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ACO Access Covers SERVOKAT MODULAR D400

The Servokat MODULAR D400 product range introduces a design that can be enhanced with safety components such as AL grating and GS/SS railing.
The selection of the options will depend on the client's requirements and what is most suitable for the final application on site.


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Product information

  • Type-tested and certified according to EN 124:2015
  • Meets declared load class up to D400 (declared without infill)
  • Opening assistance provided by a mechanical spring
  • Easy-lock and simple hinges that do not interfere with the clear opening
  • Cushioning inserts reduce noise from traffic
  • Corrosion-resistant – hot-dip galvanized mild steel (GS) / pickle passivated stainless steel (SS)
  • Secure and time-saving installation – no formwork application required / easy and fast assembly of mechanical springs
  • WaterGuard – provides water protection for sensitive technologies underneath the cover
  • Watertightness tested (not certified) according to EN 1253-4*
  • Modular design – protecting lightweight aluminum railing and GS/SS grating as standard equipment
  • Railing – provides full protection when the cover is opened, with two-sided access, 1m height, and foldable/telescopic assembly
  • Grating – one side is hinged and secured when opened
  • Mechanical spring designed for concrete (C35/45 EN 206) infill (for other infill types, prior communication is required to adjust the appropriate assistance force)
  • Installation – the access cover must be installed according to the installation instructions to ensure full functionality of the cover equipment

*Watertightness test procedure acc. to EN 1253-4: water flooding 10±1 mm for time period 15±1m – no leak of water to the bottom side of cover supervised by Authorized body 204


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