For everywhere subject to heavy traffic where substances hazardous to water such as fuels, mild lye and acids accrue. 5 nominal widths, construction lengths: 0.5, 1.0, 2.0 metres, officially certified.
For the safe drainage of aggressive substances and for areas subjected to high levels of horizontal loads. 3 nominal width, channel elements with PEHD-lining, construction length up to 2.0 m, with official certifitation.
For drainage of areas subjected to high levels of dynamic horizontal forces. Resistant against mildly aggressive agents. 3 nominal widths, made of reinforced C 40/50 concrete, construction lengths: 1.0, 1.5, 4.0 metres, with official certification.
For drainage of surfaces in areas undergoing heavy-duty transport; also for areas where the architectural and flexibility demands are especially high. 7 nominal widths, lengths up to 2 metres and our large selection of gratings.
For drainage of areas subjected to high levels of dynamic horizontal forces and high traffic heavy-duty transport areas. NW 150 and 200, made of C 40/50 constructively reinforced concrete, construction lengths 1.0 and 2.0 metres, with and without hot-dipped galvanised zinc surface protection.
For safely laying lines and pipes in heavily frequented, high-traffic industrial and public areas. 8 different nominal widths and construction lengths of 1.0, 1.5 and 2.0, with or without steel frame connector, with or without integrated Halfen profiles, also suitable for drainage.
BIRCO cast covers guarantee flexibility in their utilisation and in construction possibilities, above all through enormous load reserves. Black-immersion lacquered spherical cast or galvanised cast, construction length 0.5 m.
The galvanising process sees the metal coated with a zinc layer to protect it from corrosion. BIRCO covers are hot galvanised so that all of the edges and openings are evenly coated and the protection from weathering. Construction length: 0.5 and 1.0 m.