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	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

Danfoss FH Pipes

FH Composite Pipes

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.

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

1.PE-HD outer layer

2.Adhesive

3.Butt-welded aluminium

4.PE-RT inner pipe

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

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