aquatherm®-floor heating pipes are in accordance with DIN 4726.

A system separation by means of a heat exchanger is not necessary as per DIN 4726 when using these pipes.

Heating water additions

In principle only heating water additions may be used from which the harmlessness with regard to the material polybutene (PB) has been controlled and which have been expressly released by aquatherm.

The application of corrosion inhibitors is not necessary when using aquatherm®-floor heating pipes.

Packing

aquatherm®-floor heating pipes are packed in site-adapted cardboards impervious to light for protection against mechanical damage or effects from UV-rays.

The pipe bundles have to be stored in the packing until installation.

The pipes are supplied as a ring bundle with a length of 250 m or 500 m (other supply sizes as well as short length on request). Remaining bundles have to be restored in the cardboard.

External supervision

The supervision contracts necessary in the scope of DIN-CERTCO have been concluded with the SKZ (South German Plastic Centre Würzburg).

Internal supervision

aquatherm®-floor heating pipes have their own supervision in the manufacturing works according to the requirements.

Heating pipes made of Polyethylene (PE-RT)

Heating pipes made from PE-RT

Characteristics

aquatherm®-floor heating pipes made of polyethylene (PE-RT) have an unique molecular structure with controlled side chain distribution, ensuring an excellent environment stress cracking resistance, and a very good long term internal pressure behaviour at high flexibility.

Designation

AQUATHERM FLOOR HEATING PIPE - ART.-NO. 90026 - 16 X 2,0 MM - OXYGEN-TIGHT - DIN 4721 - DIN 16833 - DATE OF MANUFACTURING/ TIME - MACHINE-NO - MTR.-MARKING - MADE IN GERMANY

Moreover, every coil is printed continuously with the length in meters. An instruction leaflet containing the identification data is added to every coil.

Surplus material

Surplus pipes can be applied with the tested and certified aquatherm-SHT-connection technique for radiator connection.

Elastic modulus

The modulus of elasticity as an important parameter of the bending resistance of the pipes is for Polyethylene (PE-RT) at 20° C about 580 N/mm2.

Consequently is the smallest admissible

bending radius 5 x d

in which d has been determined as outside diameter. For pipes with a diameter of 16 x 2 mm the bending radius will be r = 5 x 16 mm = 80 mm.