HFC Fire Suppression Agent 1 1 1 2 3 3 3 Heptafluoropropane

1,1,1,2,3,3,3 Heptafluoropropane, commonly known as HFC 227ea, is a widely used HFC fire suppression agent. Many fire protection engineers reference its chemical name when reviewing safety datasheets or completing specification documents for clean agent systems. This HFC 227ea gas was brought to market as a practical replacement for ozone-depleting halon, offering reliable fire protection for assets that cannot withstand damage from water or dry powder fire control methods.

 Key Benefits:

● Fast, Residue-Free Fire Suppression

● Proven Performance

● Safe for Occupied Spaces

● Broad System Compatibility

● Protects Sensitive Equipment

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HFC 227ea works primarily through heat absorption. Once discharged from pressurised storage cylinders, the liquid agent instantly vaporises into gas. The HFC fire suppression agent pulls heat away from the combustion zone and breaks the chemical reaction chain needed to sustain fire. It is suitable for Class B flammable liquid fires and Class C live electrical fires, the two most common risks inside server rooms, electrical vaults and industrial control cabinets.

Clean gaseous fire extinguishing agent, the mainstream alternative to Halon 1301, product compliant with GB 18614 and NFPA 2001

1. Fire Extinguishing Mechanism: Dual Flame Suppression via Chemical and Physical Effects for Rapid Fire Knockdown

 Chemical inhibition: Captures free radicals in flame combustion and interrupts the chain reaction (dominant effect)

 Physical cooling: The agent absorbs massive heat upon vaporization, lowering flame temperature

 Low design concentration for fire suppression: generally 6.25%～9%. It rapidly puts out Class B, Class C fires, live electrical fires, and surface fires of solid combustibles (applicable to gas fires where gas supply can be cut off)

2. Clean and Non-Damaging, Protecting High-Precision Assets

 Stored as liquid at ambient temperature. It fully vaporizes into colorless and transparent gas after discharge. No powder, oil film or residue remains. Ventilation is sufficient to remove the gas, resulting in extremely low post-fire cleanup costs.

 Excellent electrical insulation performance. Non-conductive and non-corrosive. It will not damage servers, PCBs, energy storage cabinets, communication equipment, precision instruments, archives and other high-value assets.

3. High Human Safety, Suitable for Computer Rooms with On-Site Personnel

 NOAEL (No Observed Adverse Effect Level): 9%; LOAEL (Lowest Observed Adverse Effect Level): 10.5%. The design concentration of conventional engineering projects is below NOAEL, allowing safe evacuation of personnel within the protected enclosure.

 Note: A small amount of HF will be generated by thermal decomposition of the agent under high fire temperature. It is required to control fire suppression duration and implement adequate ventilation.

4. Environmental Performance: ODP=0, No Ozone Depletion

 Contains no chlorine or bromine elements. ODP=0, does not deplete the ozone layer, and serves as a clean fire agent alternative to Halon.

 Atmospheric lifetime: approximately 31–42 years; moderate GWP. It meets environmental access requirements for fire projects in most regions. Attention shall be paid to HFC control policies of target countries for foreign trade projects.

5. Advantages in Storage, Transportation and System Application

 Stored as liquefied gas under pressure at room temperature. Gas cylinders occupy small space with high filling density. The medium can be transported over long distances through pipe networks, suitable for reconstruction and new construction of total-flooding gaseous fire suppression systems.

 Stable physicochemical properties and long storage life. The vaporized gas can uniformly fill the sealed protected space after discharge, delivering consistent fire suppression performance.

6. Compliance and Certifications

 Domestic: GB 18614 standard for fire extinguishing agents, GB50972 code for gaseous fire suppression systems

 International: NFPA2001, listed on EPA SNAP program. UL/FM certifications are available to support overseas B-end projects (data centers, BESS energy storage systems, power distribution rooms)

Frequently Asked Questions: Procurement of HFC 227ea (1 1 1 2 3 3 3 Heptafluoropropane)