Supreme cPVC SDR 9 PIPE & FITTINGS

SDR 9 Pipe & Fittings is the heavier-duty SDR 9 range within the Supreme Lifeline C-PVC Hot & Cold Water System, offering a lower dimension ratio (thicker wall relative to diameter) for higher working-pressure applications than the standard SDR13.5/SDR11/Schedule range. It includes pipes and a matching set of fittings, all manufactured in CPVC and solvent-weld jointed for a fully bonded, leak-free hot and cold water distribution system.

• Q: How is SDR 9 different from the standard SDR13.5/SDR11 range?
A: SDR (Standard Dimension Ratio) compares pipe diameter to wall thickness. A lower SDR number means a thicker wall relative to diameter, giving SDR 9 pipe and fittings a higher pressure rating than SDR13.5/SDR11 for the same nominal size.
• Q: Can SDR 9 pipes be joined to standard SDR13.5/SDR11 fittings?
A: For a rated, leak-proof joint, pipes and fittings should be matched within the same SDR/Schedule class as specified by Supreme; consult the technical data sheet or a Supreme Pipe dealer before mixing classes.
• Q: Where is SDR 9 typically used?
A: It is used where higher working pressures are expected, such as multi-storey riser lines, pressurised hot water systems, and commercial installations.