This appraisal is for a range of DIMAX ductile iron pipes manufactured to AS/NZS 2280:2014 Ductile iron pipes and fittings manufactured by Xinxing Ductile Iron Pipes Company Ltd in China. This Issue 2 is to include TYTON-LOK® restrained joints in sizes DN 100 to DN 375 for PN16 pressure classifications.
The ductile iron pipes with TYTON® spigot and socket elastomeric joints are manufactured in nominal sizes from DN 375 to DN 750 with PN20 pressure classification, DN 100 to DN 750 with PN 35 classification and DN 100 to DN 750 with Flange Class classification. DN 80 pipe is also available as Class K12, however is not included in the scope of this appraisal.
The pipes are either internally lined with sulphate resistant cement mortar (SR) for transport of drinking or non-drinking water, calcium aluminate cement mortar (CA) for transport of sewerage and aggressive non-drinking waters with pH >4<12 or polyurethane (PU) for transport of sewerage and aggressive waters with pH >1<13.
An epoxy seal coat (SC) is optionally available on SR cement mortar linings for all pipe sizes.
The external coating options are metallic zinc (Zn) or zinc-aluminium-rare earth alloy (ZnAlRE) with a two-part epoxy finishing layer; black for Zn coated SR lined pipes and ZnAlRE coated PU lined pipes; blue for ZnAlRE coated SR lined pipes. The CA lined pipes are supplied with a ZnAlRE coating with a red coloured finishing layer.