(03) 9464 1655
sales@convicaustralia.com.au

Black corrugated HDPE stormwater pipe – EnviroStorm SN8, smooth bore, twin-wall

EnviroStorm SN8 Corrugated HDPE Pipe

SN8 structured wall HDPE pipe for gravity stormwater drainage.

  • PE100 twin-wall with smooth bore and corrugated outer
  • DN150–DN1050 diameters, 6m lengths
  • AS/NZS 5065 approved, WaterMark certified
  • Rubber ring push-fit joints
  • Slotted version also available
SKU N/A Category

Description

EnviroStorm SN8 Corrugated HDPE Pipe is a high-performance stormwater drainage pipe manufactured from UV-stabilised PE100 high-density polyethylene. Featuring a smooth internal bore and corrugated external wall, this twin-wall Type B pipe offers high stiffness-to-weight ratio, enhanced hydraulic capacity, and long service life under aggressive soil conditions. Designed to AS/NZS 5065 and rated SN8 (with SN10 options), EnviroStorm is suited to a wide range of civil infrastructure, land development, road, and industrial drainage applications.

Available in DN225 to DN1050 (with custom sizes to DN4000 on request), EnviroStorm combines rapid installation with structural integrity and environmental performance — offering a sustainable alternative to concrete or PVC pipe.

In simple terms: a tough but lightweight plastic pipe that drains stormwater fast — smooth on the inside, ribbed on the outside, and built for heavy-duty civil use.

Key features & benefits

  • PE100 HDPE twin-wall design: Smooth internal bore (~0.06 mm roughness) with corrugated outer wall for SN8 stiffness and structural strength.
  • Superior hydraulic flow: Reduced internal friction offers up to 8% higher flow than concrete pipe of same nominal diameter.
  • Lightweight and flexible: Reduces transport cost and simplifies handling on site — ideal for long trench runs.
  • Fast jointing system: Push-fit rubber ring (EPDM) seal for leak-free connections and quicker install time.
  • Chemically inert & corrosion-resistant: Suitable for acidic soils, landfills, or aggressive environments.
  • Sustainable: 100% recyclable HDPE with low embodied energy and 50-year design life under buried conditions.

Applications

  • Urban stormwater drainage: Subdivisions, commercial builds, car parks, council infrastructure.
  • Transport corridors: Roads, culverts, rail embankments, and airport run-off management.
  • Rural/agricultural drainage: Field drains, culverts, irrigation return systems.
  • Mining and industrial runoff: Leachate pipelines and chemically aggressive flow systems.
  • Groundwater control: Slotted versions available for subsurface infiltration and recharge.

Specifications

  • Material: PE100 high-density polyethylene (UV-stabilised, corrosion-resistant).
  • Standard: AS/NZS 5065:2005 – Type B (SN8), ISO Type 5 certified.
  • Diameter Range: DN225 to DN1050 (custom up to DN4000).
  • Effective Length: Nominal 6 m (typically 5.83–6.06 m), call for shorter options.
  • Jointing: Push-fit rubber ring (EPDM) couplings, no glue required.
  • Internal Roughness: Approx. 0.06 mm k-value for high flow efficiency.
  • Colour: Black exterior with optional internal ID markings or stripes.
  • Design Life: 50 years (under non-pressure buried installation).

Installation (brief)

  • Install on level bedding with rubber-ring spigot/socket joints aligned for push-fit engagement. Backfill per AS2566 and project design.

 

See the Dimensions tab for sizing and freight, and FAQs for lead times and approvals.

Request a quote

Dimensions

Product Code DN Outside Diameter (mm) Internal Diameter (mm) Nominal Overall Length (mm) WA Length (SP/SQ) Effective Length (mm) WA Nominal Overall Length (mm) QLD & VIC Length (SP/SQ) Effective Length (mm) QLD & VIC Stiffness Class (SN) Jointing Method
ENVIRO100 100 110 95 6000 6000 NA NA 8 Rubber Ring
ENVIRO150 150 160 138 6000 6000 NA NA 8 Rubber Ring
ENVIRO225 225 257 223 6070 5950 6340 6200 8 Rubber Ring
ENVIRO300 300 339 294 6060 5915 6340 6165 8 Rubber Ring
ENVIRO375 375 425 371 6020 5840 6280 6060 8 Rubber Ring
ENVIRO450 450 508 438 6030 5830 6300 6065 8 Rubber Ring
ENVIRO525 525 595 514 6000 5735 6240 5970 8 Rubber Ring
ENVIRO600 600 672 591 6040 5750 6140 5815 8 Rubber Ring
ENVIRO750 750 835 731 6050 5750 6180 5820 8 Rubber Ring
ENVIRO900 900 995 869 6040 5750 6260 5900 8 Rubber Ring
ENVIRO1050 1050 1228 1057 NA NA 6270 5910 8 Rubber Ring
ENVIRO1050 1050* 1216 1050 6160 6000 NA NA 8 Rubber Ring
ENVIRO1200 1200* 1370 1200 6160 6000 NA NA 8 Rubber Ring
ENVIRO1500 1500* 1686 1500 6160 6000 NA NA 8 Rubber Ring
ENVIRO1600 1600* 1794 1600 6160 6000 NA NA 8 Rubber Ring
ENVIRO1800 1800* 1982 1800 6160 6000 NA NA 8 Rubber Ring
ENVIRO2000 2000* 2170 2000 6160 6000 NA NA 8 Rubber Ring
ENVIRO2500 2500 2694 2500 5960 5800 NA NA 2 Electro Fusion
ENVIRO3000 3000 3214 3000 5660 5500 NA NA 1.7 Electro Fusion
ENVIRO3500 3500 3714 3500 5660 5500 NA NA 1.1 Electro Fusion
ENVIRO4000 4000 4214 4000 5660 5500 NA NA 0.7 Electro Fusion


Notes:
Overall and effective lengths may change without notice.
Measurements are approximate and subject to change without notice.
*Also available with an electro-fusion joint (WA only).
From 1050–4000, different stiffness ratings can be manufactured (WA only).

FAQs

What is EnviroStorm used for?

It’s used for gravity stormwater drainage in subdivisions, roads, rail, and infrastructure where corrosion resistance and flow efficiency matter.

What diameters are available?

Standard diameters from DN150 to DN1050. Larger custom sizes available on request.

Is EnviroStorm pipe SN8 rated?

Yes – minimum SN8 stiffness. SN10 available in some configurations.

What is it made from?

PE100 high-density polyethylene – UV-stabilised, chemically inert, 100% recyclable.

How long does it last?

Designed for a 50-year buried service life under normal gravity drainage conditions.

Can I get a slotted version?

Yes – slotted and perforated variants are available. See Slotted EnviroStorm.

Is it compliant with Australian standards?

Yes – meets AS/NZS 5065:2005 for structured wall PE pipes. WaterMark certified. WSAA appraised. VicRoads & Main Roads endorsed.

How is it joined?

Push-fit EPDM rubber ring joints. No gluing required.

How is it delivered?

By truck. Customer to unload via forklift. Crane truck available on request.

Do you supply fittings?

Yes – we supply couplings, bends, junctions and reducers to suit.

Related products