Envirodrain® is manufactured to the dimensions specified in the Australian Standard AS2439.1 “Perforated Drainage Pipe and Associated Fittings”.
Envirodrain® range can be identified by colour for material and pipe stiffness:
- Class400/SN8 Polyethylene or Polypropylene Environdrain® – Black
- Class1000/SN20 PVC Environdrain® - White
- Filtersock - White
Envirodrain® is available in sizes DN56, DN100 and DN150; in Class400 (SN8) and Class 1000 (SN20). Pipe is available slotted, slotted with sock and non-slotted.
Under some conditions, fine sand or soil particles may flow into the pipe with the water and result in reduced flow in a pipe laid to a shallow gradient. Under these conditions it may be advantageous to use a woven fabric filter ‘sock’ to screen such particles. An additional benefit is that the filter sock can stretch over the corrugations of the Envirodrain®, increasing the effective water access area to the pipe.
Filter sock is supplied in two grades. The heavier sock (RTA) grade conforms to specifications of NSW Traffic Authorities and a lower non-approved grade.
The filter sock is manufactured from high tensile strength polyester yarn.
Envirodrain®’s class rating can be used as a guide to the product application and loads.
|Envirodrain® Black||Class 400 / SN8||PE/PP||Landscape, road construction or civil engineering works not subjected to heavy vehicular traffic. Also recommended for agricultural drainage projects.|
|Envirodrain® White||Class 1000 / SN20||PVC||Landscape, road construction or civil engineering works subjected to heavy vehicle traffic is involved – road construction, infrastructure and mining projects.|