Sprinkler Hydraulic Calc

About this app

Sprinkler Hydraulic Calc helps fire protection professionals calculate sprinkler system demand using the NFPA 13 density/area method. Built for fire protection engineers, designers, and inspectors working on commercial and industrial projects. WHAT IT CALCULATES - Sprinkler demand (gpm) using density/area method - K-factor flow at any pressure (Q = K * sqrt(P)) - Number of operating sprinklers from design area and coverage - Total system demand including hose stream allowance - Density and design area from NFPA 13 curves NFPA 13 COMPLIANT All calculations follow NFPA 13 (current edition) density/area curves, K-factor table, and hose stream demand requirements. Built-in lookup tables for Light, Ordinary Group 1 & 2, and Extra Hazard Group 1 & 2 occupancies. HAZARD CLASSIFICATIONS - Light Hazard (LH) - Ordinary Hazard Group 1 (OH1) - Ordinary Hazard Group 2 (OH2) - Extra Hazard Group 1 (EH1) - Extra Hazard Group 2 (EH2) FEATURES - Works 100% offline - Save calculations to history - Export professional PDF reports - English and Spanish (en/es) - Light and dark themes (in-app purchase) - Material Design 3 interface - Override individual parameters (density, heads count, hose demand, coverage) PRO VERSION ($2.99) Remove ads, get unlimited calculations, and unlock dark theme. PART OF FIRETOOLS SUITE Sprinkler Hydraulic Calc is part of the FireTools collection of professional calculators for fire protection specialists. Contact: support@tradetools.dev Privacy: https://tradetools.dev/privacy-policy.html OPTIONAL PRO UPGRADE - $2.99 ONE-TIME IN-APP PURCHASE The following features require a separate one-time in-app purchase. They are not required to use the calculator: - Unlimited saved calculation history - PDF export of results - Dark theme - Ad-free experience

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1. First observed Oct 16, 2026 · 4:59 PM $0.99