Guangdong SenJe Fire Protection Group
Tel : 86-020-31065211
Fax : 86-020-31132229
Address: Xianchong Industrial Park, Panyu, Guangzhou, China
Simple introduction of dry powder fire extinguisher
1. Dry chemical fire extinguisher, is an active fire protection device used to extinguish or control
small fire, often in emergency. A powder based agent that extinguishes by separating the four
parts of the fire tetrahedron. It prevents the chemical reactions involving heat, fuel, and oxygen
and halts the production of fire sustaining "free-radicals", thus extinguishing the fire.
It is suitable to the fire on Petroleum products, oil paint and organic solvent.
Beside, it also can put out the fire caused by Liquid, gas, electrical fire
( Dry powder has more than 50000v electric insulation performance), even the solid fire.
However, the dry chemical can’t put out the light metal fire. So when we use it, we need to pull out
the linchpin and take the spout or tube in hand, and then press the handle to make the airflow
shoot at and cover the fire until it is extinguished completely.
What’s more, due to the dry powder injection time is short and easy to drift, we need to close to
the flame, and stand in the windward position of kindling point.
Finally, we need to pay attention to the maintenance of fire extinguishers. it should be avoid
And need to be inspection by a qualified technician according to the manufacturer's require
and the inspection cycle.
2. Wheeled dry chemical fire extinguisher. When there is fire, pls push the fire extinguisher to the
scene, and pull out and straight spray hose, and then take the safety pin out and press the
handle to make the airflow shoot at and cover the fire.
3.The Effective Bulk Range of the 2 or 3kg dry chemical extinguisher is 2.5m, the 4 or 5 kg’ s is 4m,
and the Effective Bulk Time is 8-9s, the 8kg’ s is 5m, and the effective bulk time is 12s.
the 35-50kg wheeled dry chemical extinguisher’s effective bulk time is 8m, and the time is 20s,
the 70kg wheeled extinguisher’s is 9m, and the time is 25s.
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