DM Plastics & Steel

PE Metric Pipe for Water, Irrigation & Industrial Pressure Systems

Certified AS/NZS 4130 pressure pipe designed for performance across civil, water, gas, plumbing, industrial, mining and agricultural applications.

Our Range

Metric Pipe for Every Pressure Application

DM Plastics & Steel manufactures high-quality metric pressure pipe for potable water, sewer, recycled water, plumbing, gas and fire services. Made in South Australia under ISO-aligned QA and to AS/NZS:4130 standards, our pipe is designed to support mining, municipal water networks, farming pump systems, civil infrastructure and industrial plant installations. 

 

Underpinned by our WaterMark accreditation, DM Plastics & Steel metric pipe range is the superior choice for efficient and sustainable water distribution.

 

All products are metric OD-sized, manufactured from HDPE and listed by PN (pressure class) with size-dependent coils and straight lengths. Available in DN16 to DN630 in diameter.

Blueline (Blue-stripe) — Potable Water Mains

Lo-Heat (White Co-Ex) — Above-Ground & High-Temperature Applications

PE with a highly reflective white external skin that significantly reduces heat absorption. Ideal for exposed above-ground installations, mining site infrastructure and temporary water supply where black pipe would retain damaging heat.

Gas (Yellow-Stripe) — Gas Distribution

Sewer (Cream-Stripe) — Pressure Sewer & Rising Mains

Fire Mains (Red-Stripe) — Fire Service Pipe

Recycled Water (Lilac-Stripe/Co-Ex) — Reclaimed Water Networks

Plain Black — General Purpose & Industrial

Technical Details

Metric Pipe Specifications & Product Features

Product Features

Specifications

Applications

Where Metric Pipe Performs

Industries We Serve

Metric Pipe Solutions Across Key Australian Industries

Mining

DMP&S metric pipe supplies robust HDPE mains and process-water systems engineered for the harsh demands of mining operations. Our pipes handle high pressures, long runs and complex site logistics while delivering reliable performance for potable supply, process water, dewatering and fire protection. Plain black PE is used for general services, red‑stripe fire mains for hydrant and sprinkler networks, and lo‑heat white co‑extruded options are available where above‑ground exposure or heat loading is a concern.

The materials offer high fracture and impact resistance, long continuous lengths via electrofusion and butt‑fusion jointing to minimize leak points in remote locations, and chemical and abrasion resistance suited to process and return water duties; coil options for diameters up to DN160 and straight lengths (up to 20 m) for trunk mains simplify site handling.

Civil & Infrastructure

For water authorities, councils and large contractors, DMP&S metric pipe provides complete reticulation and trunk main solutions with colour coding for rapid identification and regulatory compliance: blueline potable mains, cream‑stripe sewer and rising mains, lilac recycled‑water reticulation and red‑stripe fire mains for hydrant and sprinkler supply.

Our HDPE products resist corrosion and internal scaling, and are supplied in standard coils and straight lengths to suit both trenchless techniques and conventional pipeline construction. Compatibility with fusion and mechanical jointing allows seamless integration with valves and chambers, and our range covers common pressure classes specified in municipal projects to support efficient installation and long service life.

Plumbing & Gas

DMP&S manufactures metric HDPE for licensed plumbers and gasfitters, supplying blueline potable water, cream‑stripe sewer, red‑stripe fire mains and plain black PE for general service in DN16 to DN630. 

Pipes are available in coils and straight lengths for on‑site flexibility and are fully compatible with industry‑standard compression fittings and electrofusion couplers for rapid, secure joints. The smooth bore reduces friction losses and biofilm propensity in potable systems, while lightweight handling and heat‑fusion installation reduce labour and backfill time on residential and commercial projects

Irrigation

DMP&S metric pipe range is engineered to support flood irrigation and all major irrigation applications. Large‑diameter plain black and blueline mains deliver the high flow rates and pressure stability required for open‑channel and furrow flood systems, while lilac options clearly segregate reclaimed water circuits where reuse is part of the scheme. 

Coil and straight length options allow rapid rollout across long pivots, contour runs and levee systems. UV‑stabilised and white co‑extruded lo‑heat variants protect exposed runs and greenhouse installations, and smooth internal bores minimise friction losses to reduce pump energy and maintenance. Fully compatible with industry‑standard electrofusion, butt‑fusion and mechanical couplers, our metric pipe range simplifies on‑site joining, valve integration and downstream distribution, delivering reliable, low‑maintenance irrigation networks.

Supply & Delivery

Supplying Metric Pipe Across Australia

DM Plastics & Steel supplies these products nationally. Standard coils are held in common sizes and lengths, with made-to-order options for projects and larger lengths available to streamline transport for large quantities. Talk to us for current lead times and logistics to your region.

Why Choose DM Plastics

Why Specifiers & Contractors Trust DM Plastics Metric Pipe

DMP&S metric poly pipe offers:

Across all sectors DM Plastics and Steel supplies PE metric pipe systems specified to relevant standards and proven jointing methods (electrofusion, butt fusion, compression and mechanical couplers), with consistent colour coding for safety and compliance. We provide technical support for system design, pressure‑class selection and on‑site installation best practice to ensure long‑term, low‑maintenance operations.

Got Questions?

Metric Pipe FAQs

What standard do your metric pipes meet?

DMP&S metric pressure pipes are manufactured to AS/NZS:4130 from HDPE and quality-tested in Australia. We are WaterMark accredited and ISO Type 5 certified, backed by an ISO 9001 Quality Management System.

Metric pipe is sized by outside diameter (OD) and is manufactured to AS/NZS:4130 in PE100 PN classes for pressure systems. Rural pipe is sized differently (on Internal Diameter (ID)) and used mainly in stock water systems. Metric is the standard for mining, civil, plumbing and gas applications.
The catalogue lists common diameters from 16 mm up to 630 mm, with typical classes PN4–PN25 depending on diameter. See the tables for each diameter and class.
Yes, coils and straight lengths are diameter dependent. Smaller diameters are supplied in coils (for example 50–300 m), while larger diameters are supplied in 6m, 12m or 20m straight lengths to reduce weld count and simplify handling. We coil pipe as large as DN160. Custom coil and straight length variations available on request, subject to MOQ.
  • Different colours indicate the type of fluid transfer.
  • Blue = potable water
  • Yellow = gas
  • Cream = sewer
  • Red = fire mains
  • Lilac = recycled water
  • All black = general services
  • White Co-Ex = above ground.
  • Colour skins/stripes support safe identification during construction and maintenance.
  • Custom colours for site specific fluid identification are available on request, subject to MOQ.
Our metric pipe is supported by a wide selection of compression, electrofusion, fabricated, spigot fittings as well as backing rings, valves and more.
PN selection depends on maximum operating pressure, fluid transfer, above VS below ground installation, installation methods, transients and temperature. Our team can help you choose the right pressure rating to support your requirements
Absolutely. Share your duty (pressure, temperature, installation method) and service type; we’ll recommend PN/SDR, colour, and coil vs straight-length strategy aligned to your program — true to Producing Solutions.

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DM Plastics & Steel - catalogue and brochure download.