The ‘Sewers for Adoption’ & ‘Sewers for Scotland’ Guidelines call for an Outfall Safety Grille to be fitted to any Headwall with a pipe opening of 350mm or greater. The Guidelines specify that the grille must be a minimum of 270mm wider that the outside diameter (OD) of the pipe, have bars at 100mm spacing, be hinged and have a padlock facility. Standard Gratings are hot dip galvanised to BS EN 1461 after fabrication but are all available in Stainless Steel if required.
Althon provide five types of an Outfall Safety Grille, Type 4 is similar to Type 2 except the grate finishes 150mm above the invert level of the incoming pipe allowing low flows to run uninterrupted without compromising safety.
Althon SFA Grating Type 4 1050 for use with PCC pipes UTI 1050mm ID and twinwall pipes UTI 1050mm ID.
All dimensions in millimeters
Sales Team: 01603 488700