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SFA21 Z Headwall
SSG Compliant
SFA21 Z 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 1500mm. SFA21 Z concrete headwalls have a backwall height of 2400mm 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 SFA21 Z headwall weighs 7659kg / 3830kg per half
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.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Natural
Cotswold
Agate
Raven Grey
Everglade
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
Wingwall Profile
SFA21 Z Headwall
1500
1500
2400
7659
1:0.9