SFA27 C precast concrete headwalls are designed to comply with Sewers for Adoption guidelines for pipework discharging into open watercourses for plastic or clay pipework up to 1500mm and concrete pipework up to 1350mm. SFA27 C concrete headwalls have a backwall height of 2000mm and are manufactured in 2 pieces. We cast the opening in the back wall of our precast headwalls to suit the pipe diameter and material of the pipe being used. We can cast multiple pipe openings, elliptical, square or rectangular culvert openings into any of our precast concrete headwalls. We can also cast pipe openings into the wing walls of our headwalls. We can factory fit all our precast SFA headwalls with Kee Klamp® handrails, Sewers for Adoption specification gratings, flap valves, penstocks and other flow control devices.

All Althon Sewers for Adoption precast headwalls are available with either 300 or 500mm thick toe extensions. If you cannot find the drawing or information you are looking for please contact us. The SFA27 C headwall weighs 8140kg / 4070kg per half.

SFA27 C Headwall line drawing
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
SFA27 C Headwall
1500
1350
2000
8140

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    SFA27 C Headwall

    SFA27 C Headwall + Sfa1 375 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 450 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 525 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 600 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 675 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 750 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 900 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 1050 Outfall Safety Grille

    SFA27 C Headwall + Sfa1 1200 Outfall Safety Grille

    SFA27 C Headwall + Cranked Grating

    SFA27 C Headwall + Sloped Grating

    SFA27 C Headwall + 3 Sided Kee Klamp

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 375 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 450 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 525 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 600 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 675 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 750 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 900 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 1050 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Sfa1 1200 Outfall Safety Grille

    SFA27 C Headwall + 3 Sided Kee Klamp + Cranked Grating

    SFA27 C Headwall + 3 Sided Kee Klamp + Sloped Grating

    SFA27 C Headwall + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

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