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CO2 4.5 KG Fire Extinguisher

This document provides instructions for operating and maintaining a 2 Kg/4.5 Kg CO2 fire extinguisher. It describes how to operate the extinguisher by opening the valve and aiming the nozzle at the fire while moving it briskly. Maintenance is recommended monthly to check for dents, corrosion, and weight loss, and every 3 years to check coatings, test the cylinder shell, and inspect nozzle fittings and hoses. A safety valve overhaul is suggested during refilling or every 5 years.

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250 views2 pages

CO2 4.5 KG Fire Extinguisher

This document provides instructions for operating and maintaining a 2 Kg/4.5 Kg CO2 fire extinguisher. It describes how to operate the extinguisher by opening the valve and aiming the nozzle at the fire while moving it briskly. Maintenance is recommended monthly to check for dents, corrosion, and weight loss, and every 3 years to check coatings, test the cylinder shell, and inspect nozzle fittings and hoses. A safety valve overhaul is suggested during refilling or every 5 years.

Uploaded by

vivekvpsfe
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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2 Kg/4.

5 Kg CO2 extinguisher

a) Description :
2 Kg/4.5 Kg CO2 extinguishers use CO2 which is stored in pressure containers for
extinguishing fires.

b) Operation :

1. Open Valve in anti-clock wise direction

2. Aim nozzle at the source of fire

3. Keep on moving nozzle briskly until carbon di-oxide continues

4. Close valve

a) Periodic checking/maintenance :

Sl Part Inspection Items to be checked


No. frequency
1 cylinder once a a) visual check cylinder body externally
month for any Dents/ deformations or
corrosion reject if severe.
b) visual check for corrosion on the
surface below clamping rings for
reject if severe.
once in 3 visually check external painting of shell for
months damage/ deterioration.
Check and record weight of cylinder and
send for refilling if loss in weight is more than
10%.
once in 3 Check coating thickness or carry out
years repainting.
before every Hydrostatic test of the cylinder shell along
refilling or with cap and hose assembly at 30kg/sq.cm .
once in 5 Measure Ultrasonic thickness of the shell
years and record readings.
Check coating thickness or carry out
repainting.
2 thread joint once a Check for damage/wear/ deterioration
between cap month
and neck
.
3 Nozzle & once in 3 inspect visually that the orifices are clear and
Discharge months unobstructed . Also check that valves are not
Fittings jammed.
4 Hose once in 3 check hose condition visually for
months ageing/cracks..
5 Safety Valve during Overhaul & reset
refilling or
once in 5
years
whichever is
earlier.

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