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Grid gutter Prefaest HRI, self-supporting

Stradal's self-supporting HRI grid channels are marketed in the Netherlands by DWTN.

Grid gutter Prefaest HRI, self-supporting type I

Grid gutters HRI have been the most sustainable solution for drainage projects for years.

Stradal's self-supporting HRI grid channels are marketed in the Netherlands by DWTN. 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.

HRI® gutters are provided 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 in a liquid-tight manner. Sand trap elements and end plates can be supplied with a PVC or HDPE connection.

Advantages of HRI® line drainage:

  • patented production technology
  • high concrete strength
  • steel longitudinal and transverse reinforcement
  • no support back needed
  • kit room for liquid-tight sealing
  • great diversity in dimensions
  • high inflow and outflow capacity
  • manning trickler 95

Application areas:

  • platforms and aircraft stands
  • port areas
  • industry
  • environmental stations
  • fire training areas
  • visibly drain HWA
  • bus stations
  • downtown renewal
  • wadi crossings and bottom passages
  • fauna solutions

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