SP27G precast headwalls are produced with a horizontal wing walls at the front of the apron. SP27G 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. SP27G precast headwalls have been designed to suit plastic, clay or concrete pipework up to 1050mm and have a backwall height of 1650mm. SP27G precast headwalls are manufactured in 2 sections. Althon SP27E 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.

SP27 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 SP27G headwall weighs 8100kg / 4050kg 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

SP27 G Headwall line drawing
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
SP27 G Headwall
1050
1050
1650
8100

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    SP27 G Headwall + Sfa1 375 Outfall Safety Grille

    SP27 G Headwall + Sfa1 450 Outfall Safety Grille

    SP27 G Headwall + Sfa1 600 Outfall Safety Grille

    SP27 G Headwall + Sfa1 750 Outfall Safety Grille

    SP27 G Headwall + Sfa1 900 Outfall Safety Grille

    SP27 G Headwall + Cranked Grating

    SP27 G Headwall + Sloped Grating

    SP27 G Headwall + 3 Sided Kee Klamp

    SP27 G Headwall + 3 Sided Kee Klamp + Sfa1 375 Outfall Safety Grille

    SP27 G Headwall + 3 Sided Kee Klamp + Sfa1 450 Outfall Safety Grille

    SP27 G Headwall + 3 Sided Kee Klamp + Sfa1 600 Outfall Safety Grille

    SP27 G Headwall + 3 Sided Kee Klamp + Sfa1 750 Outfall Safety Grille

    SP27 G Headwall + 3 Sided Kee Klamp + Sfa1 900 Outfall Safety Grille

    SP27 G Headwall + 3 Sided Kee Klamp, Gate And Ladder

    SP27 G Headwall + 3 Sided Kee Klamp, Gate And Ladder

    SP27 G Headwall + 3 Sided Kee Klamp, Gate And Steps

    SP27 G Headwall + Backwall Kee Klamp

    SP27 G Headwall + Backwall Kee Klamp + Sfa1 375 Outfall Safety Grille

    SP27 G Headwall + Backwall Kee Klamp + Sfa1 450 Outfall Safety Grille

    SP27 G Headwall + Backwall Kee Klamp + Sfa1 600 Outfall Safety Grille

    SP27 G Headwall + Backwall Kee Klamp + Sfa1 750 Outfall Safety Grille

    SP27 G Headwall + Backwall Kee Klamp + Sfa1 900 Outfall Safety Grille

    SP27 G Headwall + Backwall Kee Klamp + Cranked Grating

    SP27 G Headwall + Backwall Kee Klamp + Sloped Grating

     

    Datasheet and Installation Instructions for SP27 G Headwall

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