High Crush Resistance

Enviropipes Perforated pipe is manufactured from high-density polyethylene material with a corrugated profile wall to give high crush resistance, flexibility and lightness.

Enviropipes Perforated pipe is designed for the economic removal of excess ground water in pastures, croplands, orchards, playing fields, roads and construction work. It can also be used in effluent soakage fields, retaining wall drainage and storm water diversion.

Enviropipes Perforated Pipe with Filter Sock

The thermal bonded filter sock provides the combined functions of filtration and separation which prevent excess particles in the water entering the pipeline.

Features and benefits are

  • Exceptional dimensional stability
  • High tear strength, high tensile strength
  • High resistance to most chemicals
  • Resistant to mildew, moisture and rotting
  • Low pore site to prevent root fibre penetration
  • High permeability to air and water
  • Lightweight and high bulk, specific gravity 0.91
  • Non fray

Pipe Weight

The extremely low weight of Enviropipes Perfrorated Pipe allows simpler and faster installation. Most cases no heavy machinery is necessary for the installation and handling of the pipes. Most of the handling can be done by an excavator on site or even by hand.

Chemical and Corrosion Resistance

Enviropipes Perforated pipe is manufactured from High Density Polyethylene (HDPE) and has excellent resistance both internally and externally to protect against aggressive soils and chemicals.

Search our Chemical Resistance Database.

Effective Roughness


Due to its low roughness as shown in the graph above there is almost no accumulation on the pipe bottom and Enviropipes Stormwater Pipes have the ability to self purify. Low roughness has an important economic advantage as maintenance expenditure is kept to a minimum. Due to the low roughness the hydraulic properties are improved and smaller diameters are required compared to conventional pipe materials with the same flow rate. Enviropipes Stormwater Pipes convey flows up to 17% greater than concrete pipes, and up to 60%better than corrugated steel pipes.

Abrasion Resistance


Polyethylene pipes are among the most abrasion resistant pipes. This has been tested in the Darmstadt procedure and the results are shown in the diagram above and support the quality of polyethylene pipes.


Commonly most natural materials and other plastics are degraded by weathering effects, particularly by the combined impact of short-wave ultraviolet radiation in sunlight and atmospheric oxygen.

Black polyethylene pipes are permanently resistant to atmospheric corrosion and UV radiation, as the polyethylene used contains carbon black which acts as both a pigment and an ultra violet stabiliser. Thus the pipes can be used and stored outside without the pipe material being damaged.

Resistance to Micro Organisms

Polyethylene are not nutrient media for bacteria, fungi and spores, so that the material is resistant to all forms of microbial attack as well as both sulphurous acid and sulphates.