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The collector pipe is normally installed horizontally without slope at high level and runs to a convenient point where it drops to ground level with a transition break connection into the below-ground gravity drainage system or manhole chamber.
WHESLE HDPE high density polyethylene pipes are manufactured in China to CJ_T_250-2007 (req. BS EN 1519-1:2000).
Fully welded to withstand high negative pressures, they offer excellent performance and durability with high weather and corrosion resistance.
With a wide range of diameters and fittings for maximum design flexibility, they are lightweight with electro-weld joints for rapid and simple installation.
Essential to the success and performance of a siphonic system, correct installation is ensured by the system design software and prefabrication of specified pipework.
In addition, installation is facilitated by the prefabricated WHESLE Rail System, which supports pipes, enabling them to be hung from roof voids, and restrains pipe expansion. All rails, fixings, connections and brackets are included for rapid and speedy installation.