Download Geberit HDPE installation Guide

1 System
67930 © 09-2014
Noise
HDPE is a soft material with a low Young’s modulus. HDPE limits solid-borne conduction,
but airborne noise should be insulated. This can be done by means of a duct or lagging.
Chemical resistance
Because of its structure, Geberit HDPE is highly resistant to chemicals. Its resistance can
be summarized briefly as follows: Geberit HDPE is insoluble in all solutions at 20 °C. Geberit
HDPE is only soluble in aliphatic and aromatic carbons and their chlorinating products at
over 90 °C. The material will be attacked by heavily oxidized media (conc. HN03,
conc. H2 S04) when exposed over long periods at room temperature.
Tightness
Many years of experience with welding HDPE pipes have shown, the butt and electrofusion
welds form a watertight bond that is stronger than the pipe. When installed correctly the
joint will remain watertight for the life of the building.
Protection against blockages
HDPE’s low surface tension and hydrophobic properties are highly beneficial in preventing
blockages commonly caused by solid deposits and low flow of water.
Welding temperature
HDPE require a low energy input to produce when compared to many other materials. The
welding temperature for HDPE is approximately 230 °C, making welding easier and more
reliable than some other joining methods.
Non-toxic
Plastics are well suited for use in the food industry as packaging material, containers,
bottles etc. Geberit HDPE pipes are widely used in the food service and packaging industry.
Painting
HDPE is not suitable for painting. Its water repellent properties and the flexibility of the
material limits the adhesive properties of the paint. If painting is unavoidable, the paint
product to be used should be tested for compatibility with the HDPE.
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