SOLAS II-2 • FSS Code Chapter 5 • CO₂ Quantity • Cylinder Bank • Flooding Time • Alarms • Controls • Maintenance
Fixed CO₂ Fire-Extinguishing Cylinder Quantity, Flooding Concentration & Release Time Tool
Screen required free-gas quantity, cylinder count, verified bank charge and release-time capability, then use Advanced for multiple protected spaces, selector and sealing readiness, alarms, maintenance, hydrostatic testing and service planning.
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Need much more depth? Click Advanced above.Advanced adds protected-space rows, low-pressure storage, alarms, selector/sealing status, maintenance, hydrostatic-test scope, hose age, valve inspection and service cost.Fast10 primary inputs
Core answerMass + bottles + release time
VisualBank coverage + discharge curve
Single Protected Space
For machinery spaces, enter both the reduced-casing volume and the entire volume including casing. Starting-air receiver free-air volume is added to the machinery-space gross-volume bases.
m³, machinery basis.
m³.
m³ free air, machinery only.
kg.
% of nominal.
kg/min.
Vessel & Storage Basis
kg.
% above statutory minimum, planning only.
Fixed FSS conversion: 0.56 m³ free CO₂ per kg.
Protected-Space Register
Each row is calculated independently; the largest required mass governs the shared bank. Space names are not sent through Tool Data.
| Space | Category | Reduced m³ | Full m³ | Air rec. m³ | Accessible | Custom gas % | Custom frac % | Custom min | Req. kg | Cyl. |
|---|
Bank Charge, Release & Controls
kg/min.
seconds.
Release Controls & Operational Readiness
Maintenance & Service
years.
years, max 10 in this screen.
Service Campaign Cost
%.
Fire-safety limitation: This tool does not size piping, nozzles, manifolds, orifices or selector valves; prove agent distribution; authorize release; or replace approved hydraulic calculations, vessel fire-control plans, flag/class approval, manufacturer instructions, SMS, surveyor or competent service technician. CO₂ is lethal to personnel.