2000 Series Headwall

2000 Series headwall
NOT STOCKED – MADE TO ORDER

This is a sectional structure with rebated sides, assembled on site around the drainage pipe and locked together by the means of stainless steel cast-in sockets and brackets provided. This headwall is designed for pipes with an outside diameter over 1000mm up to a maximum of 2000mm OD. Three standard versions are available with wing walls at differing batter angles. M20 lifting points are cast in for use with RD20 lifting loops.

Various types of heavy duty galvanised steel gratings or stainless steel gratings can be supplied which are bolted to the stainless steel sockets cast in. Brackets are available for use with the ground anchor system. Provision can be made for fixing tidal flaps, penstocks and other devices. All our precast headalls are made to order to suit the diameter and position of the pipes being used.

2000 Series Dimensions

Max. Pipe Opening Height Options Available (mm) A B (mm) Approx. weight (kg) Maximum pipe size (mm)
900 1250 300 2600 750 ID twin wall
750 ID concrete
1150 1650 700 3200 1050 ID twin wall
1050 ID concrete
1800 2130 200 3600 1500 ID twin wall
1500 ID concrete

 

Installation

It is recommended that the unit should be bedded on 100mm of dry mix concrete. The drainage pipe to be entered through approximately 50mm unless fitted with flap valve and the gap around the pipe to be filled with cement mortar. Care must be taken when lifting precast headwalls, please read the HANDLING INSTRUCTIONS.

Ground Anchor

Where site conditions dictate, cables may be attached to the rear face of the headwall and tensioned to galvanized steel anchors buried a distance away to each side of the pipe.

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