RSFA11A 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 RSFA11A rectangular precast headwalls have sloped wingwalls and are suitable for use with plastic or clay pipework up to 225mm.

Althon RSFA11A precast headwall units can be pre-fitted with a range of accessories such as flap valves, penstocks, Kee Klamp® handrails and a selection of gratings depending on the application.

Our RSFA11A precast headwalls are manufactured in accordance with Severn Trent Water Standard detail STD6002

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 RSFA11A headwall weighs 1120kg

RSFA11A Rectangular Headwall line drawing
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
RSFA11A Rectangular Headwall
225
225
775
1120

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    RSFA11A Rectangular Headwall

    RSFA11A Rectangular Headwall + Closed Coupled Grating

    RSFA11A Rectangular Headwall + Cranked Grating

    RSFA11A Rectangular Headwall + Sloped Grating

    RSFA11A Rectangular Headwall + 3 Sided Kee Klamp

    RSFA11A Rectangular Headwall + 3 Sided Kee Klamp + Closed Coupled Grating

    RSFA11A Rectangular Headwall + 3 Sided Kee Klamp + Cranked Grating

    RSFA11A Rectangular Headwall + 3 Sided Kee Klamp + Sloped Grating

    RSFA11A Rectangular Headwall + Backwall Kee Klamp

    RSFA11A Rectangular Headwall + Backwall Kee Klamp + Closed Coupled Grating

    RSFA11A Rectangular Headwall + Backwall Kee Klamp + Cranked Grating

    RSFA11A Rectangular Headwall + Backwall Kee Klamp + Sloped Grating

    RSFA11A Rectangular Headwall + Halfway Kee Klamp

    RSFA11A Rectangular Headwall + Halfway Kee Klamp + Closed Coupled Grating

    RSFA11A Rectangular Headwall + Halfway Kee Klamp + Cranked Grating

    RSFA11A Rectangular Headwall + Halfway Kee Klamp + Sloped Grating

    RSFA11A Rectangular Headwall + 100mm Flap Valve

    RSFA11A Rectangular Headwall + 100mm Flap Valve + 3 Sided Kee Klamp

    RSFA11A Rectangular Headwall + 100mm Flap Valve + Backwall Kee Klamp

    RSFA11A Rectangular Headwall + 100mm Flap Valve + Halfway Kee Klamp

    RSFA11A Rectangular Headwall + 150mm Flap Valve

    RSFA11A Rectangular Headwall + 150mm Flap Valve + 3 Sided Kee Klamp

    RSFA11A Rectangular Headwall + 150mm Flap Valve + Backwall Kee Klamp

    RSFA11A Rectangular Headwall + 150mm Flap Valve + Halfway Kee Klamp

    RSFA11A Rectangular Headwall + 200mm Flap Valve

    Datasheet and Installation Instructions for RSFA11A Rectangular Headwall

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