Backwall Height

Backwall height: 1300mm

Single or Multiple Pipe openings

Single or multiple pipe openings

Specifiable invert levels

Specifiable pipe invert levels

Maximum pipe size

Maximum pipe size:
600mm

Althon RSFA20 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 & 500mm, each of which is available in three depths. Althon manufacture RSFA20 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 RSFA20 precast headwalls are manufactured in accordance with Severn Trent Water Standard detail STD6002 for pipework up to 600mm. 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

RSFA20B 01 Rectangular Headwalls

RSFA20B 01 Rectangular Headwalls

  • Pipes up to 600mm ID with 1:1 Wall Profile
  • 6 Headwalls with this range
RSFA20B 05 Rectangular Headwalls

RSFA20B 05 Rectangular Headwalls

  • Pipes up to 600mm ID with 1:2 Wall Profile
  • 6 Headwalls with this range
RSFA20B 10 Rectangular Headwalls

RSFA20B 10 Rectangular Headwalls

  • Pipes up to 600mm ID with 1:3 wall profile
  • 3 Headwalls with this range