Chemical Handling Pipework: Sch. 80 PVC, CPVC & Gardus from Waterworks

When it comes to chemical handling in New Zealand’s industrial sector, choosing the right pipework is crucial for safety, durability, and efficiency.  

At Waterworks, we specialise in providing Schedule 80 (Sch. 80) PVC and CPVC pipe and fittings—two of the most reliable solutions for chemical transport and processing in demanding environments. As well as Gardus, our innovative dual containment piping system with integrated leak detection, designed to deliver enhanced safety and peace of mind for critical chemical applications. 

Sch. 80 PVC is known for its industrial-grade wall thickness and excellent chemical resistance, making it ideal for handling a wide range of acids and alkalis. It’s widely used in municipal water and wastewater treatment plants, as well as in food and beverage processing for centralised cleaning systems. Its robust construction ensures system integrity where reliability is non-negotiable. 

CPVC (Chlorinated Polyvinyl Chloride) undergoes an additional chlorination process, giving it enhanced resistance to higher temperatures—up to 93°C—and making it particularly suitable for transporting hot, corrosive, or acidic fluids.  

CPVC is often the material of choice for process piping in chemical plants, hot and cold water lines, and situations where elevated temperatures or aggressive chemicals are present. 

Both Sch. 80 PVC and CPVC are lightweight, easy to install, and offer corrosion resistance superior to many metals, reducing maintenance and downtime.  

Gardus (Dual Containment Hose) 

Adding to our innovative range,  Gardus  is Waterworks’ advanced dual containment piping system. Gardus combines the best features of existing dual containment products in a more compact and manageable form, while integrating a highly sensitive leak detection system. This system can detect even the smallest chemical leaks, triggering visible and audible alarms and automatically shutting down system procedures to protect both workers and the environment. Gardus is 48% lighter than rigid pipe, reduces installation costs, and significantly lowers the need for catchpots. Developed specifically for chemical handling applications, it sets a new standard in environmental and worker safety for New Zealand industry.

Waterworks stocks a comprehensive range of pipes, fittings, and valves, ensuring New Zealand industries have ready access to the right products for their specific needs, with technical support and same-day dispatch on most orders. 

Typical Applications in New Zealand Industry: 

• Water and wastewater treatment plants 

• Chemical processing facilities 

• Food and beverage manufacturing (cleaning and sanitising systems) 

• Industrial process water systems 

• Chemical dosing applications (Gardus) 

By partnering with Waterworks, you gain access to industry-leading expertise, a vast inventory, and end-to-end support for your pipeline projects. 

Explore the full range of Sch. 80 PVC, CPVC, and Gardus products or get expert advice at www.waterworksnz.co.nz

Comparison Chart: Sch. 80 PVC, CPVC & Gardus for Chemical Handling 

For tailored solutions and technical support visit www.waterworksnz.co.nz.