Inergen / IG-541


INERGEN agent is composed of three naturally occurring gases found in the air we breathe - nitrogen, argon and a small amount of carbon dioxide, which improves human safety. Fires are suppressed quickly with no residue to clean up. INERGEN agent's ozone depletion level, global warming potential and atmospheric lifetime are all ZERO. Because it is not a synthetic chemical, it has not been banned or restricted for use by any country. It is listed and approved by governmental, nationally and internationally recognized testing laboratories.

inergen2Ansul Inergen clean agent fire suppression systems protect enclosed areas where there is a need for quick reaction to a fire, where people may be present, where fire may strike day or night, and where damage from conventional agents cannot be tolerated.

The Ansul Inergen Fire Suppression System is a pre-engineered, stored pressure with a fixed nozzle distribution network. It is listed with Underwriters Laboratories, Inc. (UL). The
system is capable of automatic detection and actuation and/or remote manual actuation. Additional accessories are available for shutting down electrical power to equipment and shutting down the flow of gas lines.

The detection portion of the fire suppression system allows for automatic detection by means of specifically rated mechanical fusible links or electric thermal detectors. The fire suppression system has capabilities for total flooding, local application – tankside, and local application – overhead.

Applications That Benefit From Inergen Fire Suppression Systems:

  • Automated Tape Storage Libraries
  • Computer And Data Processing Facilities
  • Cultural And Historical Sites
  • Hospital And Major Medical Facilities
  • Marine/Offshore/ Naval
  • Museums And Art Galleries
  • Power Generation Facilities
  • Telecommunication Facilities
  • Industrial Applications:
    • Hazardous Storage Buildings
    • Dip Tanks
    • Paint Lockers
    • Flammable Liquid Storage Facilities
    • Stock Rooms
    • Printing Machines
    • Mixing Tanks
    • Electrical Motors
    • Pumps
    • Switchgear Rooms
    • Indoor Transformers
    • Wood Finishing Operations

INERGEN is Better For The Environment

The production of Halon 1301 was banned in 1993, a direct result of its negative effects on the ozone layer. We engineered INERGEN to be environmentally kind from the very start. INERGEN is nonsynthetic, made exclusively of gases we already breathe: nitrogen, argon, and carbon dioxide. Once discharged, it simply returns to the atmosphere in its natural state. And because it poses no ozone depletion or global warming potential, INERGEN will never be subject to future legislative bans.

Flexibility Is Already Built In

INERGEN agent is stored as a gaseous mixture in DOT-approved steel cylinders filled to nominal capacities of 200 to 435 cu. ft. (5.7 to 12.3 cu. m). Available in four sizes, you can choose to install your cylinders either vertically or horizontally, allowing for a design that requires the fewest number of cylinders and the lowest cost. You then have a choice of setting up your cylinders to open electrically, pneumatically or manually, depending on your need.inergen3


In minutes, fire and the attempts to put it out can destroy the equipment that keeps your operation in action. And yet, without the right defenses in place - those that protect people, property and the environment - many businesses are putting themselves at needless risk every day. Others, however, have an INERGEN® system at the ready.

Created as an ozone-safe replacement for Halon 1301, INERGEN is the nucleus of ANSUL's contemporary approach to fire protection: protect lives, protect property and protect the environment.

Clean, non-conductive INERGEN is a natural fire suppression agent particularly suited to areas where damage from conventional agents cannot be tolerated, such as sensitive data storage, information processing and systems operation electronics. In addition, many archival organizations use INERGEN to protect valuable, irreplaceable items such as artwork, historic documents and antiquities.


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