Suppliers of: Headwalls, precast concrete Headwalls, SFA Headwalls, RSFA Headwalls, Angled Headwalls, rectangular Headwalls, splayed wing Headwalls, Swale Inlet Headwalls, Drainage Channels, linear drainage, slot drainage, heavy duty drainage channels
Althon Ltd manufacture and distribute specialist water management products to the construction industry.
We design and manufacture precast concrete headwalls to meet Sewers for Adoption and Severn Trent Guidelines. Our product range includes flap valves, penstocks and stop logs as well as trash screens and outfall safety grilles. Althon also manufacture precast concrete penstock chambers and offer a large range of commercial and industrial application drainage channels.
Main Products & Services:
Precast concrete headwalls offer a cost effective alternative to in-situ structures for pipework & concrete box culverts discharging into open watercourses such as rivers, ditches, ponds, swales and tidal environments. Althon have the largest range of precast concrete outfalls & spillways available in the UK, with models that meet Sewers for Adoption guidelines, a range of rectangular models conforming to Severn Trent Water specifications with an array of wingwall profiles, backwall widths and heights as well as being able to offer bespoke precast outfall and wingwall solutions.
Althon Sewers for Adoption precast headwalls should be used when part of a Section 104 Agreement and the sewers are to be adopted once completed by the local Water Company. The materials used and installation must comply with the ‘Sewers for Adoption’ guidelines. Althon precast concrete outfalls offer a cost effective alternative to in-situ structures for connecting pipework discharging into open watercourses.
The Althon headwall specifier has been designed to help you select the most appropriate headwall for your project. Once you have found the right product model for your project you can download CAD and PDF files of your headwall complete with all relevant accessories as well as brochures and datasheets.
Althon Rectangular Precast Headwalls are Sewers for Adoption compliant precast concrete headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. RSFA precast headwalls come with the option of two thicknesses of toe, 300mm and 500mm, each of which is available in three depths. Althon manufacture RSFA precast headwalls with three different wall profiles to suit the gradient of the bank as follows 1 : 1 slope, 1 : 2 slope and 1 : 3 slope. RSFA precast concrete headwalls are typically supplied complete with Kee Klamp® Handrail to the back wall and horizontal sections of the wing walls, a galvanised steel access ladder and a self-closing gate with padlock facility above.
Angled precast headwalls allow pipework entering a watercourse at an angle to be accommodated or for an outfall to be situated on a bend in a river. We cast the openings in our headwalls to suit your pipe diameter and material. We will also set the invert level of the pipe into the concrete headwall to your specification if required. We can also cast in multiple pipe openings if required.
Althon offer a large range of rectangular precast concrete headwalls for pipework discharging into ponds, swales ditches, rivers and tidal environments. Our rectangular headwalls are available in a range of backwall widths and heights for pipework up to 750mm.
Our precast headwalls for culverts offer a Cost Effective alternative to in-situ structures for connecting Pipework discharging into Open Watercourses. All Drainage pipes discharging into Open Watercourses, such as Swales, Ditches, Ponds and Rivers, should be fitted with an appropriate Althon Headwall. Althon Headwall units can be Pre-Fitted with a Range of Accessories such as Flap Valves, Penstocks, Kee Klamp Handrails and a selection of Gratings dependant on application.
Althon precast headwalls can be supplied to site with factory fitted penstocks. As standard we offer penstocks fitted to our headwalls to suit pipework from 100 up to 1500mm. When required we can offer bespoke sized penstocks or headwalls to accommodate penstocks.
Althon SP ‘Splayed Wing Wall Headwalls’ are precast headwalls produced with a higher wing walls at the front of the apron. SP 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. Althon SP precast concrete headwalls offer a cost effective alternative to in-situ structures for connecting pipework discharging into open watercourses.
Althon offer precast concrete Sewers for Adoption compliant headwalls complete with precast concrete steps. Typically our precast headwalls with steps will be supplied with an appropriate Sewers for Adoption compliant outfall safety grille and galvanised steel Kee Klamp® handrailing with gated access.
Althon channel drainage range of surface water drainage products caters for all types of construction site circumstances. Products include concrete slot drainage channels, GRP drainage channel, polymer concrete drainage channel and concrete drainage channels. Althon’s drainage channel products have been developed to be lightweight, easy to transport and quick to install and maintain. The Althon linear drainage channel range has been optimised for stability, discharge capacity and longevity for a range of applications and load classes, from A15 through to F900. We offer drainage channels for use in residential environments through to heavy industrial applications such as docks and airports.
Further Technical information is available to download from the BPi Download Library or from the Manufacturer’s own website.
These files are provided by the manufacturer. While Building Products Index takes every care to ensure the information is correct and up to date, we cannot be held liable for any out of date or incorrect information in them. Please check with the supplier before specifying or purchasing products.
1. Althon Standard Precast Concrete Headwalls Brochure
Standard Precast Concrete Headwalls
Published [31/05/19]File size [3415 KB]
2 Althon SFA Precast Concrete Headwalls Brochure
Precast Concrete Headwalls
Published [08/01/19]File size [3635 KB]
3 Althon RSFA Precast Concrete Headwalls Brochure
Precast Concrete Headwalls
Published [08/01/19]File size [4632 KB]
4 Althon Angled Precast Concrete Headwalls Brochure
Precast Concrete Headwalls
Published [08/01/19]File size [3615 KB]
5 Althon Rectangular Precast Concrete Headwalls Brochure
Precast Concrete Headwalls
Published [08/01/19]File size [3376 KB]
6 Althon BGZ-S Heavy Duty Channel Brochure
BGZ-S Heavy-duty channel with SV-system or boltable
Published [19/09/18]File size [1609 KB]
7 Althon Slot Channel Brochure
Althon slot channels - the solid drainage system!
Published [19/09/18]File size [5165 KB]
8 Althon Facade Drain Brochure
flexible, fix or adjustable in height; different grating options; for drainage of flat roofs, terraces, balconys, etc.
Published [20/09/18]File size [1347 KB]
9 Althon Mearin 300 Drainage Channel Data Sheet
ALTHON MEARIN GRP DRAINAGE CHANNEL Plus 300 and Expert 300
Published [20/09/18]File size [790 KB]
9 Althon Tideflex Check Valve TF-1 Datasheet
Check valve ideal for manhole installations
Published [20/09/18]File size [789 KB]
Althon have just launched BIM objects available to download
Althon have just launched BIM objects available to download from the Precast Concrete Headwalls section of our website in .rfa .ifc and .adsk other file types available on request.
If you cannot find the drawing you require in 3D please email us firstname.lastname@example.org
Althon are exhibiting at the Flood Expo NEC Sept 2019
The Flood Expo 2019
Althon are exhibiting at the Flood Expo, NEC Birmingham on Wednesday 11th and Thursday 12th September 2019. For free tickets go to The Flood Expo and visit us on stand C64.