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N27A Headwall

SSG Compliant
Download Datasheet

N27A range of precast headwalls are suited for installation where you have steep banks or little depth from back to front for installation

Our N27A range of headwalls are manufactured to the same standards as our Sewers for Adoption headwalls and can be used on Section 104 Agreements where the sewers are to be adopted by the local water company.

N27A headwalls have been designed to suit plastic and clay pipework up to 750mm ID or concrete pipework up to 675mm ID. 

N27A precast concrete outfalls are cast to suit the diameter and type of pipe being used and can be provided with fixings cast in at the time of manufacture to accommodate gratings, trash screens, flap valves, penstocks, ladders, Kee Klamp® handrails and flow and depth monitoring equipment.

If you require any assistance or more information please contact us by phone on 01603 488700 or by email sales@althon.co.uk

N27A Headwall line drawing
N27A Headwall
As standard our headwalls have a natural concrete finish.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Our Headwall Products are available in a range of colours
Natural
Our Headwall Products are available in a range of colours
Cotswold
Our Headwall Products are available in a range of colours
Agate
Our Headwall Products are available in a range of colours
Raven Grey
Our Headwall Products are available in a range of colours
Everglade
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
Wingwall Profile
N27A Headwall
675
750
1300
3990
1:3

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    N27A Headwall + 1000 x 300mm Toe + 150mm Flap Valve + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 150mm Flap Valve + Cranked Grating + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 150mm Flap Valve + Backwall Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 150mm Flap Valve + Cranked Grating + Backwall Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 250mm Flap Valve

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    N27A Headwall + 1000 x 300mm Toe + 250mm Flap Valve + Cranked Grating

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    N27A Headwall + 1000 x 300mm Toe + 250mm Flap Valve + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 250mm Flap Valve + Cranked Grating + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 250mm Flap Valve + Backwall Kee Klamp

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    N/A

    N27A Headwall + 1000 x 300mm Toe + 250mm Flap Valve + Cranked Grating + Backwall Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 300mm Flap Valve

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    N27A Headwall + 1000 x 300mm Toe + 300mm Flap Valve + Cranked Grating

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    N27A Headwall + 1000 x 300mm Toe + 300mm Flap Valve + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 300mm Flap Valve + Cranked Grating + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 300mm Flap Valve + Backwall Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 300mm Flap Valve + Cranked Grating + Backwall Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 400mm Flap Valve

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    N27A Headwall + 1000 x 300mm Toe + 400mm Flap Valve + Cranked Grating

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    N27A Headwall + 1000 x 300mm Toe + 400mm Flap Valve + 3 Sided Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 400mm Flap Valve + Cranked Grating + 3 Sided Kee Klamp

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    N/A

    N27A Headwall + 1000 x 300mm Toe + 400mm Flap Valve + Backwall Kee Klamp

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    N/A

    N27A Headwall + 1000 x 300mm Toe + 400mm Flap Valve + Cranked Grating + Backwall Kee Klamp

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    N27A Headwall + 1000 x 300mm Toe + 500mm Flap Valve

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    N27A Headwall + 1000 x 300mm Toe + 500mm Flap Valve + Cranked Grating

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    N27A Headwall + 1000 x 300mm Toe + 500mm Flap Valve + 3 Sided Kee Klamp

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    Brochures, Datasheets and Installation Instructions for N27A Headwall

    N27 Headwall Range Datasheet

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