Althon manufacture concrete headwalls with fitted orifice plates. We can supply orifice plates fitted to our headwalls in either galvanised steel or stainless steel. We factory fit the orifice plates to our precast headwalls ensuring they fit properly every time and reducing installation time on site. Factory fitting orifice plates to headwalls means the headwalls do not have to be drilled once on site.

We can fit multiple orifice plates to a single headwall if required or produce a single orifice plate with multiple apertures.

You can use our Headwall Specifier to find the headwall you require. We can then assist with pricing and design drawings for your chosen headwall with an orifice plate. 

You can also visit the Precast Headwalls section of our website or the Orifice Plates section


If you require any assistance or more information please contact us by phone on 01603 488700 or by email