Flexalen 600 Technical

Polybutene Carrier Pipes – The Perfect Material

Flexalen Pre-insulated pipes use Polybutene (PB-1) as the base material for their carrier pipes.

PB-1 has been commercially available and used successfully in the manufacture of pipes for over 35 years. Polybutene is the only plastic pipe system currently used in heating systems that can be fully fusion welded and operate up to 95°C! And, Polybutene fusion welded pipes have been used for almost 40 years! You can use PB pipe systems in complete confidence, with the knowledge that you are using a tried and trusted welding system.