A useful research report has been published by ODPM to provide information on the limitations of fire-rising mains, including wet and dry risers complying with BS 5306 Part 1: 2006.
The report examines a range of pumps, nozzles, and hydraulic calculations to determine the pressure loss through the pipe.
The Canute - FHC hydraulic calculation software can perform the same pressure-loss calculations presented in this report, which may help installers and designers verify their designs.
You can get a full copy of the ‘Hydraulic Calculation of Wet and Dry Risers, Hoses and Branches': odpm_dry_risers_hydraulic_calculation
