Not all pipes in a water network will or do require a class IV solution. There are a range of problems you can solve with a class I, II, or III relining. Class IV is not the only way to rehabilitate and extend the life of in-situ assets. WPS are the certified Resiline 320 distributor and applicators for AU/NZ and we are always here to answer any of your questions.
Ask the Professor? Question: What is the technical envelope for Resiline 320? Response: Resiline 320 has an 8-hour recoat window and a 60-minute return to service, without the need for flushing with gallons of clean water. A Resiline 320 liner, ranging from 1 to 14mm in thickness, can be applied to pipes with diameters from 6 to 42 inches, allowing for same-day or next-day return to service. Resiline 320 offers outstanding short and long-term mechanical properties, enabling quick construction of AWWA CLASS I to IV liners with minimal public and business disruption, and without needing a temporary water bypass. To select the appropriate AWWA liner class, owners or engineers must define performance requirements, assess the host pipe's deterioration, and identify potential failure modes, such as corrosion holes or ring fractures. For water quality and asset life extension, an AWWA CLASS I to III Resiline 320 liner is a cost-effective choice. If the host pipe exhibits minimal external and/or internal corrosion and breaks, then a CLASS I to III Resiline 320 would be a highly cost-effective option. Hosts pipes that are leaking and severely corroded (steel and thin-walled ductile iron) or have a high annual ring break history (i.e., Cast and Asbestos Cement) may require a CLASS IV liner or replacement of the main. Since most pipes in a water main network will not meet these Class IV requirements, significant cost, time, and public disruption savings can be achieved by installing a Resiline 320 Class II or III liner. Contact SIPP Americas to learn more about our high-quality resins and cost-effective pipe rehabilitation solutions, including the potential use of Resiline 320 for your upcoming projects. We are also seeking additional qualified applicators who are committed to effectively addressing leaks and enhancing the longevity of water pipes.