Clean Agent Suppression Systems

Water suppresses fire. It also destroys servers, corrupts storage arrays, and turns a recoverable incident into a total-loss insurance claim. In data centers, telecom switching rooms, and financial trading floors, conventional sprinkler systems create as much damage as the fire they’re designed to prevent.

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These mission-critical environments demand a fundamentally different approach to fire suppression — one that extinguishes flames without leaving residue, without displacing oxygen to dangerous levels, and without destroying millions of dollars in digital infrastructure.

That approach is clean agent suppression.

What Are Clean Agents?

Clean agents are gaseous fire suppression chemicals that extinguish fire through a combination of heat absorption and chemical interruption of the combustion process. Unlike water or dry chemical extinguishers, they leave zero residue and evaporate completely after discharge.

FM-200 (HFC-227ea) is the most widely deployed clean agent in the world. It suppresses fire in less than 10 seconds and is safe for use in occupied spaces at design concentrations. FM-200 systems are compact, require relatively small storage cylinders, and have a proven track record spanning decades.

Novec 1230 is the next-generation alternative. It has a significantly lower Global Warming Potential than FM-200, making it the preferred choice for organizations with environmental sustainability mandates. Novec 1230 is stored as a liquid and deployed as a gas, providing the same rapid suppression performance with a smaller environmental footprint.

Both agents share the same critical advantage: they protect electronics, documents, and sensitive equipment without the destructive side effects of water.

Design Considerations That Make or Break the System

A clean agent system is only as effective as its design engineering. Two critical factors determine success or failure:

Room Integrity. Clean agents work by achieving a specific concentration within a sealed volume. If the room leaks — through cable penetrations, unsealed doors, drop ceiling gaps, or HVAC ducts — the agent dissipates before it can suppress the fire. A certified door fan integrity test must be performed to verify the room will hold concentration for the required 10-minute soak time.

Ventilation Protocol. After discharge, the agent and combustion byproducts must be evacuated safely. Dedicated exhaust systems must be engineered to purge the protected space without cross-contaminating adjacent areas.

Sessi’s Custom Engineering Approach

At Sessi Fire Protection, we design clean agent suppression systems from first principles — not from a catalog. Every installation begins with a comprehensive risk assessment of the protected space, including heat load analysis, room volume calculations, and integrity testing.

We engineer systems for data centers, telecom rooms, museum archives, and pharmaceutical storage facilities. Our designs account for future expansion, ensuring your protection scales with your infrastructure.

Protect What Matters Most

Your digital infrastructure represents millions in capital investment and irreplaceable operational capability. A generic fire suppression approach puts all of it at risk.

Protecting millions in digital infrastructure? Chat with us now to request a specialized risk assessment for your server rooms.