Monthly Archives June 2017

Pre-insulated pipe – Jointing Costs of Steel vs Polymer

Underground pre-insulated pipes are used in district heating schemes to connect the various buildings on the site to a centralised heat source. The pre-insulated pipes are designed to maintain the water temperature when in transit (avoiding heat losses to improve energy efficiency). When planning a district heating project the designer will often have a choice between specifying steel or polymer pipes such as cross linked polyethylene (PEXa). Historically district heating schemes in the UK have used steel pipework to meet the high operational temperatures that are needed to compensate for their heat losses over large distances. Plastic pipes are now
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