Versatile access solution from Brett Martin

In response to market demand, Brett Martin Building Products have launched a 315mm shallow-access chamber assembly to extend their 110mm drainage fittings range.

The multi-inlet 315mm diameter assembly has been designed to reduce the need for a large number of chamber variants, enabling merchants to rationalise stockholding and improve profitability.

Manufactured from durable polypropylene and PVC, the 315mm diameter assembly consists of chamber base, a riser and a choice of two covers, for either pedestrian or driveway use. The maximum invert depth is achieved by assembling the chamber base, two risers cover and frame in inverts of up to 600mm.

Featuring five inlets, the chamber base allows for multiple connections and variation in direction. The branch channels, at half level invert height, prevent the possibility of cross and backflow within the chamber. The sockets feature captive ring seals, secure against dislodgement and provide superior sealing. The new chamber riser is ribbed to prevent distortion and features an integral sealing ring providing a completely watertight joint from base-to-riser and riser-to-riser.

The assembly comes with a choice of two cover options, one for pedestrian areas and a heavier duty option for use in driveways. Manufactured from PVC, both units are very lightweight, yet strong and durable.

The frame, in which the cover is secured, incorporates a sealing ring at the base of its long spigot, making it airtight and height adjustable to allow perfect alignment with finished ground level and surface slopes of up to 15º. As the sealing in the cover and frame form a completely airtight unit, this new multi inlet chamber assembly is suitable for use in internal areas such as garages.

The Brett Martin 315mm Shallow Access Chamber Assembly complements an access fittings range that also features a 280mm Chamber Assembly and 450mm Chamber Assemblies which suit 110mm and 160mm drainage systems.