kwik-ZIP products, crafted from high-quality thermoplastic, are utilised and endorsed for pipe rehabilitation by pipeline and civil contractors, water and gas utilities, drilling firms, and global engineering companies.
These products assist contractors in meeting the various regulations requiring the use of casing centralisers or pipe spacers (also known as slippers or spiders). These include codes for wastewater and sewerage and standards for well construction. Since its establishment in 2000, the company has designed centralisers and spacer systems for a diverse array of applications spanning multiple industry sectors.
With warehouses located in the UK, Sydney, and Texas, the company has also built a network of stockists across Australia, the US, the UK, and New Zealand markets.
“They are recommended, specified and used by pipeline and civil contractors, water and gas utilities, drilling companies and international engineering firms worldwide,” said Paul Jeffreys, Australian Business Manager for kwik-Zip.
Kwik-ZIP is the only Australian company offering simple, cost-effective, high-quality solutions, evident in their HD and HDX/HDXT spacer system series.
These spacer systems are lead and metal-free, non-corrosive, resistant to chemicals and oil, and compatible with all types of pipes, including Steel, DICL, HDPE, Concrete, and MSCL. They feature a quick and easy installation process, effectively reduce point loading through a unique load-sharing runner system and minimise damaging vibrations and movement transfer from the outer casing to the carrier pipe thanks to their suspension and dampening effects.
HD series
The HD series is engineered for trenchless and cased crossings, slip lining, gravel-packed well screens, pump torque arrestors, water well casing, coal seam methane casing, pump riser or submersible pump installations, piling and pipe rehabilitation. It is available in four sizes, ranging from a 30mm bow to a 100mm bow, and is suitable for vertical and horizontal applications.
Recently, kwik-ZIP® HD-30 spacers were installed in the decommissioned DN330 ST Gas Mains to support the slip-lining of a DN125 PE Water Main. The installation was straightforward and efficient, requiring no specialised tools. Additionally, the HD-30 model’s curved bow spring design allowed the carrier pipe to smoothly navigate over any obstacles or protrusions.
“The kwik-Zip spacers were a great solution for slip-lining, alleviating the risk of potential damage to the PE pipe during the process,” said Jo McAnulty, the site engineer for this project.
HDX/HDXT series
The HDX and HDXT series spacers are specifically engineered for medium to heavy-weight pipes used in cased crossings for pipe rehabilitation purposes. They accommodate a diverse array of pipe materials, such as steel, DICL, HDPE, concrete, and MSCL carrier pipes, thereby reducing running friction between the carrier pipe and casing during installation.
The HDX casing spacer has four runner heights: 38mm, 65mm, 90mm, and 125mm. The HDXT casing spacer has four runner heights: 43mm, 63mm, 103mm, and 153mm. The variation in runner heights between the two models allows pipeline installers to manage a wide range of carrier pipe outer diameters (OD) and casing inner diameters (ID), making it easier to customise the pipe’s position for grade control or centring.
Recently, HDXT-153 spacers were installed for the Claremont Rail Project. They were utilised to support the slip-lining of a 180mm PE water main into an RCP casing for a cased crossing. The HDXT-153 was selected to ensure the water main’s stability and prevent any potential issues movement. This highlights kwik-ZIP’s ability to “provide an off-the-shelf solution regardless of the requirements because of its wide range of products and options.”
“kwik-ZIP spacers are simple and quick to install and assist with the slip-lining process whilst ensuring the protection of the carrier pipe,” said Gary Miller, the managing director of GM Microtunnelling.
Many Australian utilities, including Sydney Water, Melbourne Retail Water Agencies (MRWA), Queensland Urban Utilities (QUU), and Water Corporation (WA), have approved the use of kwik-ZIP products.
For more information, visit kwik-ZIP.
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