Step-through NFPA 13 hydraulic calculation for a branch-line sprinkler system using the density/area method. Configure hazard occupancy, design area, density, and pipe material. Walks through the most-remote-area hydraulic calc: K-factor flow at each head (Q = K√P), Hazen-Williams pressure loss along the branch line and cross main, hose stream allowance, and final demand point (GPM at PSI). Pass/fail against available system pressure.
NFPA 2001 clean agent quantity calculator and door fan (room integrity) test predictor. Input protected volume, design concentration, agent type (FM-200, Novec 1230, IG-55), and enclosure leakage area. Outputs required agent quantity (lb), predicted concentration at end of hold time, and pass/fail against minimum design concentration.
UL 300 commercial kitchen hood suppression layout tool. Input appliance types (fryer, char broiler, range, griddle), dimensions, and BTU ratings. The planner calculates agent quantity, required nozzle count and positions per UL 300 listing data, and gas valve interlock requirements per NFPA 96.
Density/area method for 6 hazard classes. Total demand GPM, hose stream allowance, and residual pressure requirement.
Step-through NFPA 13 branch-line hydraulic calculation using Hazen-Williams. Most-remote area analysis, plot demand vs. supply curve.
More fire suppression articles coming soon.