Backwall Height

Backwall heights: 1080mm - 1300mm

Single or Multiple Pipe openings

Single or multiple pipe openings

Specifiable invert levels

Specifiable pipe invert levels

Maximum pipe size

Maximum pipe size:
450mm

Althon RSFA18 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 RSFA18 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.

The backwall of the headwall can accommodate a correctly sized Sewers for Adoption compliant hinged outfall safety grille. Althon RSFA18 precast headwalls are manufactured in accordance with Severn Trent Water Standard detail STD6002 for pipework up to 450mm. All RSFA Headwalls are cast with the opening in the back wall to suit the size and type of pipe being used at the invert level required.

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

RSFA18A 01 Rectangular Headwalls

RSFA18A 01 Rectangular Headwalls

  • Pipes up to 450mm ID with 1:1 Wall Profile
  • 7 Headwalls within this range 
RSFA18A 05 Rectangular Headwalls

RSFA18A 05 Rectangular Headwalls

  • Pipes up to 450mm ID with 1:2 Wall Profile
  • 6 Headwalls with this range 
RSFA18A 10 Rectangular Headwalls

RSFA18A 10 Rectangular Headwalls

  • Pipes up to 450mm ID with 1:3 Wall Profile
  • 3 Headwalls with this range 
RSFA18B 01 Rectangular Headwalls

RSFA18B 01 Rectangular Headwalls

  • Pipes up to 450mm ID with 1:1 Wall Profile
  • 7 Headwalls with this range 
RSFA18B 05 Rectangular Headwalls

RSFA18B 05 Rectangular Headwalls

  • Pipes up to 450mm ID with 1:2 Wall Profile
  • 4 Headwalls with this range 
RSFA18B 10 Rectangular Headwalls

RSFA18B 10 Rectangular Headwalls

  • Pipes up to 450mm ID with 1:3 Wall Profile
  • 3 Headwalls with this range