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Drainage & Piped Services Standard Specification
Version 2014-1

Below Ground Surface Water Gravity Drainage Pipeline System - Type A

System Performance:

System manufacturer: Polypipe Terrain or equal and approved

Surface water collectors: Cast iron one piece gullies; Concrete one piece gullies; Plastics one piece gullies;
Polypropylene one piece gullies; Vitrified clay one piece gullies; Cast iron composite gullies; Plastics
composite gullies; Polypropylene composite gullies; Vitrified clay composite gullies; Drainage channels with
gratings; Filtration drainage channels; Concrete silt traps; Plastics silt traps; Vitrified clay silt traps; and Silt
buckets.
Pipelines:

Pipes, bends and junctions: PVC-U solid wall below ground drainage pipelines for flexible jointing type A;
PVC-U structured wall below ground drainage pipelines for flexible jointing type A; and Vitrified clay plain
wall below ground drainage pipelines for flexible jointing type A.
Pipeline accessories: Adaptors for above ground pipe connections to plastics drainage pipelines; Saddle
connectors to below ground drainage pipelines; Flexible couplings between below ground drainage
pipelines; Rat barrier pipes; Plastics rodding eyes; Vitrified clay rodding eyes; and Warning marker tapes
buried services.
Pipeline beddings and surrounds:

Pipe bedding and surround classes: Submit proposals.

Drainage channels with gratings

Manufacturer:

Standard: To BS EN 1433.
Third party certification:

Concrete silt traps
Manufacturer:
Standard: To BS 5911-6.

Plastics silt traps

Manufacturer:
Standard: To BS 4660.

Vitrified clay silt traps

Manufacturer:
Standard: To BS EN 295-1.

PVC-U solid wall below ground drainage pipelines for flexible jointing type A

Manufacturer:
Standard: To BS EN 1401-1.
Third party certification:
Class:
Application area code: UD.
Recycled content:
Sizes (nominal):
Jointing type:
Integral accessories:

PVC-U structured wall below ground drainage pipelines for flexible jointing type A

Manufacturer:

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