What is the maximum pressure that a dry fire extinguisher can bear?
The dry powder fire extinguisher is provided with a dry powder extinguishing agent such as ammonium phosphate, which is easy to flow and dry, and is composed of inorganic salt and a grinding dry additive, so that the fire extinguishing agent can effectively save the initial fire.
The dry powder extinguisher is filled with ammonium phosphate dry powder extinguishing agent. A dry powder extinguishing agent is a dry, easily flowing fine powder used for extinguishing fires, consisting of inorganic salts with a extinguishing effect and a small amountThe additive is composed of fine solid powder which is dried, crushed and mixed. It is a fire extinguishing agent widely used in fire fighting, and is mainly used in fire extinguishers. In addition to fighting special fire extinguishing chemicals fire extinguishing chemicals, dry powder fire extinguishing agent is generally divided into two categories of BC dry powder extinguishing agent (sodium bicarbonate, etc.) and ABC dry powder (ammonium phosphate, etc.).One is the volatile decomposition of the inorganic salts in the dry powder, which is chemically inhibited and negatively catalyzed by free radicals or active groups produced in the combustion process, so that the combustion chain reaction is interrupted and the fire is put out;The two is that the powder of the dry powder falls outside the combustible surface, produces chemical reaction, and forms a glass covered layer under the action of high temperature, thus isolating oxygen and smothering the fire. There is also partial dilution of oxygen and cooling action.
Dry powder fire extinguishers can withstand the highest pressure value of about 2.5MPa, is the design of dry powder extinguisher 1.5 times the pressure.Dry powder fire extinguisher is a kind of fire extinguisher. According to the type of dry powder extinguishing agent, it can be divided into: ordinary dry powder extinguisher; superfine dry powder fire extinguisher.
