Choosing between an FM-200 fire suppression system and an FK-5-1-12 fire suppression system is an important decision for facilities that require reliable fire protection without the solid residue associated with conventional dry chemical extinguishing agents.
FM-200 (HFC-227ea) and FK-5-1-12, commonly associated with the trade name Novec 1230, are clean agents used in engineered gaseous fire suppression systems. Both are electrically non-conductive and are considered for protecting sensitive electronic equipment, data centers, control rooms, telecommunications facilities, and other critical environments.
However, these agents are not identical. They differ in chemical classification, environmental properties, design concentrations, system requirements, and lifecycle considerations.
The main difference between FM-200 and FK-5-1-12 is their environmental profile and chemical composition. FM-200 is a hydrofluorocarbon (HFC) agent with a comparatively high global warming potential (GWP), while FK-5-1-12 is a fluorinated ketone with a GWP below 1 in commonly cited technical data. The best choice for a project depends on its fire hazards, applicable regulations, engineering requirements, budget, and long-term supply considerations.
This guide compares FM-200 (HFC-227ea) and FK-5-1-12 (Novec 1230) across their operating principles, environmental impact, safety, system components, applications, and selection criteria.
What Is FM-200 (HFC-227ea)?
FM-200 is a widely recognized trade name for HFC-227ea, a halocarbon clean agent used in fixed fire suppression systems.
An FM-200 fire suppression system stores the agent in dedicated cylinders and releases it through engineered pipework and discharge nozzles after the configured fire detection and release conditions are met.
HFC-227ea primarily suppresses fire through heat absorption and effects on the combustion process. When the required design concentration is achieved, the agent helps interrupt the conditions that sustain combustion.
FM-200 systems are commonly considered for:
- Data centers and server rooms
- Telecommunications facilities
- Electrical rooms and control rooms
- Industrial process control facilities
- Equipment rooms containing sensitive electronics
- Archives and other areas containing valuable assets
The actual suitability of an FM-200 system depends on the protected hazard, the design concentration, enclosure conditions, occupant safety requirements, and applicable standards.
Key characteristics of FM-200
- Agent designation: HFC-227ea
- Agent category: Halocarbon clean agent
- Electrical conductivity: Non-conductive
- Solid extinguishing residue: No solid residue from the agent itself
- Fire suppression mechanism: Primarily heat absorption and interruption of combustion
- Environmental consideration: Relatively high global warming potential compared with FK-5-1-12
- System design: Requires appropriate agent quantity, cylinder selection, pipework, nozzle design, and hydraulic calculations
FM-200 is an established clean-agent technology. However, environmental requirements and applicable regulations should be evaluated when specifying it for a new installation or planning the long-term operation of an existing system.
What Is FK-5-1-12 (Novec 1230)?
FK-5-1-12 is a fluorinated ketone clean agent used in engineered fire suppression systems. It is commonly associated with the trade name Novec 1230.
FK-5-1-12 systems are designed to release a calculated quantity of agent into a protected enclosure through compatible cylinders, valves, pipework, and nozzles. Like HFC-227ea systems, they require an engineered design that accounts for the fire hazard and the conditions within the protected space.
FK-5-1-12 is considered for many of the same applications as FM-200, including data centers, electrical rooms, telecommunications facilities, archives, and critical equipment areas.
Key characteristics of FK-5-1-12
- Agent designation: FK-5-1-12
- Common trade name: Novec 1230
- Agent category: Fluorinated ketone clean agent
- Electrical conductivity: Non-conductive
- Solid extinguishing residue: No solid residue from the agent itself
- Fire suppression mechanism: Primarily heat absorption and interruption of combustion
- Environmental consideration: Very low global warming potential in commonly cited technical data
- System design: Requires compatible storage equipment, pipework, nozzles, hydraulic calculations, and enclosure assessment
For technical procurement, the designation FK-5-1-12 should be used to identify the agent. The name Novec 1230 is a familiar search term, but buyers should verify the actual agent specification, manufacturer, product documentation, and supply chain for the equipment being offered.
FM-200 vs FK-5-1-12: Quick Comparison
The following table summarizes the main differences between the two clean agents. Actual system specifications depend on the selected equipment, applicable standards, and engineered design.
| Comparison factor | FM-200 (HFC-227ea) | FK-5-1-12 (Novec 1230) |
|---|---|---|
| Chemical category | Hydrofluorocarbon (HFC) | Fluorinated ketone |
| Common designation | FM-200, HFC-227ea, HFC227ea | FK-5-1-12, FK5112, Novec 1230 |
| Fire suppression mechanism | Primarily heat absorption and combustion interruption | Primarily heat absorption and combustion interruption |
| Electrical conductivity | Non-conductive | Non-conductive |
| Solid residue from the agent | No | No |
| Global warming potential | Approximately 3,220 in commonly cited reference data | Below 1 in commonly cited reference data |
| Ozone depletion potential | 0 | 0 |
| Typical application types | Data centers, electrical rooms, control rooms, critical facilities | Data centers, electrical rooms, control rooms, critical facilities |
| Cylinder and pipework design | Must follow the selected system's approved design | Must follow the selected system's approved design |
| Hydraulic calculations | Required as applicable to the engineered system | Required as applicable to the engineered system |
| Selection considerations | Performance, availability, regulations, environmental requirements, lifecycle costs | Performance, availability, regulations, environmental requirements, lifecycle costs |
Important: GWP figures are reference values and should be verified against the applicable regulatory or technical source for the project. Product approvals, permissible uses, design concentrations, and installation requirements must be checked for the specific system and jurisdiction.
What Is the Difference Between FM-200 and FK-5-1-12 in Fire Suppression Performance?
Both FM-200 and FK-5-1-12 are used in engineered total-flooding fire suppression systems. Both can protect sensitive equipment when the system is correctly designed for the hazard.
Neither agent should be considered universally superior in fire suppression performance without evaluating the actual application.
Fire suppression mechanism
HFC-227ea and FK-5-1-12 primarily suppress fire by absorbing heat and affecting the combustion process. The design must provide the agent quantity and concentration required for the specific hazard.
The amount of agent needed is not determined by agent name alone. It depends on factors such as the fuel type, protected enclosure volume, applicable design concentration, ambient conditions, and the system manufacturer's approved design method.
Discharge performance
A system's discharge performance depends on cylinder configuration, operating pressure, valve characteristics, pipe diameters, fittings, nozzle orifices, and the approved hydraulic calculations.
A comparison should therefore use the actual technical documentation for each proposed system. It is not sufficient to compare only the agent or the nominal cylinder pressure.
Enclosure integrity
Both systems depend on achieving and maintaining the required agent concentration for the specified period. Leakage through doors, cable penetrations, ventilation openings, raised floors, ceilings, and other paths can affect performance.
Enclosure integrity must be considered during design and verified where required by the applicable standard or project specification.
FM-200 vs FK-5-1-12: Environmental Impact and GWP
Environmental performance is one of the most important differences between HFC-227ea and FK-5-1-12.
Global warming potential
Global warming potential (GWP) compares the warming effect of a substance over a specified period with that of carbon dioxide.
HFC-227ea has a comparatively high GWP. Commonly cited reference data gives a value of approximately 3,220, although the applicable regulatory source and assessment period should always be checked.
FK-5-1-12 has a GWP below 1 in commonly cited technical data. This substantially lower value can make FK-5-1-12 an attractive option for projects with strict greenhouse gas reduction targets or environmental procurement requirements.
Ozone depletion potential
Both HFC-227ea and FK-5-1-12 are generally listed with an ozone depletion potential (ODP) of zero. However, ODP and GWP measure different environmental effects. A zero ODP value does not mean that a substance has no climate impact.
Environmental regulations and long-term planning
Environmental rules affecting fluorinated gases vary by jurisdiction and can change over time. Before specifying a system, project owners should assess the rules that apply to the installation, servicing, agent replenishment, and future operation.
Environmental selection should also consider the availability of replacement agent, qualified service providers, equipment compatibility, and the lifecycle of the complete system.
Practical takeaway: When a project places a high priority on low GWP, FK-5-1-12 may be a strong candidate. FM-200 may still be appropriate for projects where the existing infrastructure, verified system performance, applicable rules, and lifecycle requirements support its use.
Is FM-200 or FK-5-1-12 Safer for Occupied Spaces?
Neither agent should be described as unconditionally safe under every exposure condition. Safety depends on the agent concentration, duration of exposure, occupancy, fire products, system design, and applicable requirements.
For both FM-200 and FK-5-1-12, an engineered system must consider:
- The design concentration required for the hazard
- Applicable exposure limits and safety margins
- Audible and visual warning arrangements
- Release delays and evacuation procedures where required
- Ventilation and post-discharge procedures
- Risks associated with smoke, combustion products, and agent decomposition
- Safe access for inspection, maintenance, and emergency response
The system must be designed and maintained in accordance with the applicable clean-agent standard and manufacturer documentation. Personnel should follow the site's emergency plan and should not re-enter a discharged enclosure until the required safety assessment has been completed.
A clean agent can reduce secondary damage associated with water or solid extinguishing agents, but it does not eliminate the hazards of a fire or the need for occupant protection.
FM-200 vs FK-5-1-12: Cylinders, Pressure and System Components
A complete clean agent fire suppression system is more than a cylinder filled with extinguishing agent. Both technologies require a coordinated arrangement of storage equipment, release devices, distribution pipework, nozzles, detection, and controls.
Cylinders and operating pressure
Cylinder capacity, agent fill quantity, operating pressure, and the number of cylinders must be selected as part of the system design.
Agnitar offers HFC-227ea and FK-5-1-12 cylinder configurations in 25 bar and 42 bar system arrangements, subject to the applicable equipment specifications. The available cylinder capacities and approvals should be confirmed against the current technical catalogue for the selected configuration.
A 25 bar or 42 bar rating alone does not establish that a cylinder or valve is suitable for a specific system. All pressure-containing components must be compatible with the design and the applicable certification requirements.
Valves and actuators
Cylinder valves control the release of the agent. Actuation may be electrical, mechanical, pneumatic, or a combination defined by the approved system design.
Valve compatibility, operating pressure, connection type, actuation method, and relevant approvals should be verified before procurement. Components should not be substituted solely because their dimensions appear similar.
Pipework and discharge nozzles
Pipework and nozzle design determine how the agent flows from the cylinders and distributes through the protected enclosure.
The engineer must account for the system configuration, pipe lengths, fittings, elevation changes, nozzle locations, and other design parameters using the applicable calculation method.
Detection and control equipment
Detection devices, suppression control panels, warning devices, manual release functions, and other interfaces must operate as one coordinated system.
The release logic should be defined in the project design documentation and tested during commissioning.
Which System Is Better for Data Centers and Server Rooms?
Both FM-200 and FK-5-1-12 may be considered for data centers, server rooms, and telecommunications facilities where water damage or solid extinguishing residue is a concern.
The choice should be based on the project's technical requirements rather than a general claim that one agent is always better.
When FM-200 may be considered
FM-200 may be considered where an established system configuration, compatible existing infrastructure, approved equipment, and available servicing support meet the project's requirements.
For an existing HFC-227ea installation, replacement or conversion should be evaluated through a formal engineering review rather than assuming that the same cylinders, pipework, and nozzles can be used with another agent.
When FK-5-1-12 may be considered
FK-5-1-12 may be considered for projects that prioritize very low GWP while requiring a clean agent system for sensitive equipment.
The proposed agent supply, system approvals, cylinder configuration, design concentration, pipework, nozzles, and long-term service arrangements should all be confirmed before the system is specified.
What should data center designers evaluate?
For either system, the design team should review:
- Protected room volume and connected spaces
- Fire hazard classification and potential ignition sources
- Required design concentration
- Cylinder location and access
- Pipework and nozzle arrangement
- Room integrity and pressure-relief requirements
- Detection, alarm, and release logic
- Occupant safety and emergency procedures
- Applicable standards and authority requirements
- Maintenance, inspection, and agent replenishment
Can an Existing FM-200 System Be Replaced with FK-5-1-12?
Potentially, but replacing FM-200 with FK-5-1-12 is not a simple cylinder-for-cylinder substitution.
The two agents have different physical properties and may require different system design parameters. Before conversion, a qualified designer should reassess:
- The protected hazard and required design concentration
- The agent quantity and cylinder configuration
- Cylinder and valve compatibility
- Pipework, fittings, and nozzle orifices
- Hydraulic calculations and discharge performance
- Detection and release controls
- Enclosure integrity and pressure effects
- Applicable approvals, standards, and regulatory requirements
- Maintenance procedures and future agent availability
The existing system should not be modified or recharged with a different agent unless the proposed configuration has been assessed and approved for that use.
For some projects, retaining and maintaining the existing system may be appropriate. For others, a new engineered system may be preferable. The decision should be based on documented technical and regulatory requirements.
Which Is More Cost-Effective: FM-200 or FK-5-1-12?
There is no universal answer to whether an FM-200 system or an FK-5-1-12 system is less expensive.
The total cost depends on more than the price per kilogram of extinguishing agent. A useful comparison should include:
- Agent quantity required for the hazard
- Cylinder capacity and number of cylinders
- Operating pressure and compatible components
- Valves, actuators, pipework, and nozzles
- Detection and control equipment
- Engineering and hydraulic calculations
- Installation and commissioning
- Required testing and maintenance
- Agent replenishment and future availability
- Environmental and regulatory requirements
- Expected lifecycle costs
A lower initial equipment price does not necessarily mean a lower total cost of ownership. Equally, a low-GWP agent should not be selected without confirming that the complete system meets the project's technical requirements.
For an accurate quotation, buyers should provide the protected enclosure dimensions, hazard type, project location, applicable standards, available drawings, and any existing system details.
How to Choose Between FM-200 and FK-5-1-12
Use the following checklist when comparing clean agent fire suppression proposals.
| Decision factor | What to verify |
|---|---|
| Fire hazard | Fuel type, ignition sources, and required design concentration |
| Protected enclosure | Volume, connected spaces, leakage paths, and ventilation |
| Environmental requirements | Applicable GWP limits, regulations, and project targets |
| Occupant safety | Exposure assessment, alarms, evacuation, and re-entry procedures |
| System configuration | Cylinder capacity, pressure, valves, pipework, and nozzles |
| Technical documentation | Calculations, data sheets, drawings, and operating instructions |
| Product approvals | Exact approvals and certifications applicable to the proposed equipment |
| Installation | Qualified design, installation, and commissioning resources |
| Lifecycle costs | Maintenance, inspection, servicing, and agent replenishment |
| Supply chain | Verified agent identity, equipment availability, and long-term service support |
The correct choice is the system that satisfies the complete set of engineering, safety, environmental, regulatory, and commercial requirements for the project.
FM-200 vs FK-5-1-12: Frequently Asked Questions
Is FM-200 the same as HFC-227ea?
FM-200 is the commonly used trade name associated with HFC-227ea. HFC-227ea is the chemical agent designation used in technical documentation.
Is Novec 1230 the same as FK-5-1-12?
Novec 1230 is the trade name commonly associated with FK-5-1-12. For technical procurement, confirm the exact agent designation and the documentation for the product being supplied.
What is the main difference between FM-200 and Novec 1230?
The main differences are chemical composition and environmental profile. FM-200 is HFC-227ea, a hydrofluorocarbon with a comparatively high GWP. FK-5-1-12 is a fluorinated ketone with a GWP below 1 in commonly cited reference data.
Which has a lower GWP: FM-200 or FK-5-1-12?
FK-5-1-12 has a substantially lower GWP than HFC-227ea in commonly cited technical data. Always check the relevant regulatory source and assessment basis for a project-specific comparison.
Are FM-200 and FK-5-1-12 electrically conductive?
Both agents are considered electrically non-conductive. However, suitability for protecting energized equipment depends on the hazard, design concentration, system configuration, and applicable requirements.
Do FM-200 and FK-5-1-12 leave residue?
Neither agent leaves solid extinguishing residue from the agent itself. Smoke, combustion products, heat, and other fire-related contamination may still require cleanup or equipment repair.
Can FM-200 and FK-5-1-12 use the same cylinders and valves?
Not automatically. Compatibility must be confirmed for the exact cylinder, valve, operating pressure, agent, and approved system configuration.
Are 25 bar and 42 bar systems available for both agents?
Agnitar lists 25 bar and 42 bar configurations for its HFC-227ea and FK-5-1-12 cylinder offerings. Buyers should confirm the current capacities, approvals, and compatibility in the relevant technical documentation.
Which clean agent is best for a data center?
There is no universally best agent. FM-200 and FK-5-1-12 may both be suitable depending on the fire hazard, enclosure, environmental requirements, system design, applicable standards, and lifecycle considerations.
Does an FM-200 system require hydraulic calculations?
Yes. The system must be designed to deliver the required agent quantity and distribution. The applicable calculation method should be used to determine compatible pipework, valves, and nozzle configurations.
Does an FK-5-1-12 system require room integrity testing?
Enclosure integrity is an important design consideration for total-flooding systems. Testing should be performed where required by the applicable standard and project specification.
What information is needed for an FM-200 or FK-5-1-12 quotation?
Provide the protected enclosure dimensions and volume, hazard type, project location, applicable standards, available drawings, preferred agent if known, and details of any existing system. Final agent quantity and equipment selection should be confirmed through engineering assessment.
Conclusion: FM-200 vs FK-5-1-12
FM-200 (HFC-227ea) and FK-5-1-12 (commonly associated with Novec 1230) are both clean agents used in engineered fire suppression systems for critical environments.
FM-200 is an established halocarbon technology, while FK-5-1-12 offers a substantially lower GWP in commonly cited reference data. However, the environmental profile is only one part of the selection process. Fire hazard, required concentration, cylinder configuration, hydraulic calculations, enclosure integrity, occupant safety, approvals, maintenance, and long-term supply must also be considered.
The most appropriate system is the one that meets the project's documented engineering and regulatory requirements—not simply the one with the lowest agent price or the most attractive headline specification.
Explore AGNITAR Clean Agent Fire Suppression Systems
AGNITAR supplies engineered fire suppression solutions and components for critical facilities and industrial applications.
Explore our product range:
- AGNITAR 200: FM-200 (HFC-227ea) fire suppression systems
- AGNITAR 1230: FK-5-1-12 clean agent fire suppression systems
For a project-specific quotation, share the protected enclosure details, fire hazard, applicable standards, and available design documentation with the AGNITAR team.
👉 Contact Agnitar today to discover the best fire suppression solution for your critical environment. Call/Whatsapp/Telegram: +90 535 371 40 09 info@agnitar.com
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