Danfoss Pipes for Hydronic Floor Heating Compendium
MAKING MODERN LIVING POSSIBLE
Handbook
Danfoss Pipes for Hydronic Floor Heating
The English language is used for the original instructions.
Other languages are a translation of the original instructions.
(Directive 2006/42/EC)
© 2012 Copyright Danfoss A/S
Handbook Danfoss Pipes for Hydronic Floor Heating
Table of Contents
Danfoss FH Pipes
1 Danfoss FH Pipes .......................................... 3
2 FH Composite Pipes ........................................ 3
3 Pressure Loss for FH Composite Pipes ............................ 4
4 FH PE-RT Pipes ............................................ 4
5 Pressure Loss for FH PE-RT Pipes ............................... 5
6 Pipe Bending ............................................. 5
7 Minimum Bending Radius with Bending Springs .................... 5
8 Precautions .............................................. 6
9 Connections ............................................. 6
10 Product Range ............................................ 7
The Danfoss FH pipes are high quality pipes for
under floor heating applications.
All Danfoss FH pipes are manufactured from the
highest quality PE-RT (Polyethylene Raised Temperature resistance) which is a recyclable material
with similar characteristics to those of PE-Xa
pipes.
The PE-RT material gains it’s strength from the
octen side chain molecules which makes additional cross linking redundant. Even without
cross linking the Danfoss FH pipes hava a lifespan
of more than 50 years. All the layers are permanently bonded together with a high quality
bonding adhesive.
1. PE-HD outer layer
2. Adhesive
3. Butt-welded aluminium
4. PE-RT inner pipe
FH Composite Pipes
The Danfoss Composite pipe consists of 5 layers,
the outer layer is made from PE-HD, the core
from aluminium and the inner pipe from PE-RT.
This combination gives the pipe a strong and
protective outer layer making the pipe resistant
for use on building site conditions. The Aluminium core makes installation easier by helping the
pipe stay in the bent shape without springing
back. The PE-RT inner pipe has a smooth surface
which minimizes pressure loss allowing for long
circuit lengths, and at the same time minimize
the murmur in the installation.
No Corrosion
The FH Composite pipe is a 100% oxygen tight
thanks to the continuously butt-welded aluminium core. Oxygen tightness is a must to keep the
installation free from corrosion which ensures a
long life time for the system.
The FH composite pipe exceeds the demand for
oxygen barrier according to DIN 4726
No noise
The aluminium core ensure that the thermal expansion of the pipe is only 1/7 to that of a full
plastic pipe, this helps to prevent noise problems
in the floor construction.
In shape
The Danfoss composite pipe is manufactured in
such a way that the aluminium layer prevents the
pipe from going back to its original form. This
makes it easy to install.
Quality inside
The PE-RT resin is typically available in different
qualities and to ensure that the quality of the
pipe we only use the highest quality of materials.
Danfoss Heating Solutions VGDXA402 © Danfoss 12/2012 3
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