Wilmot delivers rehab success for AGL 

Wilmot Pipelining has successfully delivered the relining of three stormwater pipelines for client AGL Energy. 

The Wilmot team faced many hurdles on its recent AGL project in NSW, where pipelines were located in areas where digging would compromise the power plant’s operations – therefore requiring a 

non-destructive pipeline rehabilitation method. To add to the challenge of achieving a no-dig solution, the existing pipelines were also completely deteriorated with the inverts washed away over time.  

To counteract these challenges, Wilmot carefully cleaned and used non-destructive vacuum technology alongside constant CCTV assessment to lean and remove debris from the pipeline. The team guided the equipment from each pipe and successfully completed the challenging rehabilitation of the power stations water drainage network. 

Wilmot says the ability of its team to complete this relining project under difficult circumstances is a demonstration of how the company is continuing to grow in the Australian pipeline rehabilitation industry and mature its offerings into the municipal, energy and utility sectors. 

Keeping clients happy 

Wilmot says AGL Energy were incredibly happy with the outcome and very grateful of the team’s effort to perform the non-destructive solution without interfering with the plant’s operations. 

Wilmot’s engineers worked in collaboration with the liner manufacturer to ensure the custom designed liner would be suitable for AGL’s power station and the discharges on site. For AGL, the importance was getting a liner to stand up to medium levels of abrasion and have a high chemical resistance. Wilmot worked closely with the manufacturer to ensure this high-performance cured-in-place (CIP) UV liner was exactly what AGL would receive. 

The Wilmot team continues to deliver top levels of quality and with ISO accreditations under ISO 45001, Occupational Health and Safety; ISO 9001, Quality Management; and ISO 14001, Environmental Management Systems. 

Growing in expertise 

In addition to its AGL project success, Wilmot provides top quality pipeline rehabilitation solutions for infrastructure owners up and down Australia’s east coast. The company is growing into one of the country’s foremost leaders in pipe relining with the ability to renew failing assets through its various CIP lining technologies. 

With decades of experience in Australia’s pipeline industry, Wilmot has established itself as an extremely capable player in the sector through its strong performance record and reliability in the services it provides to clients. The Wilmot team has a strong background in pipeline construction and hydraulic services with this knowledge ensuring workers onsite are completely familiar with all necessary aspects of an asset and its workings.

A large amount of Wilmot’s services are used to upgrade and repair vital municipal assets like water, energy, wastewater, industrial facilities and refineries, which are often situated in locations where creating minimal disturbance during works is essential. The team has consistently delivered large-scale pipeline rehabilitation projects around the country and has been a domestic pioneer in its championing of trenchless technology methods. 

Recently, Wilmot has made significant progress in CIP lining through its investment and development in UV CIP lining technology, used on all wastewater infrastructure. The UV liner has a high resistance to chemicals and abrasion due to its ECR glass fibre properties, putting it at the top of the line for liners when it comes to structural capabilities. 

The installation of the UV lining system is carried out with two points of access for the liner equipment, while the UV liner tube is constructed of fibre glass and polyester resin pre-impregnated in the factory, before being delivered to site where it is installed and cured by UV light train technology. 

Once the pipeline is cleared and CCTV is carried out, a winch is sent through the pipeline and attached to the new UV liner at a manhole access point. The liner is then pulled into place and end caps are installed at either end of the new liner before being inflated by compressed air and pushed out to the host pipe. 

The UV light train is then inserted at one end of the pipeline and slowly dragged through with the UV lights curing the liner as the light train passes through the pipeline. The UV liner provides a fully structural CIP solution with increased flow rates and pipelines restored.

Wilmot also offers clients the use of a hot cure CIP lining technique through the installation of the hot cure inversion liner that can be carried out if only one point of access to the pipeline is available. 

This liner is constructed with fibre glass or felt and impregnated with either epoxy resin or polyester before being cured by steam or hot water. Additionally, the hot cure inversion liner comes with a 50-year warranty and is applicable to all kinds of water assets. 

The company’s consistent desire for optimum performance means Wilmot can remain at the forefront of the pipe rehabilitation industry, as it is always ready for new innovations and cutting-edge methodology.

This article was featured in the October 2020 edition of The Australian Pipeliner. To view the magazine on your PC, Mac, tablet or mobile device, click here.

 For more information visit the Wilmot Pipelining website.

If you have news you would like featured in The Australian Pipeliner contact Managing Editor David Convery at dconvery@gs-press.com.au

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