Gas Fire Suppression
Calculator

Estimate clean-agent and CO₂ quantities for total-flooding systems and size cylinder banks across standard pressures and cylinder volumes — grounded in NFPA 12 & NFPA 2001.

CO₂ · NFPA 12 HFC-227ea · 25/42/70 bar IG-55 · 200/300 bar IG-541 · 200/300 bar

Prepared & developed by Mohammad Khedmati

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Gas Fire Suppression Calculator

Total flooding design per NFPA 12 (2022) for CO₂ and NFPA 2001 (2022) for clean agents

1 — Select Extinguishing Agent

CO₂

Carbon dioxide — NFPA 12 — high pressure

HFC-227ea

FM-200 — NFPA 2001

IG-55

Argonite (50% N₂ / 50% Ar)

IG-541

Inergen (N₂ / Ar / CO₂)

2 — Protected Space Data

Length (m) Width (m) Height, floor to ceiling (m) Altitude above sea level (m)

Atmospheric correction — Table 7.3.3.3

Minimum design temperature (°C)

Lowest anticipated space temperature

Fixed impervious structures (m³)

Deducted from gross volume

False-ceiling void height (m) Void above false ceiling is also protected

Raised-floor void height (m) Void below raised floor is also protected

3 — Design Parameters

Fire class / hazard type Design concentration C (%)

System pressure

Filling ratio (kg/L)

4 — Custom Cylinder Sizes

Cylinder Size 1 (L) Cylinder Size 2 (L) Cylinder Size 3 (L)

Gas Fire SuppressionCalculator

1 — Select Extinguishing Agent

2 — Protected Space Data

3 — Design Parameters

4 — Custom Cylinder Sizes

Calculation Results

Gas Fire Suppression
Calculator