FM200 (HFC-227ea) is a clean agent fire suppressant widely used to protect high-value
assets. It is a colorless, odorless gas that extinguishes fire primarily by heat absorption
(cooling the flame) and interrupting the combustion chemical reaction. It discharges in 10
seconds or less, minimizing damage to critical equipment.
Novec 1230 (FK-5-1-12) is a next-generation chemical clean agent. Stored as a liquid but
discharged as a gas, it extinguishes fire by removing heat. It is famous for its exceptional
environmental profile, possessing zero Ozone Depletion Potential (ODP) and a Global Warming
Potential (GWP) of less than 1.
It uses a solid compound (containing potassium nitrates/salts) which, upon activation,
transforms into a rapidly expanding gas-like aerosol. This aerosol contains micron-sized
particles that interfere with the fire's chemical chain reaction (trapping free radicals)
without depleting oxygen levels. It is highly effective and compact.
Extremely effective. Gaseous systems (FM200/Novec) appear to extinguish fires essentially
immediately upon reaching concentration (typically within 10 seconds). Aerosol systems are
also highly efficient, capable of suppressing fires with a very small mass of agent compared
to traditional CO2 or inert gases.
Novec 1230 is the most eco-friendly chemical agent with a GWP < 1 and
atmospheric lifetime of 5 days. Aerosol systems are also
environmentally friendly with negligible ODP and GWP. FM200 has a
higher GWP (~3500) but is non-ozone depleting and is still widely accepted where space
is a premium, though Novec is often preferred for green initiatives.
When designed correctly (at safe concentrations well below the NOAEL - No Observed Adverse
Effect Level), FM200 and Novec 1230 are considered safe for use in occupied spaces. They do
not deplete oxygen to lethal levels. However, safety precautions, alarms, and delays are
always mandatory to allow evacuation before discharge.
Nothing adverse. Both FM200 (HFC-227ea) and Novec 1230 (FK-5-1-12) have zero Ozone
Depletion Potential (ODP). They do not damage the ozone layer.
The standard requirement (per NFPA 2001 / BS EN 15004) is typically 10
minutes. This holding time ensures that the gas concentration remains high
enough to prevent fire re-ignition while emergency services respond. Room integrity testing
is performed to verify this.
It depends on the scale. For small volumes or retrofits, Aerosol or
Fire Stickers are often most cost-effective as they require no piping. For
medium-to-large server rooms, FM200 has traditionally been the cost-leader in chemical
gases, followed closely by Novec 1230. For extremely large volumes, Inert Gas systems can
become more economical due to cheaper agent cost despite higher hardware costs.
Generally, no. While they are similar, the agents have different flow
characteristics, weights, and operating pressures. This usually requires different nozzle
drillings, fill densities, and potentially different pipe sizes or schedules. A system
conversion requires re-calculation and re-certification by a qualified engineer.