Sayyed Fire Integration
Fire extinguishers

Carbon dioxide extinguishers

For live electrical equipment and flammable liquids — it puts the fire out and leaves nothing on the equipment. Supply, mounting, service and refilling.

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Photo — CO₂ extinguisher with discharge horn beside a switchboard
Practice
IS 15683 · IS 2190
Typical use
Server rooms, switchboards, labs
Service
Annual · refill · hydro-test
What it is

The unit to use on something that is still switched on

CO₂ is stored as a liquid under pressure and discharges as a gas and a cloud of dry ice. It is non-conductive and leaves no residue at all, which makes it the correct choice at a switchboard, a UPS, a server rack, a lab bench or a machine with electronics in it — anywhere that a powder discharge would end with the equipment written off along with the fire.

Two things about it need to be understood by whoever might use it. The horn gets extremely cold in use, so the unit is held by its handle and not by the horn. And because it works by displacing oxygen, discharging a large unit in a small unventilated room is not safe for the person holding it — in a confined space, use it and leave.

Sizes are chosen for the equipment rather than the room area, and CO₂ is usually installed alongside another type rather than instead of it: CO₂ at the panel and ABC powder in the corridor is the normal pairing. We survey, supply, mount and sign the units, and cover the annual check, refilling after use and the hydrostatic test cycle under contract with a per-unit record.

Equipment

Sizes and what each one is for

Capacities we supply. CO₂ units are heavier than their powder equivalent, which is part of choosing the size for who will be lifting it.

2 kgAt a rack, a bench, a control desk or a distribution board — the unit a person can lift one-handed.
3 kg and 4.5 kgServer rooms, UPS rooms and switchboard rooms, where the risk is a cabinet rather than a device.
6.5 kg and 9 kgPlant rooms, generator areas and transformer yards.
Trolley-mounted units22.5 kg and above, for substations and plant where the fire will not be reached with a hand unit.
Discharge horn and hoseThe frost-free handle and horn assembly, which is what makes the unit safe to hold in use.
Wall brackets and signageMounted and signed on the route to the risk, not inside the room it protects.
Refilling by weightCO₂ has no gauge — the charge is checked by weighing, which is why the service record matters.
Hydrostatic testingHigh-pressure bodies on their required test cycle, stamped and recorded.

Tell us about the project

Send the drawings or the BOQ and we will price it line by line. Most enquiries start with a site visit, because the site decides the system — not the catalogue.

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