Project: Nowra Wastewater Treatment Plant, Southern Incoming Mains – Stage 1 Terara NSW.

Client: Shoalhaven City Council

Carrier Size: 2x DN450 HDPE x DN560 HDPE

Spacer Model: HDX 38

Kwik-ZIP HDX38 casing spacers were utilised on three 60m sections of the new parallel wastewater pressure mains to the new Nowra Wastewater Treatment Plant at Terara, NSW.

The 3 new cased crossings run under the full road reserve for the proposed future East Nowra Sub-Arterial Link Road (ENSA) project which is still in the early planning stage.

kwik-ZIP’s HDX 38 spacers were installed at 2m intervals to support the carrier pipes during installation and protect them from being damaged.

As the cased pipelines were not being grouted the HDX38 spacers were required to support the full weight of the pipe and water for the life of the installation.

Kwik-ZIP’s spacers have no metal parts and are made from Kwik-ZIP’s engineered thermoplastic blend – a high-grade thermoplastic that is flexible, extremely tough and has a low coefficient of friction. The spacers simple and efficient installation process require no special tools.

Kwik-ZIP HDX Spacers are approved by WSAA and meet the requirements of their Product Specification PS-324 Casing Spacers.

“Kwik-ZIP’s customer service & technical support was excellent – the spacers were supplied at very short notice from their Sydney warehouse and the installation crews found them quick & easy to install” – Rod Dean -Engineering Designer – Shoalhaven Water