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Althon R18A 01 2940 Left Hand Angled Rectangular Precast Headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. Rectangular precast headwalls come with the option of two thicknesses of toe, 300mm and 500mm, each of which is available in three depths. 

Althon manufacture R18A 01 2940 Left Hand precast headwalls have a 1 : 1 wingwall profile and a backwall height of 1080mm. The headwall is 2940mm from the backwall to the end of the spillway

R18A 01 2940 Left Hand precast headwalls have angled spillways typically for when pipework is discharging into a river

All Rectangular 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.

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

R18A 01 2940 LH Angled Rectangular Headwall line drawing
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)
R18A 01 2940 LH Angled Rectangular Headwall
525
600
1080
4100

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    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Sfa1 375 Outfall Safety Grille

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Sfa1 450 Outfall Safety Grille

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Cranked Grating

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Sloped Grating

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp + Sfa1 375 Outfall Safety Grille

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp + Sfa1 450 Outfall Safety Grille

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp + Cranked Grating

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp + Sloped Grating

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Backwall Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Backwall Kee Klamp + Sfa1 375 Outfall Safety Grille

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Backwall Kee Klamp + Sfa1 450 Outfall Safety Grille

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Backwall Kee Klamp + Cranked Grating

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + Backwall Kee Klamp + Sloped Grating

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 100mm Flap Valve

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 100mm Flap Valve + 3 Sided Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 100mm Flap Valve + Backwall Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 150mm Flap Valve

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 150mm Flap Valve + 3 Sided Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 150mm Flap Valve + Backwall Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 250mm Flap Valve

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 250mm Flap Valve + 3 Sided Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 250mm Flap Valve + Backwall Kee Klamp

    R18A 01 2940 Left Hand Angled Rectangular Headwall + 400 x 300mm Toe + 300mm Flap Valve

     

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