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Prefabricated networks

Reliable networks in record time

Connections are always the most critical components of your heating or cooling network. You now can secure maximum safety while drastically reducing installation time with our prefabricated connections, Flexalinks or Flexanet complete district heating networks on coil. Take the risk out of the field, and onto our controlled factory floor where all connections and pipes are customized and tested. Ready for a swift and secure roll out.

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Maximum reliability

Risks such as ground water, bad weather or faulty connections are major influences on the performance and life expectancy of a network. Prefabricated house connections for heating and cooling grids reduce the amount of on-site connections by at least 70% compared to traditional systems. This minimizes the number of joints so that network lifetime is maximized – securing maintenance-free comfort for current, and future users.

Fast and easy installation

Making complicated connections in the trench can be complex, risky and time consuming. With Flexanet and Flexalink prefabrication technology, a complete street can be connected to the district heating network in just 1 day. Flexible routing allows smaller trenches and less impact to the surroundings. This mitigates two key barriers in network realization: disturbance to daily life, and installation and operational risks.

Stay on budget and planning

Our specialists can help you in the network design phase to provide you tailored advice on suitable prefabrication technologies that meet your specific needs. Components can be delivered just-in-time, reducing stock at construction sites.

Your reliability, our responsibility

Our DVS certified craftsmen ensure that the production of prefabricated connections meet the highest quality expectations. Each component is pressure tested before being delivered to the project site.

Check out the Flexalen technical product guide below for more technical information or contact us for tailored advice!



  EuroHeat&Power: Optimized heating and cooling systems PDF 270 KB Preview Download Mail

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

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

  EuroHeat&Power: Innovative concept with flexible pipes PDF 435 KB Preview Download Mail

Innovative Concept with flexible pipes: 

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

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

Brochures Catalogues

  Flexalen Product Guide PDF 4736 KB Preview Download Mail

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

  FAQs Polybutene PDF 2492 KB Preview Download Mail

Here you will find answers according the frequently asked quastions about Polybutene.

  Successful in the past - prepared for the future (PBPSA) PDF 1619 KB Preview Download Mail

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.

Installation Manuals

  Flexalen instruction: Brass compression fitting 16-50 PDF 1537 KB Preview Download Mail

Installation instruction for brass compression fitting (BCA 16-50).

  Flexalen instruction: Pre-insulated T-piece PDF 1917 KB Preview Download Mail

Installation instruction for pre-insulated T-pieces equal with reduced sockets.

Technical Datasheets

  Drukverliezen PB-leidingen PDF 44 KB Preview Download Mail

Drukverliezen PB-leidingen


  Future proofing the DHC network PDF 612 KB Preview Download Mail

During the District Heating and Cooling Symposium 2010 in Tallinn Thermaflex presented 5 papers addressing the benefits of flexible pipe systems and tailored prefabricated solutions over the entire network lifetime, exemplified by the pre-insulated piping system Flexalen 600. Since that time Thermaflex achieved a global acceptance of the introduced solutions as they have been successfully implemented in numerous District Heating and Cooling network applications all over the world. This formed the basis for further developments since 2010. Production facilities have been up-scaled to meet an increasing demand and quality level. The cooperation of R&D with key stakeholders focused on responding to their challenges with new and improved solutions.


  REACH Declaration PDF 348 KB Preview Download Mail

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.

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