Water, Sewage & Effluent May-June 2018 | Page 18

“With three companies working on that project, we developed a really good working relationship; with collaboration from all parties, working on problems together and finding solutions together.” Kennedy Sithole, Saint-Gobain PAM Product – Hydroclass pipe range The ductile iron pipes are socket and spigot pipes, manufactured by a centrifugal process in accordance with standards ISO 2531-2009 and EN 545-2010. External coating: 200g/m² metallic zinc with synthetic coating. Internal lining: Blast furnace slag cement (BFSC) mortar lining. Challenges The project took place in a desert- like region of South Africa, where extreme temperatures are common. The pipes supplied will withstand the heat. Sithole adds, “Desert or forest, the products, the external protection, and pipe assembly are designed for all climates and all situations. We had Standard joint in EPDM for the pipes and Tyton gaskets for the fittings. The gaskets are manufactured in EPDM elastomer suitable for potable water in accordance with ISO 4633- 2002 and EN 681-1. The fittings are internally lined by a fusion bonded epoxy, with a minimum average thickness of 250 microns according to EN 14901:2006. to have the high-pressure pipes and related fittings especially made. “In addition, because the pedestals that hold the pipe above the ground were already erected to receive the pipes, we had to ensure that the pipes were supplied to the correct length — the span between pedestals.”