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Road Drain, Heavy Wall Drainflo, is made from high-density polyethylene material, with a corrugated profile but with greater wall thickness. The increased wall thickness provides higher crush resistance at the expense of flexibility. Heavy Wall Drainflo has slots cut at the bottom of the corrugations and spaced around the circumference. Heavy Wall Drainflo is also available unslotted (Heavy Wall Draincoil). Heavy Wall Drainflo is easily identified by twin red stripes along its length.
110mm Heavy Wall Drainflo meets the requirements of Transit New Zealand Specification NRB F2: 2000 and subsequent amendments. Heavy Wall Drainflo is tested to AS 1462.22
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rural catalogue download
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Heavy Wall Drainflo
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160mm
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110mm
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mean outside diameter (mm)
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159.5
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110.2
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mean inside diameter (mm)
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138.5
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93.0
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| slot area / meter (mm2) |
9180
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7688
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slot dimensions (mm)
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17 x 1.3
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17 x 1.3
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coil lengths (m)
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15, 45
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15, 30, 100
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SN rating (kN/m/m)
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8.5
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12
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