Althon RSFA20B 01 1150 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 RSFA20B 01 1150 precast headwalls have a 1 : 1 wingwall profile and a backwall height of 1300mm. The headwall is 1150mm from the backwall to the end of the spillway. RSFA20B 01 1150 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 RSFA20B 01 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. The RSFA20B 01 1150 headwall weighs 3980kg.

RSFA20B 01 1150 Rectangular Headwall line drawing
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
Wingwall Profile
RSFA20B 01 1150 Rectangular Headwall
600
600
1300
3980
1:1

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    RSFA20B 01 1150 Rectangular Headwall + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

    RSFA20B 01 1150 Rectangular Headwall + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 450 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 525 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 600 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

    RSFA20B 01 1150 Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 375 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 450 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 525 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 400 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 600 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 650 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

    RSFA20B 01 1150 Rectangular Headwall + 650 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 375 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 650 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 450 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 650 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 525 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 650 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 600 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 950 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

    RSFA20B 01 1150 Rectangular Headwall + 950 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 375 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 950 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 450 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 950 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 525 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 950 x 300mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 600 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 500 x 500mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

    RSFA20B 01 1150 Rectangular Headwall + 500 x 500mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 375 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 500 x 500mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 450 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 500 x 500mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 525 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 500 x 500mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough + Sfa1 600 Outfall Safety Grille

    RSFA20B 01 1150 Rectangular Headwall + 750 x 500mm Toe + 3 Sided Kee Klamp, Self Closing Gate & Ladder With Walkthrough

    Datasheet and Installation Instructions for RSFA20B 01 1150 Rectangular Headwall

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