Polybutylene (PB) Systems

Low-temperature insulated pipe systems for district heating, cooling, heat pumps and unique applications that use polybutene carrier pipes.

The pipe consists of PB carrier pipe, Polyolefin and HDPE outer casing.

Polybutylene (PB-1) Systems Products

Straight Lengths (SL)



Temperature up to 95°C and up to 16 bar Pressure

High flexibility

Reduces on-site jointing


Potable water certified

Safe and secure operation

Long lifetime expectancy

Pipe Form​

Available in long lengths on coils or straight lengths

Jointing Type​

Fully weldable ensures joint integrity

100% recyclable

Pipe Range ​

Available in twin (feed and return) or single carrier pipe

Multi-pipe variants

Cradle to Cradle Certified™



Full range of accessories, fittings, valves and factory-made fabrications for complex changes of direction and building entries

Need more detailed technical information?

Listen to our short Podcast where we discuss the merits of using polybutene as a distribution carrier pipe for district heating systems and the impact on the environment.


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Wales & West Utilities

“We appreciate the support of Flexenergy and Fowler Gas to deliver this work safely, efficiently and at a value for money price, helping us deliver for the communities we serve.”

Bethan Winter, Operations Manager
Wales & West Utilities System

Charleston Manor

“The ease of installation saved a lot of time on the project and resulted in minimal disturbance to access the property; once the pipe work was installed, it was pressure tested and back-filled within a few hours.”

Russell Haggerty, PJ Clifford Ltd