before 2-3 years I heard same type of incident in one chemical industry . such incident can be avoided by taking due care as you mentioned.
One important point is Line of fire . One should not stand /put himself or herself in line of fire . while operating such equipment/instrument one must take position away from hazard's path . e.g when striking on fire extinguisher's knob , opening gas cylinder valve etc.
Good to see that you are participating in this forum and discussing your safety concerns.
22nd January 2014 From India, Thana
Abhay Sir -thank u
If anyone have IS 2171 & IS 2878 pl.provide the same to investigate above said incident.
As per investigation it seems that
1.may be due to metal cap kept lose by servicing agency during servicing / refilling
2.May be the manufacturing defect.
Pl.discuss & co operate
Thanks & Reagrds,
22nd January 2014 From India, Pune
Following conditions will indicate as per IS 2190:19912 about probability of mechanical failure of an extinguisher and is unsafe for use:
1. Corrosion, wear or damage to threads of any pressure retaining part.
2. Corrosion of welds
3. Extensive general corrosion or severe pitting
23rd January 2014 From India, Udaipur
Sorry to hear about the incident.These type of incidents are not unheard of.
Seems like the incident occured on a stored pressure extinguisher with a CO2 cartridge.
The following can be the possible causes
There is also a chance of the discharge tube getting blocked due to caking in the powder (which can occur due to poor quality of powder, moisture getting in the powder, powder not taken out during periodic inspection and de-caked,
Powder not replaced on time.
Cap and throat
Loose threads on the cap or
Cap itself placed loose after periodic inspection,
Threads got disintegrated due to corrosion.
Vent hole on the cap was blocked and not cleared during servicing
The extinguisher might have been repeatedly used for demonstration and cap not placed properly after in situ refilling.
Plunger got stuck and more effort was put to activate
Someone tried to open the cap after the extinguisher failed to discharge without giving time for the gas to escape through vent hole.
Placing face right on top of the extinguisher thereby coming in line of fire.
Thanks and Regards
Tata Consultancy Services Ltd
24th January 2014 From India, Trivandrum
To avoid such incidents regular inspection of fire extinguishers need to be carried out and during fire training & demo it should be taught to trainees to keep their body away from fire extinguisher and this incident should be quoted as example so that they should know consequence of operating fire extinguisher in its line of fire and show them how to operate it while keeping our body away.This is what i use to do during my fire training sessions.
24th January 2014 From India, Udaipur
To avoid such types of incident , regular inspection of fire extinguisher is to be carried out. Fire extinguisher kept outside area should be protected from outside environment( Heat, rain etc). Inplant training to be practiced regularly , yes its true such type of incidents do occur in pressurized CO2 cartridge type of extinguisher.
26th January 2014 From India, Kalyan
Two more Incident was happened in the same manner, while operating the Fire Extinguisher the metal cap was removed and the Cylinder hitted the Operting Person he lost his live. Considering of above incident the Government has changed some rules in Fire Extinguisher. Instead of Bang Type Cylinder now the Squeeze type cylinder was introduced by the companies. Its very safe to use and also once DCP Cylinder is operated means powder will come totally. But in the Squeeze type Cylinder depending upon our requirement we can squeeze. Try to Use Squeeze type cylinder to avoid such type of incident in future.
29th January 2014 From India, Sriperumbudur