Product Data

Poly Pipe Pty Ltd (Poly Pipe) manufactures Polyethylene (PE) pipe ranging in size from 16mm to 800mm Outside Diameter (O.D.). Coils can be manufactured up to 160mm O.D. and straight lengths up to 20m long. Poly Pipe can also organise special lengths for coils or straight lengths.

The dimensions of the pipe have been referred to in terms of the Standard Dimension Ratio (SDR) where SDR= Outside Diameter Wall Thickness

Expansion & Contraction

PE pipe will expand and contract by approximately 250mm for every 100m of pipe over a 10°C change in pipe temperature.

For below ground installations, no allowance for expansion is required provided the connection system has stabilised to service temperature before backfilling.

With above ground installations, thermal contraction is allowed for by ‘snaking’ the pipe.

Design Life

Metric PE pipe is manufactured in accordance to Australian Standard
AS/NZS 4130:2009 - Polyethylene (PE) pipe for pressure applications.

By convention, PE pipe is often designed on the basis of 50 life. This is an established international practice but is not intended to imply the service life of pressure pipe is limited to 50 years.

For correctly manufactured and installed systems, the actual life cannot be predicted, but can be expected to be well in excess of 100 years before major rehabilitation is required.

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