Our SFA headwall range is 8 years old!

The Sewers for Adoption headwall range was launched 8 years ago and is still one of our bestselling ranges of precast concrete headwalls.
The headwalls are compliant with Sewerage Sector Guidance and should be used as part of a section 104 agreement when the sewers are to be adopted once completed by the local water company. These headwalls can fit up to and including a 1800mm ID pipe, for more information on the different sizes of headwalls please visit our website,  call our sales team on 01603 488700 or email sales@althon.co.uk

Headwalls in attenuation ponds

Balancing ponds or attenuation ponds are a vital flood prevention method. You will often see these attenuation ponds complete with headwalls, on new construction projects such as housing estates, new roadways etc. The purpose of them is during heavy or prolonged wet weather the drainage system on new construction projects can be overwhelmed due to the sheer amount of excess water being discharged. The attenuation pond is designed to control the amount of excess water entering the drainage system to reduce the likelihood of flooding.

The headwalls in the photos we have factory fitted one with a close coupled grating and the other with a penstock which can control and isolate water, cranked grating over the valve and 3 sided kee klamp for fall protection.

For more information on our precast concrete headwalls please visit the headwalls section of our website, call our sales team on 01603 488700 or email sales@althon.co.uk

Extra Large SFA Headwall 

A recently cast SFA headwall with extension pieces added to make it wider. This headwall is made to suit 2 x 1800mm concrete pipes and is currently being factory fitted with an SFA hinged and lockable outfall grating. It also has a separate toe beam and Kee Klamp handrail will be factory fitted before it arrives on site.

For more information on our precast concrete headwalls please visit the headwalls section of our website, call our sales team on 01603 488700 or email sales@althon.co.uk 

Cladding precast concrete headwalls

We have recently supplied several splayed and rectangular precast concrete headwalls with dovetail slots, flap valves and gratings for a project in Horsham. When a client wishes to clad our precast concrete headwalls and they also require factory fitted accessories we simply still predrill the headwalls with the fixing points and then supply site with longer fixings making installation much safer and faster. 

All the headwalls have now been installed and cladded by site and we think the finished result looks great.

For more information on our precast concrete headwalls please visit the headwalls section of our website, call our sales team on 01603 488700 or email sales@althon.co.uk 

Level Invert on Headwalls

The photo above is one of our smaller RSFA headwalls (RSFA18B 01 1150) showing a great example of when a customer requires the pipe ID at level invert. We cast in a slightly larger opening than the OD of the pipe to make installation easier on site, once the pipe is in the correct position site will fill the void around the pipe with high strength non shrink grout. The SFA1 Outfall Safety Grille is fitted to the headwall 150mm up from the spillway as standard when the pipe ID is level with the spillway.

For more information on our precast concrete headwalls please visit the headwalls section of our website, call our sales team on 01603 488700 or email sales@althon.co.uk