Pre-insulated Pipes

Pressure drop PB-pipes

New economic connection solution for flexible piping: optimized heating and cooling systems for low energy housing developments. 

(EuroHeat&Power Magazine, English Edition, Feb. 2013)

Innovative Concept with flexible pipes: 

New Record: 1,5 hours for ten house connections.

(EuroHeat&Power Magazine, English Edition, Nov. 2014)

The Flexalen Product Guide offers all system, application & technical specifications for all Flexalen product ranges.

This brochure is giving an introduction to Polybutene including a review of the performance of Polybutene pressure piping systems in meeting the needs of sustainable building regulations.

Why is Flexalen the No1 choice for specifiers around the world?

Laying instruction for Flexalen 600, Flexalen 1000+, Straight lenghts and Flexalen Solar.

Pressure testing and pressure test protocol.

Drukverliezen PB-leidingen

Safety data sheet: Flexalen corrugated tubes (outer casing).

Material safety data sheet: Flexalen foam

Material safety data sheet: Polybutene-1 (PB grey)

Acoustic properties Polybutene.

Creep resistance Polybutene.

Dimensions plumbing pipes

Expansion compensation.

Fire behaviour of Polybutene.

Flexural Elastic Modulus of Polybutene.

Insulation value - heat conductivity of Polybutene.

Heat conductivity comparision Polybutene to other plastics.

Oxygen permeation resistance

Temperature - pressure - resistance of Polybutene.

Thermal expansion.

Water hammer resistance.

Wet abrasion resistance.

We fully commit ourselves to the protection of human health and environment. We take that responsibility seriously, so that also goes for the materials that we use in our production. All Thermaflex components are REACH compliant: risk-free and safe to use under any conditions in conformity with the Registration, Evaluation, Authorisation and Restriction of Chemicals by EU regulation.

KIWA International Conformity EN15632 part1 and 3 - Flexalen 600.

(May 2011).

KIWA - KOMO technical approval-with-product certificate for Flexalen 600. 

(January 2007).

Determination of the resistance to internal pressure at a constant temperature according to BRL K17401 - PB pipes grey

Determination of influence of heating at 110 degrees according to DVGW W544  - PB pipes

This process certificate is issued by KIWA on the basis of BRL 5609 'pre-insulated flexible plastics piping systems for warm water distribution outside buildings'

Together with KIWA the welding process of electrofusion, polyfusion and butt welding is technical approved with product certificate stated requirements.

KTW organoleptic test certificate for drinking water purposes - Flexalen, PB pipes - Size group 1 and 2

Certification nr. DW-8326CP0310 75 - 160mm

Certification nr. DW-8321CM0089 10 - 63mm

Product certificate for PB pipes.

(August 2005).

KWR Biofilm cultivation test certificate - PB pipes

Temperature cycling test certificate according to EN 12293 - Flexalen

Determination of influence of heating at 110 degrees according to DVGW W544