The pressure gauge of the fire extinguisher is like this, is the dry powder flushed out inside? 5

Pressure gauge defects.

Definitely out of pressure! This fire extinguisher will definitely not work.

You can try to pull the latch and spray it out, and the spray force should either be weak or not sprayed.

The plastic shell of the pressure gauge is damaged and not thick enough.

There are three signs in the pressure gauge of dry powder fire extinguisher: red, green and yellow, and it is normal for the pointer to point to green.

When the pointer points to yellow, the pressure is slightly higher, and when the pointer points to red, the pressure is low and cannot be sprayed normally.

The dry powder fire extinguisher is equipped with ammonium phosphate and other dry powder fire extinguishing agents, which have easy fluidity and dryness, and are composed of inorganic salts and crushed and dried additives, which can effectively extinguish the initial fire.

Relying on the volatile decomposition of inorganic salts in the dry powder, chemical inhibition and negative catalytic action with the free radicals or active groups produced by the fuel during the combustion process interrupt the combustion chain reaction and extinguish the fire.

Related information

Dry powder fire extinguishers can be filled in various types of portable and fixed dry powder fire extinguishing devices, and can be used in combination with fluoroprotein foam fire extinguishing agent and water film-forming foam fire extinguishing agent to extinguish the initial fire of the oil tank, which can quickly control the development of flames and play a role in rapid fire extinguishing.

Sodium bicarbonate dry powder fire extinguisher is suitable for the initial fire of flammable and combustible liquids, gases and live equipment; In addition to the above-mentioned types of fires, ammonium phosphate dry powder fire extinguishers can also be used to extinguish the initial fire of solid substances. But none of them can extinguish metal burning fires.

The standard pressure value of dry chemical fire extinguishers is generally between to.

This is a normal range.

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The pressure gauge pointer needs to be adjusted in the middle of green and yellow, and the tension of the fire extinguisher twist is used again or well.

Identifying the Pressure Gauge:

1. The pressure gauge pointer points to the green area for the pressure is just right, and it can be used for fire extinguishing normally;

2. The pressure gauge pointer points to the yellow area for excessive pressure, and the tightness of the fire extinguisher knob needs to be adjusted;

3. The pointer of the pressure gauge points to the red area, indicating that the pressure is insufficient, indicating that the internal potion is insufficient and needs to be replenished in time.

4. Generally speaking, the green area is good, the yellow area is large, and the red area is small. Identifying the color mark on the pressure gauge through nanovolts to ensure the normal operation of the fire extinguisher is of great significance for fire drills and accidental fire handling.

The pressure underpressure of the dry chemical fire extinguisher is caused by the precipitation of dry powder in the cylinder without being upside down before use.

The most commonly used opening method for dry chemical fire extinguishers is the pressure handle method.

After lifting the fire extinguisher to the appropriate position from the fire source, first turn it upside down several times to loosen the dry powder in the cylinder, and then let the nozzle be aimed at the most violent burning, pull out the safety pin, press down the pressure handle, and the fire extinguishing agent will be sprayed out to extinguish the fire.

The working pressure of dry powder fire extinguishing agent at room temperature is. Dry powder fire extinguishers can extinguish general fires, and can also extinguish fires caused by the combustion of oil and gas. The dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as the power to spray out the dry powder in the cylinder to extinguish the fire.

Dry powder is a dry, easy-to-flow fine solid powder, composed of a base material that can extinguish fires and additives such as moisture-proof agents, flow accelerators, and anti-caking agents.

How to use: The most commonly used opening method for dry powder fire extinguishers is the pressure handle method. After the fire extinguisher is lifted to the appropriate position of the fire source, first turn it upside down several times to loosen the dry powder in the cylinder, and then aim the nozzle at the most violent burning place, pull out the safety pin, press down the pressure handle, and the fire extinguishing agent will be sprayed out to extinguish the fire.

When turning on the dry powder fire extinguisher, hold the middle of it with your left hand, aim the nozzle at the root of the flame, pull out the safety card with your right hand, rotate the opening knob, open the gas storage cylinder, and wait for 1-4 seconds, and the dry powder will spray out to extinguish the fire.

The pointer of the dry chemical fire extinguisher is in the yellow zone.