Gaunts Estate near Wimborne, Dorset is the site of three new district heating schemes, powered by three separate anaerobic digestion plants.
Throughout the schemes, 1600m of REHAU’s flexible, pre-insulated RAUVITHERM pipework is being installed to connect the AD plants to the various farms, dwellings and countryside buildings on the estate.
The pipework was specified by Derek Moss from Gaunts Estate who is overseeing the whole green energy installation, and was chosen as part of a supply and install package from specialist REHAU installers PES Limited of Coventry.
Derek was impressed by the responsiveness of both REHAU and PES, and by the care taken and the effort put in during the installation.
The RAUVITHERM jointing system uses REHAU’s EVERLOC™ leak-proof compression sleeve technology which has been proven over 500 million times to deliver a permanent, leak free joint in underfloor heating and plumbing applications. Fitted easily using a compression tool, it allows installers to make a joint in around half the time it would take to make a conventional joint.
The pipework itself features closed cell cross linked PE foam to provide high insulating performance and a robust LLD-PE outer jacket bonded to this which withstands demanding on-site conditions and prevents water ingress.
It is supplied in long coils up to 300m and at Gaunts Estate it has been installed in trenches between 0.5 and 1.5m deep in runs of up to 200m. The main pipe runs are in REHAU’s 63mm RAUVITHERM Duo pipework, with 50mm, 40 and 32mm pipe sizes used for the separate distribution spurs.
The scale of the AD project and the technical innovation which is on display has attracted a great deal of interest from the UK and overseas and High Lea farm on the Gaunts Estate is currently being used as a demonstration project by Green Gas.