The appearance inspection of dry powder fire extinguisher shall be carried out once a month, mainly the pressure gauge. When the pressure gauge pointer is lower than the green line area, it shall be immediately pressurized for maintenance; the newly purchased ABC dry powder fire extinguisher tank shall be subject to water pressure test once every 5 years, after the first inspection, once every 2 years.
1. The appearance inspection of dry powder fire extinguisher should be conducted once a month, mainly the pressure gauge. When the pressure gauge pointer is lower than the green line area, it should be immediately pressurized for maintenance; the newly purchased ABC dry powder fire extinguisher tank should be hydraulic tested once every 5 years, after the first inspection, then once every 2 years, and the mandatory scrapping period of the tank is 10 years.
2. The pressure gauge of fire extinguisher should be checked regularly. When the pointer of pressure gauge is lower than the green line area, it should be charged and maintained immediately. Generally, the effective period of bottle pressure of fire extinguisher is 1.5 to 2 years, and it should be charged or replaced regularly. The fire extinguisher should be placed in a clean and dry place. It is strictly forbidden to expose to the sun or close to the fire source. It should be kept properly and it is strictly forbidden to remove it.
Dry powder fire extinguisher:
Dry powder fire extinguisher is a kind of fire extinguisher. According to the type of dry powder fire extinguisher, it can be divided into ordinary dry powder fire extinguisher and superfine dry powder fire extinguisher.
The dry powder fire extinguisher is equipped with ammonium phosphate and other dry powder fire extinguishing agents. The dry powder fire extinguishing agent is easy to flow and dry. It is composed of inorganic salt and grinding and drying additives, which can effectively put out the initial fire.
Dry powder fire extinguisher can put out general fire, but also can put out fire caused by oil, gas combustion. The dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as power to spray the dry powder in the cylinder to extinguish the fire. Dry powder is a kind of fine solid powder which is dry and easy to flow. It is composed of fire extinguishing base material, moisture-proof agent, flow accelerator, caking inhibitor and other additives. It is mainly used to extinguish oil, organic solvents and other flammable liquids, combustible gases and initial fire of electrical equipment.
