Carbon
Dioxide extinguishes fire by reducing the oxygen content in the
surrounding atmosphere to a level where combustion cannot be supported.
Total flood container assemblies comprise a seamless chrome molybdenum
steel container complete with a discharge valve, fixed siphon tube and
charged with 45kg of CO2. The system is designed to provide fire
suppression by maintaining low oxygen levels, and generally discharge
in one minute. The container is designed and manufactured to the
requirements of BS 5396 and BS 5045 Part 1. The system permits Carbon
Dioxide total flood to be installed to BS 5306 Part 4. A number of
containers may be manifolded together within a battery frame,
freestanding or wall mounted, single or double banked.
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The
valve has a safety pressure burst disc and an actuation port onto which
may be fitted either a manual/electric, manual/pneumatic or a pneumatic
actuator.
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A
rigid siphon tube is fitted for standard upright working. The serial
number, gross weight, tare weight and date of manufacture are stamped
on the container which is normally finished in red paint to BS 381 C,
reference 537, equivalent to 04 E53 of BS 4800.
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The
basic requirements for a sound and effective CO2 fire suppression
system are fast and reliable fire detection interfaced with a fast
discharging CO2 system, which also secures a satisfactory holding time
to prevent re-ignition of the fire.
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