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The drainage channels are type I (self-supporting drainage channels) according to standard EN1433. The prefabricated U-shaped channels are made of vibrated and reinforced concrete (C 55/67). Due to their design, the channels have built-in strength class D, 400 kN. The required strength is guaranteed by the entire system. The channels have a tongue and groove joint and a recess for a safety joint (SF). For liquid-tight designs, this recess must be sealed. Galvanized steel pins ensure an improved connection and straight-line installation. The top edges of the channels are equipped with integrated edge protection made of galvanized steel, anchored in the concrete. The drainage channel complies with European Standard EN1433. Dimensions: length 2.25 m; internal width 420/440 mm (top/bottom); external width 620/600 mm (top/bottom); internal height 400 mm; external height 480 mm. The discharge chute has a hydraulic section of 1398 cm²/m. Weight 785 kg
Pre-assembled BANANA grating made of ductile cast iron FGS 500-7, length 75 cm. The grating is supplied bolted to the drainage channel: twice bolted with stainless steel bolts (i.e., 6 bolts per drainage channel), the stainless steel bolts are anchored in sleeves connected to the reinforcement. The slots in the grating are banana-shaped and 30 mm wide. The gratings have diamond-shaped profiles to increase water retention capacity and prevent slippage. The grating complies with load class D, 400 kN, according to European Standard EN 1433. Absorption area = 2380 cm²/m².
The self-supporting drainage channels allow installation without a lateral concrete casing (only a foundation is required). Installation instructions are available upon request.
