Take a look at our infographic to find out more about the advantages of a shaftless spiral versus a shafted screw. The shaftless spiral is intended for the transport of difficult, stringy, spongy, sticky, wet, lumpy materials – suitable for a wide range of moisture contents and viscosities.

During September and October 2016,  SPIROGUARD® was tested at the National Screen Evaluation Facility (NSEF), Durham, UK. The screen was put to the test with screen curtain aperture sizes of 3mm to 6mm. The test procedure used for evaluating a Screening Capture Ratio value was initially developed by Northumbrian Water as part of their Screen Evaluation Programme, and subsequently adopted by all the UK Water Companies for use at the NSEF.

The Glenelg Wastewater Treatment Plant in South Australia was originally built in 1932 with a number of subsequent capacity upgrades to accommodate increasing demand. This treatment plant is part of the key infrastructure required to provide a reliable and secure wastewater service to the southwest region of metropolitan Adelaide. The plant receives sewage from a drainage area of over 9,200 hectares and is designed for annual average flows of 60 megalitres per day and serves an equivalent population in excess of 200,000 people.