D400 Twin & Triple Double Triangular Ductile Carriageway Cover & Frame BSEN 124. Our DU235 Range.

For larger openings up tp 1800X675mm. Also known as CW1, CW2 and CW3 (Carriageway Boxes). Choose from DU235A, DU235B, DU235C, DU235CA, DU235DA and DU235E*. WE ALSO SUPPLY LOCKABLE SECURITY COVERS FOR FITTING BENEATH, either New Build or Retro-fit.

Product CodeOptionDimensions DepthWeightLoadingMaterialHeightWidthRecess DepthDiameterInner Opening DimensionsOuter Opening DimensionsLockingOver Hinge Plate DimensionsWaterwayNo. of SegmentsDesigned to BS1247Kerb ProfileCBR Puncture ResistanceElongationTensile StrengthPore SizePermeabilityRoll Size
DU235ATwin1220x675mm x 100mm deep174kgIron
DU235BTwin1220x675mm x 150mm deep215kgIron
DU235CATriple1800x675mm x 100mm deep366kgIron
DU235CTriple1800x675mm x 150mm deep370kgIron
DU235DTwin1200x900mm x 150mm deep370kgIron
DU235E*Twin1200x1200mm x 150mm deep500kgIron

To Specify: {size} Twin Double triangular manhole cover & frame BSEN 124 Class D400 {locking if required}. Reference DU235 {letter to denote size}. Available from Durey Castings Ltd, Hawley Road, Dartford, Kent, DA1 1PU. Tel 01322 272424 Fax 01322 288073.

  • Highways Authority Approved.
  • Gives very large access openings.
  • Can be fitted with locking screws.
  • Can be badged.
  • Security Plates available, build-in or retrofit types.
  • Can be supplied as HINGED designs, please ask our sales dept.
  • *DU235E falls outside BSEN124 due to it's size.