Stradal's self-supporting HRI grid gutters are marketed in the Netherlands by Diederen Afwateringstechniek. A self-supporting grid gutter.
Stradal's self-supporting HRI grid gutters are marketed in the Netherlands by Diederen Afwateringstechniek. A self-supporting line drainage, fitted with a cast iron "Banana" or "Saone" profile grating class D, 400KN or F, 900KN.
Stradal HRI® linear drainage channels are the most sustainable solution for drainage projects. The patented production method, which uses a very high (self-compacting) concrete quality and in which the gutters are provided with a steel longitudinal and transverse reinforcement, to which the galvanized angle profiles and screw sleeves are also coupled, allow HRI® gutters to be installed without a support back. could be. Even at traffic class F, 900KN. In accordance with NEN-EN 1433, drainage channels for traffic areas, the HRI® channels fall under the so-called I-type.
In addition, HRI® gutters are fitted with pre-assembled, specially developed, nodular cast iron grids. The profile ensures an optimal and fast absorption of water. The HRI® gutters are also equipped with a stud/nut end. In combination with the applied pin/hole connection, this ensures optimum support between the gutter elements. Thanks to the prepared sealant joint, it is possible to finish the elements liquid-tight. Sand trap elements and end plates can be supplied with a PVC or HDPE connection.
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