Crusader Hose takes mining expertise to South Australian water project

The company is helping supply much-needed water to the Northern Adelaide Plains with its layflat technology. Australian Mining writes.

Crusader Hose has played a key part in building water treatment facilities in Adelaide in a project that is backed by $155.6 million in funding from state and federal governments.

The project adds 12 gigalitres of reclaimed water to the Northern Adelaide Plains, a 60 per cent increase in the production of recycled irrigation water suitable for food production.

Once completed, high value crops from the fertile Northern Adelaide Plains will be exported from South Australia.

Crusader Hose lends the expertise it acquired in the mining and defence sectors to the project, by pumping water into large storage dams from 10 bores around the Bolivar precinct, all using submersible pumps and layflat hose Flexibore.

The project has proven Crusader Hose’s significant capability and services for a variety of industries, including the mining sector.

“This is a flagship project for our company,” Francois Steverlynck, managing director of Flexibore manufacturer Crusader Hose, says.

“We have worked closely with Leed Valoriza (Leed Engineering and Construction and its joint venture partner Valoriza Agua), the major contractor, to deliver a very technical solution in rapid time.”

Leed Valoriza project engineer, Sam Doolette is impressed with the service and support the team received from Crusader Hose.

“We had (Steverlynck) come over from Melbourne to assist with the submersible bore pump installation,” Doolette says.

“We were very pleased to see how easy the pumps could be installed using Flexibore and after completing the first one, we scheduled the rest to be installed at two per day.”

The team commenced final commissioning for the end of September 2019, and by ramping up it supplies consistent water flow that is completely independent of how much rain it gets, or how full the Murray River is.

Doolette says this will provide both certainty and higher quality water.

Crusader Hose developed Flexibore in 1991 in Australia to meet the market needs for a riser pipe that could be corrosion-free, easy to install and never clogged up by iron bacteria – the criteria of a successful mine dewatering application.

The pulsating movement allowed by Flexibore during pumping is responsible for preventing a build-up of iron bacteria inside the hose.

Crusader Hose’s Flexibore 250 series, which is available up to 200 millimetres in internal diameter, can go more than 200 metres underground due to its tensile strength and capability to take in high pressure.

The pump is lowered into the bore using either a simple rolling wheel or a crane, thanks to customised stainless couplings that are specifically developed to ensure the performance and security of its entire system.

Finally, the layflat nature of Flexibore promises easy transportation to mine sites, which are often remote and off-grid, without needing multiple truck loads or as much labour to install compared with rigid hose systems.

It is no surprise Crusader Hose has grown to be the preferred supplier at mining projects that require groundwater pumping. Flexibore can meet the volume and pressure needed in the transfer of most liquids, including waste water and fuel.

With all of its manufacturing undertaken in Melbourne, Crusader Hose can provide pumping solutions in minimum time.

“Australia has a clean and green image, cultivated over years of managing our resources responsibly,” Steverlynck says.

“It is wonderful when we all work smartly together to deliver projects such as Northern Adelaide Irrigation Scheme (NAIS) as this will continue to benefit generations of Australians.”

This article also appears in the February edition of Australian Mining.

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