Download Datasheet

SP20F precast headwalls are produced with wing walls 700mm high at the front of the apron. SP20F precast headwalls are for inlets or outlets situated in locations with high or steep embankments or where the structure is required to provide protection to an accessory such as a flap valve, duck bill valve, stop logs or weir wall. SP20F precast headwalls have been designed to suit plastic, clay or concrete pipework up to 1050mm and have a backwall height of 1650mm. SP20F precast headwalls are manufactured in 2 sections. Althon SP20F precast concrete headwalls 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, ladders, guardrails and flow and depth monitoring equipment.

SP20 precast headwall units can be factory fitted with a range of accessories such as flap valves, penstocks, Kee Klamp® handrails and a selection of gratings depending on the application. The SP20F headwall weighs 6300kg / 3150kg per half.

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

SP20 F 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)
SP20 F Headwall
1050
1050
1650
6300

Filters for SP20 F Headwall Downloads. To Download CAD and PDF Files Please Register or Login

    All Available Downloads for SP20 F Headwall - Page 42 of 58

    You can select multiple files below to be added to a single zip file, your selections will be retained across different Headwalls

    Title
    PDF
    CAD
    Add to Zip File

    SP20 F Headwall + 750 x 500mm Toe + Sfa1 675 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Sfa1 750 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Sfa1 825 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Sfa1 900 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Cranked Grating

    SP20 F Headwall + 750 x 500mm Toe + Sloped Grating

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 375 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 450 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 525 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 600 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 675 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 750 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 825 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp + Sfa1 900 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Cranked Grating + 3 Sided Kee Klamp

    SP20 F Headwall + 750 x 500mm Toe + Sloped Grating + 3 Sided Kee Klamp

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 375 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 450 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 525 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 600 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 675 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 750 Outfall Safety Grille

    SP20 F Headwall + 750 x 500mm Toe + Backwall Kee Klamp + Sfa1 825 Outfall Safety Grille

     

    Brochures, Datasheets and Installation Instructions for SP20 F Headwall

    Free headwall design service

    If you cannot find what you are looking for our Free Headwall Design Service can help.

    More information