SIEX-HC™ 227 and SIEX-HC™ 227 S-FLOW

SIEX-HC™ 227 is known for its versatility in protecting the widest range of hazards and for its combination of efficiency, safety and low cost. It works by total flooding, with a very rapid discharge in less than 10 seconds. It is suitable for use in occupied areas because its extinguishing method does not reduce oxygen.


Its effectiveness in such a range of circumstances is due to the extinguishing agent used, DuPont FM-200®, which is suitable for flammable liquids, combustible solids and electrical hazards. The combination of the components of the kit enables the most reliable and cost-effective protection.

at 25 bar (360psi) and 42 bar (610psi).

This system is pressurized with dry nitrogen, providing different pressures depending on the requirements of the hazard. SIEX-HC™ 227 systems operate at 25 bar and 42 bar. The different working pressures adapt to variations in the installation properties, thus covering many different hazards with the highest performance quality.

 SIEX-HC™ 227 S-FLOW was developed and manufactured by SIEX as an enhancement to traditional

 halocarbon gas systems, optimizing its features to meet the most demanding expectations. The

 development of the new S-FLOW valve means that a wider range of pressures can be used. In addition to the

 usual 25 and 42 bar at which the gas is commonly discharged, this new technology allows working pressures

 of 32, 34, 50, 55 even 60 bar.


They are optimized for the protection of various isolated hazards using our selector valves. All these systems have recognized VdS, FM and UL certification, with maximum international prestige. The expertise of our designers and engineers ensures the quality of each project. We advise on every project, always offering the most suitable solution for each specific need. We have the most advanced hydraulic calculation programs including SIEX-HC™ 227 specific programming approved by VdS-FM-UL. The system design meets the ISO 14520, UNE 15004-5 and NFPA 2001 standards, on which these system calculation requirements are based. 



Museums and art galleries 

Telecommunication systems


Petrochemical facilities

Computer Rooms

Archives and libraries


Electrical cabinets and substations 

Control Rooms 

Marine hazards

Servers (DPCs)

False floors and ceilings.


Product Data

Very stable behavior.

Rapid extinguishing time with discharge in less than 10 seconds.

High efficiency, low extinguishing concentration

Applicable in occupied areas

Low storage pressure with low noise discharges.

Minimum container footprint.

Leaves no residue after discharge.

Electrically non-conductive

No damage to the ozone layer