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Protectube

Insulated protection pipe

The universal, robust and flexible Protectube insulation channel is suitable for various combinations of pipes, tubes and cables. Protectube insulates and protects.

ProtecTube insulated protective pipe
Flexalen ProtecTube insulated pipe

For a wide range of applications

Protectube is made of extruded polyolefin foam surrounded by a bonded, corrugated and very robust HDPE casing pipe. The insulation offers excellent thermal performance and protects against moisture, frost and mechanical stress.

Thanks to its low weight and flexibility, Protectube can be quickly and easily installed under river crossings, railways or buildings, and can thus be used for supply lines for heat pumps or split air conditioning. The product offers unlimited possibilities.

Due to its light weight and flexibility, Protectube is suitable for a wide range of applications, both underground and above ground and inside and outside buildings.

Protectube protects and insulates cables and pipes for:

  • Hot water
  • Cold water
  • Other liquids
  • Electrical applications
  • Industrial applications

Applications Protectube

Heating networks
Cooling networks
Hot & cold drinking water
Heatpumps
Biomass
Geothermal

Certifications and standards

The materials used are fully recyclable and Cradle to Cradle Certified.

reach logo
REACH
cradle 2ccradle silver Thermaflex
Cradle-to-Cradle Silver
100 recyclable Thermaflex insulation
100% recyclable

Products

Protectube is available in diameters of 90 mm, 125 mm, 160 mm and 200 mm. Replacing the service lines in the insulation tube is easy.

ProtecTube insulated protective pipe

ProtecTube

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News

October 23, 2025 in Insulation, ThermaSmart Marine, Training

Skill, Knowledge, and Partnership in Action – Marine Insulation Training

On the 30th September and 1st October 2025, we had a pleasure of welcoming four talented installers from the BlueStone Group to our headquarters in Waalwijk, for an intensive, hands-on…
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October 23, 2025 in Insulation, ThermaSmart Marine, Training

First Training on ThermaSmart Marine® 4.0 Successfully Completed Aboard Nieuw Statendam

The 6th – 11th August marked an exciting milestone: the very first insulation training on our updated ThermaSmart Marine® 4.0 was held on board Holland America Line’s Nieuw Statendam. During…
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