Borax and sodium bicarbonate agents were among the first dry chemical
extinguishing agents developed. Sodium bicarbonate rose to the surface
as the preferred agent based upon its effectiveness in extinguishing
fires. Urea-potassium bicarbonate-based extinguishing agents were
developed in the late 1960s. Monoammonium phosphate and potassium
bicarbonate extinguishing agents became the next agents developed and
remain in the forefront of today’s modern fire extinguishers and Columbus fire suppression
systems. Monoammonium phosphate is the multipurpose fire-extinguishing
agent used in most fire extinguishers around the world. It is a yellow
powder with a faint ammonia odor. Like all other dry chemical agents, it
is nontoxic, but caution should be exercised around people with
existing respiratory conditions.
Potassium bicarbonate is
one of the most effective dry chemical extinguishing agents ever
developed. However, it is also one of the most expensive and its use is
reserved for aircraft firefighting and other expensive equipment
protection. Sodium bicarbonate has become a more specialized agent used
largely in fire suppression systems for commercial cooking operations.
It is generally accepted that dry chemical agents extinguish fire by
interrupting the chemical chain reaction, although there is also some
smothering and cooling that contributes in a small way.
chemical fixed suppression systems are primarily used for flammable
liquid and gas fires. There are two basic types of suppression systems,
total flooding and hand hose/local application. Dry chemical agents are
usually expelled from their container by gaseous nitrogen. Fixed
suppression systems are automatic and operate when a sensing device in
the protected area detects elevated heat and activates and shuts down
process equipment as required by NFPA 17. Columbus fire suppression
systems also have manual actuation devices similar to manual fire alarm
pull stations to instantly activate the system. When dry chemical
systems are used to protect commercial cooking operations, they must
also shut off the fuel supply when the system discharges. One of the
drawbacks to using a dry chemical extinguishing system is the mess it
creates in the protected area when it discharges. Cleanup and downtime
for a business or operation following a discharge can be extended with
dry chemical agents. It is important to consider a lot of things before
buying the suppression system. Make sure to do a lot of research and
gather as much as information about the suppression system before buying
or installing. In fact only with proper information and research
homeowners will be able to make the right decision.
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Columbus Fire Suppression System For Home