Polyethylene pipe comes in many different colour options, but each colour is according to the HDPE pipe colour code. The purpose of the different colours on HDPE pipe is to identify the liquid or gas inside the pipe. The following list of PE pipe colours may help you identify what colour you need. 

Note: poly pipe stripe colour coding and requirements may differ in other countries or states. Check with a qualified engineer if you are unsure of PE pipe stripe colour coding.

HDPE Pipe Striping and Colour Coding Guide:

Colour of HDPE Pipe

HDPE black pipe no stripes – may be used for all applications except for fuel gases.

Colour of HDPE Water Pipe

HDPE black pipe with blue stripes – drinking water line/potable water pipeline .

Colour of HDPE Gas Pipe

Colour of HDPE Striped Gas Pipe

HDPE black and yellow pipe – black with yellow stripes or full yellow jacket – fuel gases, process gases, liquefied gases under pressure .

Colour of HDPE Fire Pipe

HDPE pipe black with red stripes – water dedicated for fire extinguishing supply lines.

Colour of HDPE Communications Conduit Pipe

HDPE pipe full white jacket – communications conduit.

Colour of HDPE Recycled Water Pipe 

HDPE pipe black with lilac stripes (or black with purple stripes)- recycled or reclaimed water pipes (Recycle-Tech HDPE pipe).

Colour of HDPE Electrical Conduit Pipe

HDPE pipe full orange jacket – electrical conduit .

Colour of HDPE Co-Ex White Pipe

HDPE pipe full white jacket – above ground co-ex pipelines.

HDPE Pipe Black with Cream Stripe

HDPE pipe black with cream stripes – sewer pipes.

HDPE Pipe Black with Brown/Red Stripe

HDPE pipe black with brown/red stripes – rural imperial-size low-pressure pipe .