Automatic Powder Extinguishers also called hanging dry powder fire extinguisher

The range of our automatic powder extinguishers are filled with 4.5kg, 6kg and 12kg ABC powder.

The cylinder material is DC01.

Question one: What's the working principle of automatic powder fire extinguisher?

1 Automatic bursting principle: With the rising temperature of the liquid in the fire extinguisher, the liquid slowly turn into gas. As the pressure in the cylinder exceed the limitation, the cylinder would break up.

2 Automatic powder fire extinguisher principle: The gasified liquid is carbon-dioxide and nitrogen. Carbon-dioxide is used to remove the oxygen from the fire. Nitrogen is for cooling down the fire.

Question two: How long does it take from the start of fire to its bursting?

It takes about 2 to 3 minutes to burst in the closed state.

Question three: What's the degree of safety of the automatic powder fire extinguisher?

After verification, the shattered piece of the broken glass tube in the fire extinguisher won't pose danger to the people and environment around. The carbon-dioxide given out during the bursting won't hurt others nearby, too. This is because giving out carbon-dioxide is of short time, and also with small effected area, the places with carbon-dioxide is on fire so people can't stay for long time.

Question four: Which places are suitable to use automatic powder fire extinguisher?

The automatic powder fire extinguisher can serves as supplementary fire fighting equipment in many public situations, such as library, archives, etc. It can put out fire without manual reaction, and it works with carbon-dioxide and nitrogen, not water which is very suitable for water-proof environment.

Spray system is limited when there are some places not able to be sprayed. But the automatic powder fire extinguisher can make up the short-comings of it.