The Delta Excel High Expansion Foam Generator is powered by a water turbine and capable of producing very large volumes of hi-ex foam very quickly and extremely efficiently.The Excel has its own built in foam induction system and simply requires a pressurised water supply and synthetic foam concentrate to operate. An additional feature is the water by-pass system which permits control of the expansion rate allowing performance to be maintained at high back pressures. The Excel is capable of ducting foam to a height of 15 metres.Manufactured in the UK, the Excel Foam Generator is available with either Hi-Viz Yellow or International Orange glass fibre reinforced case, corrosion resistant pipework, gunmetal turbine and nylon foam net. Each unit is supplied with 30m of expandable polythene for effective foam ducting. A dual purpose model is available with the additional capability of extracting smoke at 285m³/minute via a 7.5 metre length of smoke extraction ducting. Optional carbon steel or stainless steel polyester powder-coated nets are available.