Fire extinguisher is one of the common fire extinguishing equipment. Many people may know how to use a fire extinguisher but do not know how to read a fire extinguisher pressure gauge.

How to read fire extinguisher pressure gauge?

The indicator of the fire extinguisher pressure gauge in the red area indicates that the pressure is too low and cannot be sprayed, indicating that the pressure is faulty and needs to be replaced or refilled. The pointer in the green area is normal and can be used normally. The pointer in the yellow area indicates that the pressure is too high and dry powder can be sprayed, but there is a danger of explosion and explosion. For fire extinguishers in this state, it is best to go to a regular fire extinguishing equipment store to replenish dry powder. The yellow grid area is a hazardous area used by manufacturers when producing or maintaining fire extinguishers. Normally, regular manufacturers will fill the green grid area. As mentioned above, if the pointer is in the yellow grid area, the pressure is too high. This is dangerous, but it does not mean it is invalid when used.

For most fire extinguishers, whether it is water-based, dry powder, clean gas, etc., the fire extinguisher is usually equipped with a fire extinguisher pressure gauge to check whether the pressure in the bottle meets the requirements. Once a leak occurs, the pressure will drop, making it impossible to extinguish the fire normally. In the daily fire safety inspection, whether the pressure gauge pointer of the fire extinguisher is in the green normal area is one of the inspection items of the fire extinguisher.

What should the pressure gauge be on a fire extinguisher?

The fire extinguisher pressure gauge is a key component to monitor the internal pressure state. In normal temperature and pressure, the pointer of the fire extinguisher pressure gauge should be in the green area, indicating that the internal pressure of the fire extinguisher is moderate, and the fire extinguisher is in the normal working state, and it can be used safely and effectively. If the fire extinguisher pressure gauge hand comes to the red area, this means the internal pressure of the fire extinguisher is too low to spray the fire extinguishing agent normally; if the point to the yellow area, indicating the internal pressure of fire extinguisher too high, high pressure, there may be a safety hazard. So, it is an important step to check the pressure gauge of the fire extinguisher regularly, to ensure that it is within the normal pressure range, so that the fire extinguisher can play the role of effective use in emergency situations.

How to check fire extinguisher pressure?

To test the pressure on a fire extinguisher you must, Firstly, look closely at the pressure gauge located right on the handle side of the fire extinguisher. Used, the fire pressure pointer point to the pointer should point to the green area, shown on the right; If the pointer points towards the red area, it shows that there is less pressure in the fire extinguisher, it may not spray properly. It needs to be in the yellow area, that is, without explosion hazard, if it points to the yellow area, you can still use it normally, but explosion hazard will exist. So to regularly check the fire extinguisher pressure is the key link to ensure its normal work.