The new pipe system, termed Hiline Flex, is a flexible, pre-insulated pipe system designed for use in buried heat networks. It consists of a cross-linked polyethylene (PE-Xa) service pipe which is encased within a highly-efficient bonded layer of polyurethane foam insulation, which in turn is protected by a distinctive corrugated green outer casing of LDPE. The pipes are available in dimensions ranging from 25mm up to 160mm OD in single, and, in certain dimensions, twin PE-Xa service pipe configurations. They can be delivered to site in continuous lengths on rolls (with the exception of the 160mm OD pipe), to minimise on-site jointing and speed-up installation times.
“We have invested heavily in our UK production and warehousing facilities and the launch of this new, flexible district heating pipe system underpins our commitment to the development of the heat networks that are being built in response to the fight against climate change” said Mark Whettall, CPV's managing director. “Although pre-insulated steel pipe systems still have an important role to play - particularly in the larger-scale distribution networks and arterial supplies, we're seeing many more hybrid systems being developed that use a combination of both steel and flexible PE-Xa systems for the smaller distribution networks.”
Hiline Flex has been designed in such a way that it can easily dodge unforeseen buried obstacles and it can therefore help to cut piping installation times. The low frictional resistance of the service pipe also means that smaller pipe dimensions can be employed when compared to its steel equivalent - further lowering the capital cost for district heating system owners and developers.
CPV has also recently constructed a new training centre that is enabling the company to certify engineers, installers and supervisors in the best practices for high-quality installation methods for pre-insulated heat networks, thereby ensuring that confidence can grow in the district heating sector's ability to reliably deliver low-carbon heating and hot water to consumers.
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