kwik-ZIP is delivering proven and high-quality casing spacers with its HD, HDX and HDXT series.
kwik-ZIP’s HD series has been successfully appraised against the Water Services Association of Australia’s (WSAA) product specification for casing spacers (WSA PS-324).
WSA PS-324 covers casing spacers used to facilitate the insertion and protection of carrier pipes when installed inside encasement pipes (casings). Meeting this rigorous standard means that kwik-ZIP’s HD series meets specification requirements and quality assurances needed by the utilities the market.
Whilst all of the kwik-ZIP spacer range is designed to meet WSA PS-324, the HD range is the third series of kwik-ZIP products formally certified as compliant with WSA PS-324, along with the HDX and HDXT.
Setting the standard
WSAA is the peak industry body representing the urban water industry in Australia. Members of the association provide water and sewerage services to over 20 million customers in Australia and New Zealand.
WSAA plays an important part in the water industry by developing product specifications to ensure a high level of standardisation and performance in the industry. These product specifications assist in the development and maintenance of best practice with the development and maintenance of water and sewerage network infrastructure across the country.
WSAA also runs a product appraisal process where products can be assessed against a specification, such as WSA PS-324, to provide assurance that a product meets the needs of urban water utilities.
kwik-ZIP managing director Jason Linaker said many contractors have used timber as a make-shift spacer, but this is simply no longer compliant with modern standards from WSAA.
“Over time, timber rots away leaving either gaps in the grouting, or if grouting isn’t used, the pipe will move once the timber is no longer able to support the weight. There is also the risk with timber that it will wear away as it is run in,” he said.
“Although spacers are usually a small part of the overall pipe installation process, correctly designed and fitted spacers can significantly increase the life expectancy of the carrier pipe by keeping them free from corrosion, casing damage and overall wear.”
Premium quality
The kwik-ZIP HD series offers non-corroding, non-metallic, heavy-duty bow spring casing spacers for horizontal pipe-in-pipe and open bore applications, such as wastewater and sewer pipelines, sliplining and cased crossings.
The HD series is suitable for light-to-medium weight carrier pipe materials, including steel, ductile, MSCL, GRE, PVC, and HDPE.
The HD, HDX and HDXT series spacers have no metal parts and are made from kwik-ZIP’s engineered thermoplastic blend with high flexural strength, high temperature resistance, low co-efficient of friction, abrasion resistance and outstanding chemical resistance.
In other words, kwik-ZIP is delivering highly durable spacers, backed by a WSA PS-324 certification.
Luckily, high quality does not necessarily mean complex. Installation of kwik-ZIP spacers is simple and efficient, without the requirement of any special tools or setup equipment, nor is there any requirement to pre-wrap pipe.
kwik-ZIP spacers load sharing suspension system allows heavy loads to be shared across multiple runners, reducing point loading and increasing the overall load capacity of the spacer.
Integrated rubber grip pads under collars also helps to prevent slippage.
The company’s large range of spacers caters for a wide range of ID/OD combinations as well as providing flexibility to deal with project alterations. The casing spacers utilise a segmented design that allows the system to be used on a range of carrier pipes from 100mm OD and beyond, with no upper limit.
kwik-ZIP’s large range of spacers caters for a wide range of carrier and casing pipe size combinations as well as providing flexibility to deal with project alterations.
The publication of the appraisal can be found at wsaa.asn.au.
For more information, visit kwik-ZIP.
This article featured in the August edition of Trenchless Australasia.
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