Flexalen 600 pre-insulated pipes – first-rate material quality
The Flexalen 600 pre-insulated pipe system consists of a polybutene (PB-1) medium pipe: a flexible polyolefin material that assures quick and reliable assembly, over 50 year lifetime, while being the best in class for pressure and temperature rating, and energy efficiency.
Enclosing the pipe is a polyolefin-based polyethylene insulation that, thanks to its hydrophobic and closed cell structure, minimizes the risk of water absorption. This ensures the insulation properties of Flexalen 600 are safeguarded over its entire product lifecycle.
The protective HDPE outer casing with UV stabilizers ensures optimal protection against any risk of damage throughout the networks’ entire lifetime, while ensuring flexibility.
Flexalen 600, now the world’s only Cradle to Cradle Certified™ Silver pre-insulated pipe, was developed with the aim of offering an ideal district heating and cooling solution for both engineers, installers and end-users looking for a durable, maintenance-free and quick to install system. The first Flexalen 600 pre-insulated pipe system was already installed in 1983 in Heiligenkreuz (Austria), and has been running smoothly ever since with zero leaks or maintenance issues.
Check out this recent project in Roosendaal, the Netherlands (English subtitles available)
Flexalen 600 is available as a single pipe system (OD25 to 225mm) or a double pipe system (OD25 to 63mm). The polybutene pipe is also available with an oxygen barrier. Flexalen pre-insulated pipes are delivered in coil up to 300m (depending on diameter). Lengths can be customized upon request.
We also offer services to optimize network design and dimensioning, calculation, training, and technical assistance on site.