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Flexalen Compact

Quick & easy connections for temporary solutions
Flexalen Compact
Flexalen Compact
Flexalen Compact

Flexalen Compact has been developed as a basic, yet effective single pre-insulated pipe solution for temporary, low-capacity heating, cooling and potable water supply. This extension of our Flexalen 600 range offers an assortment of smaller diameters, but with the same distinguished features and benefits.

Quick and easy with Flexalen Compact

Flexalen Compact is ideal for temporary provisions at construction sites, events, for connections between buildings, or heat pump ducts. This range covers the most common diameters and insulation thicknesses for small-scale applications to realize a flexible, quick and cost-friendly solution.

Variable size, invariable benefits

Just like the rest of our Flexalen range, Flexalen Compact is made up of a polybutylene medium pipe, high-quality polyethylene foam and a HDPE outer sheath. This assortment is equally Cradle to Cradle Certified Silver™ and has KIWA / KOMO approved quality standards.


The standard Flexalen Compact sets are available in lengths of 12½, 25 and 50 meters, with or without oxygen barrier on the PB-1 pipe. We also provide any other lengths upon request.

  • Sustainability

    Satisfies the requirements for sustainable construction

    Cradle to Cradle certified – for a circular economy!

    Download the certificate in the knowledge center!

  • Health

    Produced without (H)CFC
    Complies to REACH
    Complies to VOC (Volatile organic components)

  • Specificities

    Available as a complete set (incl. 4 fittings)

    Individual lengths available

    Easy transport allowed by light weight and compact coil diameters

    Wide range of applications

    Air/water heat pumps


    Swimming pools

    Garden showers

    Indoor applications

  • Service temperature

    Wide temperature range

    Minimum -15°C

    Maximum 95°C

  • Pressure rating




  • Additional information

    For more details contact Thermaflex or download the technical datasheet!

  • Availabilities

    Available with or without oxygen barrier

    Pipe diameters medium pipe OD16 – OD50

    Pipes in fixed coils of 12,5 and 25m (other length on request)

Discover the benefits of Flexalen Compact for engineers here

… or download the Flexalen Product Guide for technical details in the download section.

Discover the benefits of Flexalen Compact for installers here

… or download the Flexalen Product Guide for technical details in the download section.


  Pressure drop PB-pipes PDF 44 KB Preview Download Mail

Pressure drop PB-pipes

Brochures Catalogues

  Flexalen Product Guide PDF 4623 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.

  Flexalen - No1 choice for specifiers around the world PDF 817 KB Preview Download Mail

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

Installation Manuals

  Flexalen instruction: Laying instruction PDF 1936 KB Preview Download Mail

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

  Flexalen instruction: Pressure testing PDF 1599 KB Preview Download Mail

Pressure testing and pressure test protocol.

Technical Datasheets

  Pre-insulated pipe - Flexalen 600 Water PDF 240 KB Preview Download Mail

Environmental Certifications

  Cradle to Cradle - Carbon offsetting 2015-2019 PDF 195 KB Preview Download Mail

Thermaflex Isolatie B.V. has offset 290 tonnes of CO2 tooffset 50% of the emissions caused by the production of C2C products (Flexalen 600).

Thermaflex directly invests in emission reduction projects which combine energy, environment and developmental solutions into sustainable business opportunities in developing countries, with the help of the Climate Neutral Group.

  Flexalen 600 - Cradle to Cradle Silver PDF 643 KB Preview Download Mail

The Cradle to Cradle Certified Product Standard guides designers and manufacturers through a continual improvement process that looks at a product through five quality categories - material health, material reutilization, renewable energy and carbon management, water stewardship, and social fairness. A product receives an achievement level in each category - Basic, Bronze, silver, Gold or Platinum - With the lowest achievement level representing the products overall mark

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