Althon RSFA20B 10 3690 Right Hand Angled Rectangular Precast Headwalls are Sewers for Adoption compliant precast concrete headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. RSFA precast headwalls come with the option of two thicknesses of toe, 300mm and 500mm, each of which is available in three depths. Althon manufacture RSFA20B 10 3690 Right Hand precast headwalls have a 1 : 3 wingwall profile and a backwall height of 1300mm. The headwall is 3690mm from the backwall to the end of the spillway and are manufactured in two sections. RSFA20B 10 3690 Right Hand Angled precast concrete headwalls are typically supplied complete with Kee Klamp® Handrail to the back wall and horizontal sections of the wing walls, a galvanised steel access ladder and a self-closing gate with padlock facility above. RSFA20B 10 3690 Right Hand precast headwalls have angled spillways typically for when pipework is discharging into a river.
The backwall of the headwall can accommodate a correctly sized Sewers for Adoption compliant hinged outfall safety grille. Althon RSFA20B 10 precast headwalls are manufactured in accordance with Severn Trent Water Standard detail STD6002 for pipework up to 600mm. All RSFA Headwalls are cast with the opening in the back wall to suit the size and type of pipe being used at the invert level required. The RSFA20B 10 Right Hand 3690 headwall weighs 6080kg.
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