TECHNICAL INFORMATION

General Information

Nom. Internal Dia. Mm(”)	Weight/ 6m length	Bell Mouth	Flange
250mm (10”)	45kg	Yes	Yes
300mm(12”)	55kg	Yes	Yes
375mm (15”)	75kg	Yes	Yes
450mm (18”)	110kg	Yes
600mm (24”)	220kg	Yes

Load Rating:

Testing by CSIRO in accordance with AS/NZS 1462.22:1997 (known as the PVC Stiffness test) demonstrated that The Green Pipe has similar Stiffness/Load ratings to PVC pipes of similar dimensions.

These ratings vary from SN 6 for the 250mm pipe to SN 4 for larger sizes.

Culvert Installation:

Plastic pipes absorb load by transferring that load to the surrounding soil. Concrete pipes absorb load by transferring that load vertically to the bottom of the channel. Accordingly it is essential that plastic pipes be correctly compacted on all sides.

Friction Rating:

The friction (or Manning Rating) of The Green Pipe is similar to Smooth Bore Concrete at 12.

Flow Rates:

Flow rates are dependant upon pressure (head of water) and length of pipeline. The following tables assume a pipeline of 100metres in length and without bends or fittings and full of water.