IG-100 Nitrogen Fire Suppression Systems

Explore Jianan IG-100 nitrogen fire suppression systems for critical enclosures. Compare 200 bar, 300 bar, single-zone, and multi-zone configurations.

Get in Touch

Nitrogen Fire Suppression for Critical Enclosures

Jianan Fire Protection Technology supplies IG-100 fire suppression systems for enclosed spaces where residue-free fire protection is required.

IG-100 uses nitrogen to reduce oxygen concentration below the level needed to sustain combustion. It is electrically nonconductive, leaves no residue, and contains no halocarbon agent.

Available options include 200 bar and 300 bar systems, single-zone and multi-zone configurations, and main-and-reserve cylinder-bank arrangements. Jianan also provides compatible cylinders, valves, manifolds, nozzles, detection devices, releasing controls, and related accessories.

As a high-pressure inert gas system, IG-100 requires consideration of cylinder storage space, pipe-network design, enclosure integrity, pressure relief, and local filling capability during project planning.

Request a System Quotation

IG-100 System Features

  • Pure Nitrogen Agent: IG-100 uses nitrogen, a naturally occurring component of air. It contains no halocarbon extinguishing agent and leaves no chemical residue on equipment after discharge.
  • Oxygen-Reduction Fire Suppression: The system suppresses fire by reducing the oxygen concentration within the enclosure to a calculated level that no longer supports continued combustion.
  • Electrically Nonconductive: Nitrogen does not conduct electricity and is suitable for enclosed spaces containing energized electrical, electronic, telecommunications, and control equipment.
    200 and 300 Bar Options: Jianan provides both 200 bar and 300 bar configurations. A higher storage pressure may reduce cylinder quantity, but the final choice also depends on available space, system hardware, pipe design, filling resources, and local pressure-equipment requirements.
  • Engineered Pipe-Network Protection: IG-100 is normally discharged from a high-pressure cylinder bank through a calculated pipe and nozzle network. Pipe sizes, nozzle orifices, pressure ratings, and flow distribution are selected for the actual enclosure.
  • Flexible Zone Configurations: Systems can be arranged for one dedicated enclosure or, where supported, several zones using selector valves. Main-and-reserve cylinder banks are also available for projects requiring faster restoration or operational redundancy.
  • No Extinguishing-Agent Residue: Nitrogen leaves no foam, powder, water, or liquid-agent residue. This helps reduce equipment cleanup and supports faster recovery after a discharge.
    Environmental Profile: Nitrogen has zero ozone-depletion potential and no assigned direct global-warming potential as an extinguishing agent.
  • Enclosure and Pressure Requirements: The protected room must retain the required nitrogen concentration. Because discharge introduces a large volume of gas, enclosure pressure-relief venting is commonly required and must be evaluated during system design.
  • Project-Based Engineering: Final system selection considers room volume, hazard type, temperature, altitude, occupancy, ventilation, enclosure leakage, cylinder location, floor loading, pipe routing, nozzle arrangement, and allowable enclosure pressure.
  • Specific cylinder capacities, dimensions, filling pressures, valve configurations, operating temperatures, and pipe limits are provided on the relevant product page or project quotation.

Applications

IG-100 fire suppression systems are commonly used in enclosed spaces where residue-free, electrically nonconductive suppression and long-term agent availability are important.

Typical applications include:

  • Data centers and server rooms
  • Telecommunications and network rooms
  • Electrical and switchgear rooms
  • Control and automation rooms
  • Process-control and instrumentation spaces
  • Generator and turbine enclosures
  • Industrial machinery and equipment rooms
  • UPS and power-equipment rooms
  • Archives and document storage
  • Libraries and museum collections
  • Medical imaging and diagnostic equipment rooms

IG-100 systems are commonly applied to suitable Class A surface fires, Class B hazards, and energized electrical equipment. Final suitability depends on the actual fuel, enclosure construction, ventilation, occupancy, altitude, pressure limits, and fire scenario.

They should not automatically be selected for open or poorly enclosed spaces, rapidly ventilated areas, deep-seated fires, reactive metals, self-oxidizing materials, uncontrolled fuel releases, or continuously supplied fuel hazards unless the fuel can be isolated.

UPS rooms containing lithium-ion batteries require separate evaluation. IG-100 may suppress surrounding combustion, but it should not be expected to stop cell-level thermal runaway, provide sustained cooling, prevent propagation, or eliminate reignition.

Frequently Asked Questions

Find quick answers about product selection, installation, compliance, and customization.

What is IG-100?

IG-100 is an inert-gas fire suppression agent consisting of nitrogen. It suppresses fire by reducing the oxygen concentration inside a protected enclosure. Nitrogen is electrically nonconductive, leaves no extinguishing-agent residue, and does not create halocarbon-agent decomposition byproducts.

Both systems use nitrogen. A 300 bar configuration can store more gas in a cylinder of similar nominal volume and may reduce cylinder quantity. A 200 bar system may be preferred where local filling and servicing resources are based on that pressure. Final selection also depends on cylinder sizes, installation space, pipe calculations, and system hardware.

IG-100 systems may be designed for normally occupied spaces when the final oxygen concentration, exposure duration, altitude, alarms, discharge delay, evacuation, ventilation, and re-entry procedures are properly addressed. Nitrogen is not a conventional toxic chemical, but excessive oxygen reduction can create an asphyxiation hazard.

Pressure-relief venting is commonly required because an IG-100 discharge introduces a large mass of gas into the protected enclosure. The required vent area depends on discharge flow, room leakage, regulated or unregulated discharge, enclosure strength, and allowable pressure.

A single-zone system uses a dedicated cylinder bank for one enclosure. A multi-zone system uses selector valves to direct a shared gas supply to different protected areas. Multi-zone systems require coordinated detection zoning, valve sequencing, pipe calculations, and sufficient gas for the largest protected zone.