Enviropipes perforated pipe systems are designed for both subsoil drainage and infiltration of stormwater runoff to help prevent ground water issues.

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Perforated Pipes are rubber ring jointed and each pipe is supplied with an EPDM rubber seal.

The following procedure is recommended when jointing perforated pipes.

Important information for rubber orientation and cutting of Enviropipes Corrugated pipe from 225-900mm (Please contact your nearest Enviropipes branch for cutting of all other sizes)

• During installation if the pipes need to be cut to special lengths make sure cuts are made to the centre of the valley only, also make sure to seal the airways before installing (this applies to sizes between 225-900mm only contact your nearest Enviropipes branch for cutting of all other sizes)
• Install rubber in the correct orientation (as per below picture) in the last valley of the pipe and make sure surfaces are clean and lubricated with approved Enviropipes lubricant.
• Rubber notches should be installed in line with the airway of the pipe to avoid any leaks after compressing the rubber into the socket

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.

UV-Resistance

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.