Multilayer pipes R977 consist of an inner PE-RT layer

(Polyethylene with increased Temperature Resistance), an

aluminum middle layer welded lengthwise (head-head)

with laser/TIG technology and an outer white PE-RT layer.

The adhesive middle layers join the aluminum and PE-RT

layers homogeneously.

The PE-RT used for both the outer layer and the inner layer

is type II, which is of the type with superior mechanical

properties as defined in the ISO 24033, ISO 22391 and DIN

16833 standards.

The aluminum layer provides a safe barrier against oxygen

and other gases along with an outstanding resistance to

crushing.

Multilayer pipes R977 are fit for domestic water, heating and

cooling systems according to standard EN 21003.