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Jul 27, 2023

Designed to be compatible with all types of pipe material, kwik-ZIP's HD and HDX/HDXT spacer system series can be used on and in corrugated pipe installations.

Manufactured from high-grade thermoplastic, kwik-ZIP's casing spacer and centraliser products are used and recommended by pipeline and civil contractors, water and gas utilities, drilling companies and international engineering firms.

kwik-ZIP's HDX/HDXT spacer system series are aligned with the company's ethos to provide simple, cost-effective, and high-quality solutions. Manufactured and designed to be utilised on and in many types of pipe including corrugated pipe installations, the HDX/HDXT series are one of the most versatile and adaptable spacers on the market.

The use of kwik-ZIP products helps contractors to comply with the numerous regulations which require casing centralisers or pipe spacers (slippers or spiders), including wastewater and sewerage codes and construction standards.

Since its inception in 2000, kwik-ZIP has been designing centralisers and spacers systems for a wide range of applications across many different industry sectors. Available in various product series (HDXT, HDX, HD, GT, 380, and 155), each series is available with varying bow/runner heights, making these highly flexible products.

Adaptable and well suited to corrugated pipe installationskwik-ZIP's HDX and HDXT products are suitable for installation on and in corrugated pipe. The products are adaptable and versatile, able to work on corrugated pipe which is being inserted into a smooth pipe and function on a smooth pipe that's then being inserted into a corrugated pipe.

For corrugated carrier pipe, the flat base of the HDXT and HDX runners bridge the pitch of the corrugations which allows the load to be transferred to the carrier pipe via the full length of the runners. Additionally, if the enveloper is corrugated, the HDX and HDXT flat-wear pads allow for smooth slip lining along the invert.

kwik-ZIP's innovation when it comes to its solutions are one of the many reasons its products are the first choice for many when looking for a versatile spacer solution.

Designed to last, expertly manufactured and compliant across guidelinesThe HD series can adapt to a range of on-site scenarios. It is designed for trenchless and cased crossings, slip lining, gravel packed well screens, pump torque arrestor, water well casing, coal seam methane casing, pump riser/submersible pump installation and piling.

Coming in four sizes, ranging from a 30 mm bow up to a 100 mm bow, the HD series can be used for both vertical and horizontal applications.

With unique features including a curved bow spring that boasts a superior centralising force, no special tools are required to assemble the HD Series casing spacers.

Similarly, kwik-ZIP's HDX and HDXT series spacers are designed for use on medium to heavy weight pipes in cased crossings. They can be utilised on a wide range of pipe material including steel, DICL, HDPE, concrete and MSCL carrier pipes, minimising running friction between the carrier pipe and the casing during installation.

The HDX casing spacer comes in four runner heights; 38 mm, 65 mm, 90 mm and 125 mm. Likewise, the HDXT casing spacer also comes in four runner heights of 43 mm, 63 mm, 103 mm and 153 mm. The different runner heights across the two models ensures that pipeline installers can handle a broad range of carrier pipe OD and casing (host pipe) ID combinations and customise pipe position for grade control or ‘centring’.

The HDX/HDXT series casing spacer is compatible with all types of pipe material, minimising running friction during installation, and stations the pipe to promote even grout cover. If the pipe is not to be grouted the HDX/HDXT will support and isolate the carrier pipe plus its contents for the design life of the installation.

This highlights kwik-ZIP's ability to provide an off the shelf solution irrespective of the requirements due to its wide range of products and options.

The HDX and HDXT models are the only casing spacers currently on the market that have been approved as compliant by WSAA.

In addition to receiving WSAA approval, other kwik-ZIP products have also been added to the Accepted Infrastructure Products and Materials (IPAM) list for the southeast Queensland Water Supply and Sewerage Design and Construction Code (SEQ Code).

kwik-ZIP maintains a focus on price effectiveness, simplicity, and rapid on-site assembly, to ensure that its centraliser and casing spacer systems deliver significant cost, time, and operational advantages to its end user customers.

For more information visit kwik-ZIP.

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This article appeared in the February edition of Trenchless Australasia. Access the digital copy of the magazine here.

Adaptable and well suited to corrugated pipe installations Designed to last, expertly manufactured and compliant across guidelines