Kidde Fire Protection 469 Inert Gas Systems

Kidde Fire Protection’s 469 Inert Gas extinguishing systems, designed for both land-based and marine applications, use natural atmospheric gases—typically Argon (Ar), Nitrogen (N₂), and CO₂—blended to create a gas mixture with a density similar to air.

System Benefits

• Extended hold times for the extinguishing agent.
• Reduced room sealing requirements compared to other systems.

How It Works

The system suppresses fire by physically reducing the oxygen concentration in the protected space. At the design concentration, the atmosphere remains breathable for short periods, ensuring safe evacuation without toxic side effects. Unlike other agents, inert gas does not decompose or generate harmful by-products when exposed to flames.

Environmental Advantages

• Zero Ozone Depletion Potential (ODP)
• Zero Global Warming Potential (GWP)
• Colorless, odorless, and environmentally neutral.

Unlike other high-pressure inert gas systems, our Series 400 valve regulates both flow and pressure, enabling the use of Schedule 40 piping for many applications. Installation time and labor are further minimized with pre-fabricated manifolds, quick-connect actuation hoses, and easy-to-use electrical connectors.

Certifications

• LPCB
• VdS
• BV

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Sell Sheets
Industrial 469 Inert Gas System Argonite Marine 469 Inert Gas System