Pioneering Polymer Pipe Hits Milestone

CPV Ltd, a leading UK manufacturer of pre-insulated pipe systems, is celebrating the 15-year anniversary since the launch of its innovative Hiline Aqua pre-insulated polymer pipe system for district heating projects.

The Hampshire-based pipe specialist has been at the forefront in thermoplastic extrusion since its inception in the late 1940s and it was the first UK manufacturer of pre-insulated pipe systems in the late 1970s and 80s.

The Hiline Aqua system was developed as a viable corrosion-free alternative to the traditional pre-insulated steel pipes that, if not correctly installed and maintained, could experience reliability issues. By introducing a polypropylene random copolymer (PP-R) service pipe that is mechanically strengthened with fibres, it can operate continuously at temperatures up to 90°C making it ideal for heat networks.

Manufactured in the UK, the system is available from stock in dimensions from 32mm up to 250mm and it can be used on its own, or as a hybrid system that utilises other pre-insulated pipes such as flexible polymers for quick and easy installation of branch connections.

The system’s service pipe can be quickly joined on site using butt, socket or electro-fusion welding methods, with the system’s tough HDPE outer casing and bonded PUR insulation being bridged with a choice of an easy-to-fit heat-shrink or electro-fusion casing joints.Hiline Aqua butt fusion 600x400

Andrew Leach, business development director, commented: “We’ve been supplying this Hiline Aqua system for fifteen years now and during this time, we’ve seen a steady shift towards polymer systems. As a result, we’re continuing with our company’s tradition of innovation by heavily investing in research and development to create exciting new polymer systems that will further expand the performance specification and reliability the Hiline range.”

“With all eyes on district heating as a technology that can help the UK deliver its legally-binding greenhouse gas emission targets, it’s imperative that these new systems are reliable. By eliminating corrosion risk, district heating network owners and operators can commit to long-term contracts safe in the knowledge that their customer supply won’t be disrupted.

“We’ll shortly be launching a new flexible polymer pipe system that will offer even higher temperatures and pressures with improved safety factors that will give further peace of mind for both system operators and their consumers.”

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