Backwall Height

Backwall heights: 1350mm - 2400mm

Single or Multiple Pipe openings

Single or multiple pipe openings

Specifiable invert levels

Specifiable pipe invert levels

Maximum pipe size

Maximum pipe size:
1800mm

Althon SP28 precast headwalls are produced with a higher wing walls at the front of the apron. SP28 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.

SP28 precast concrete headwalls are manufactured in two sections.

SP28 precast headwalls have been designed to suit plastic, clay and concrete pipework up to 1500mm. The backwall heights available range from 1350mm to 2400mm

Althon SP28 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.

SP28 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.

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