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Large precast concrete headwalls
Althon large precast headwalls are suitable for pipe sizes ranging from 750 to 1200mm concrete or plastic pipework. Headwall openings are cast to suit the outside diameter of the connecting pipework. Large headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, gratings and handrails: h20C (two piece) headwalls
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Althon large precast concrete headwalls
Products
SFA headwalls
Material
Concrete
Accessories
Extended toes
Fitted flap valves
Fitted railings
Gratings
SFA safety grilles
Number of segments
One piece
Two piece
For use on
Culverts
River outfalls
Sewers
Swales
Conforms to
Sewers for Adoption (SFA)
Backwall height (mm)
Up to 1650mm
Max. pipe diameter (mm)
1200
Althon large precast headwalls are suitable for pipe sizes ranging from 750 to 1200mm concrete or plastic pipework.
Headwall openings are cast to suit the outside diameter of the connecting pipework. Large headwalls can be factory fitted with a range of accessories such as flap valves, penstocks, gratings and handrails.
Large headwall range
H20C (two piece) headwalls
SP20 (splayed wing wall) headwalls
SFA sewers for adoption complaint precast headwalls
Key features
Suitable for pipe diameter from 750 to 1200mm
Backwall heights 1650 - 2000mm
SFA Headwalls are SSG and Sewers for Adoption compliant
H20C Headwalls available with 3 different wingwall profiles
SP20 headwalls produced with a higher wingwall at the front of the apron
