FireCalc Pro –AS Fire Standard

AS 2118 fire sprinkler hydraulic calculator for engineers. BFP, tank & PDF.

FireCalc Pro is the professional hydraulic design tool for fire protection engineers, hydraulic consultants, and building certifiers calculating town main fire sprinkler systems to Australian standards.

⚡ INSTANT HYDRAULIC CALCULATION
Enter your hazard class, pipe sizes, and site data — FireCalc Pro calculates the complete pressure loss budget and duty point in real time:

✔ Total design flow — N × q × 1.12 (AS 2118.1 Cl. 5.2 multiplier applied automatically)
✔ Static head loss (height above town main connection)
✔ Hazen-Williams friction loss — GF main line, riser, and topmost floor pipework
✔ BFP (Backflow Prevention Valve) pressure loss — DN65, DN80, DN100, DN150, DN200
✔ SCV (Sprinkler Control Valve) equivalent-length friction loss
✔ Residual pressure at most unfavourable head
✔ Combined sprinkler + hydrant duty flow
✔ Water storage tank sizing — run time × buffer per selected standard

🔥 ALL HAZARD CLASSIFICATIONS
LH Resi · LH E.C Resi · LH Std · OH1 · OH1 E.C · OH2 · OH2 E.C · OH3 · OH3 E.C · OH3 Special · OH3 Special E.C · High Hazard Process (density × area) · High Hazard Storage (K-factor: Q = N × K × √P)

📐 MULTIPLE DESIGN STANDARDS
Instantly switch between:
• AS 2118.1 — General building sprinklers, town main (×1.12 multiplier, ×1.2 tank buffer)
• AS 2118.4 — Residential & domestic (×1.00, 30 min fixed run)
• FPAA 101H — Hydrant-fed residential (×1.00, 30 min, 70 kPa min)
• FPAA 101D — Domestic mains supply (×1.00, 10 min, 50 kPa min)

Each standard automatically applies its design multiplier, tank buffer, run time, and minimum operating pressure.

💧 HYDRANT FLOW TEST ANALYSIS
Record field hydrant flow test readings and plot supply curves. FireCalc Pro linearly interpolates available pressure at your exact duty flow and gives an instant ADEQUATE / DEFICIENT verdict with the pressure margin.

📄 PROFESSIONAL PDF REPORTS
One-tap PDF generation for client submissions and DA packages:
• Cover page with project info, duty point, and status badge
• Full pressure loss table (components A through F with reference values)
• Water storage derivation with full formula breakdown
• BFP size comparison table
• Supply curve chart with duty point crosshair
• Pass/fail supply evaluation with pressure margin

📁 PROJECT MANAGEMENT
Save and reload multiple projects. Import site parameters from JSON files. All data stored locally — no account, no cloud, no subscription.

Designed specifically for the Australian fire protection industry. Calculations verified against the AS 2118.1 Town Main spreadsheet methodology.