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The self-supporting HRI grate gutters from Stradal are marketed in the Netherlands by Diederen Afwateringstechniek. A self-supporting line drainage, equipped with a cast iron "Bananas" or "Saone" profile grille class D, 400KN or F, 900KN.
Stradal HRI® line drainage gutters are the most sustainable solution for drainage projects. The patented production method, in which use is made of a very high (self-compacting) concrete quality and in which the gutters are provided with a steel longitudinal and transverse reinforcement, to which also the galvanized corner profiles and screw sleeves are coupled, give the possibility that HRI® gutters are installed without a supporting back could be. Even with traffic class F, 900KN. In accordance with NEN-EN 1433, drainage gutters for traffic areas, the HRI® gutters fall under the so-called I-type.
In addition, HRI® gutters are fitted with pre-assembled, specially developed, nodular cast-iron gratings. The profile ensures optimum and rapid absorption of water. The HRI® gutters are also equipped with a barge / nut end. In combination with the pin / hole connection, this ensures optimum support between the channel elements. Thanks to the prepared sealant joint, it is possible to finish the elements in a liquid-tight manner. Sand trap elements and end plates can be supplied with a PVC or HDPE connection.
Benefits of HRI® line drainage:
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