Page 51 - McD_ROTF DRAINAGE & PIPED SERVICES_Neat

Drainage & Piped Services Standard Specification
Version 2014-1

 Third party certification: BSI Kitemark.
 Concrete: Submit proposals.
 Aggregate size (maximum): Submit proposals.

Bricks type A
 Standard: To BS EN 771-1; To BS EN 771-2; and To BS EN 771-3.
 Brick type: Engineering.
 Properties:

 Crushing strength (minimum): Submit proposals.
 Durability: Submit proposals.
 Recycled content: Not applicable.

Plastics channels for access chambers type A

 Manufacturer: Polypipe terrain or equal and approved

 Material and standard: PVC-U to BS EN 1401-1.

 Main channels:

 Sizes: DN 110 and DN 160.
 Jointing type: Spigot and socket for flexible ring seal jointing.

 Form: Straight; 45° bend; 87.5° bend; 90° bend; and Long radius bend.
 Channel junctions: DN 110 equal junction; DN 160 equal junction; and DN 160 unequal

junction.
 Integral accessories: Submit proposals.

Vitrified clay channels for access chambers type A
 Manufacturer: Submit proposals.
 Material and standard: Vitrified clay to BS 65.
 Main channels:

 Sizes: DN 100; DN 150; DN 225; and DN 300.
 Jointing type: Plain end, for cement mortar jointing and Spigot and socket for cement mortar

jointing.
 Branch connectors:

 Sizes: DN 100; DN 150; DN 225; and DN 300.
 Form: Three quarter round.
 Integral accessories: Submit proposals.

Access chamber steps type A
 Manufacturer: Submit proposals.
 Standard: To BS EN 13101.
 Form: Submit proposals.
 Material: Submit proposals.
 Integral accessories: Submit proposals.

Access covers and frames type A
 Manufacturer: Submit proposals.

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