R10C
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R10C Headwall Range Up to 750mm Pipework 1025mm - 1275mm Backwall Height 300 and 500mm Thick Toe The R10C can acommodate twinwall, uPVC or clay pipes up to 750mm ID. or concrete pipes up to 675mm ID. Openings in our rectangular concrete headwalls are cast to suit the pipe material and diameter being used on site. We can also cast the opening to a specified invert level if required. Our rectangular precast headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, Kee Klamp® handrails as well as trash screens and outfall safety grilles. Rectangular headwalls have the wingwalls projecting at 90 degrees to the backwall. We offer a range of different wingwall profiles with our rectangular headwalls to suit the bank profile on your project. We offer toe extensions for our rectangular precast headwalls either 300 or 500mm thick and up to 1000mm deep. Max Pipe Opening Approx Weight Optional Kee Klamp Handrail Weight with 500mm Weight with 300mm thick thick toe Optional Kee Klamp handrailtoe kg Maximum pipe size 750mm Specifiable pipe invert levels Single or multiple pipe openings Optional pre-fitted grating Optional pre-fitted flap valve Optional pre-fitted penstock

Back fill with as dug material in 150mm compacted layers Installation Guidelines Earthworks adjusted locally to match headwall slope 50mm sand binding layer Min 150mm well compacted selected, uniformly graded granular fill Geotextile Ensure that first or last spigot/butt or socket/butt pipe that is to be fitted to the Headwall is in position and free from backfill. Dig out the bank of the watercourse to take the size of the headwall making sure that the Headwall will not protrude into the path of the water flow. The angle of the excavation to the rear of the Headwall should be roughly the...

Rapid-Lift Lifting Anchors All Althon SFA Headwalls and Toes are fitted with Rapid-Lift lifting anchors. The Althon Rapid-Lift system allows the SFA Headwalls & Toes to be offloaded, transported and located in their final position without the need for any specialised lifting equipment. Standard lifting hooks and chains can be used with the three lifting points (two lifting points on Toes). The minimum chain leg length for all units is 1500mm. Althon Precast Concrete SFA Headwall Safety Sheet Althon Limited manufacture pre-cast concrete SFA Headwalls using :-6 - 14mm aggregate . 0/4mm Sharp...