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Access Chambers

Access Chambers

Product Code: NA

HOME ABOUT US CONTACT US TERMS & CONDITIONS CAREERS CSR / GO GREEN BLOG DUCTING | Access Chambers Access Chambers The Naylor Access Chamber is manufactured from HDPE and is specified by a large number of local authorities. Features and Benefits •Manufactured in High Density Polyethylene •High Chemical Resistance •High Impact Resistance •Rotationally moulded on cast aluminium tooling •Approved by many Local Authorities and Utility Sectors •Depth has increased from 250mm to 335mm (3 boxes per metre depth) •Trepanned holes take all electricity and utility size duct eg 63mm, 90mm, 110mm, 120mm, 145mm and 160mm •Easy to stack and install •Wide internal flange within the chamber enables the frame to fit straight onto the box, therefore direct loading is transferred evenly •Very versatile and suitable for most ducting applications Installation •Excavate the required specified location, to the depth of appropriate number of chambers required, (maximum 3 chambers), plus additional 40mm for depth of base •Install chamber centrally within the specified trench/location •Base of excavated area to be well compacted granular material or concrete slab is preferred. Drainage runs within the slab are required to allow excess water to drain freely from the constructed chamber •Before duct connection takes place, the trepanned holes located on each chamber will require cutting out to specified diameter. Naylor Access Chambers take from 63mm to 160mm OD duct pipes •Allow minimum of 150mm surrounding the chamber for solid concrete support, which should be of a semi-dry workable mixture •Ensure concrete fill is evenly distributed around the chamber and level with the top surface. Concrete the frame at the appropriate height Specification •The chamber shall be of a solid construction of single, double or triple height pre-formed sections and prevent distortion during back-fill process •The chamber will meet the Highway Regulations of minimum duct cover in both footways and road verges •The chamber shall have pre-trepanned cut out areas to accept 63mm OD-160mm OD duct except 900 x 450mm which accept 63mm-120mm OD •The chamber is manufactured in rotational moulding high density polyethylene material •The chamber shall have a C15/ST3 concrete base and surround, 150mm surround and 150mm base bedded on a 100mm Type 1 sub-base or concrete slab with a 50mm drain hole (base to be constructed first and have a smooth finish) •For traffic signal/street lighting applications the covers are non-ferrous composite material and fit closely within a galvanised steel frame. The cover and frame will meet the loading requirements of BS EN124 Class 125. The cover is black in colour and marked Naylor Drainage and the legent “Traffic Signals” or “Street Lighting” and have integral lifting keyholes. The cover has an integral anti-skid pattern on the upper surface. The frame must also be supported on the concrete surround of the chamber on a bed of mortar GENERAL NOTE – Chambers, when completed, must be internally free from any debris

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