How to accurately interpret the pressure indication on the fire extinguisher pressure gauge

Basic structure and characteristics of pressure gauge
As a key component in fire extinguishing equipment, the design of fire extinguisher pressure gauge is not only about beauty, but also about practicality and safety.
a. Appearance design:
The shell of fire extinguisher pressure gauge is usually made of high-strength, corrosion-resistant metal materials to ensure that the structural integrity and functional stability can be maintained even in harsh fire scene environments. The dial design pursues simplicity and refinement, with clear scale lines and eye-catching digital logos, allowing users to quickly and accurately read the pressure value even in tense or dim environments. This design reflects the ultimate pursuit of user experience and ensures that users can obtain key information effortlessly in emergency situations.
b. Contrasting color design:
The contrasting color design on the dial is a highlight of the pressure gauge. The red area usually represents low pressure, which means that the fire extinguisher may not be able to spray normally and needs to be replaced or repaired immediately; the green area indicates that the pressure is moderate and the fire extinguisher is in the best working condition; the yellow area warns that the pressure is too high and there are safety hazards. It is recommended to deal with it as soon as possible. This color combination is not only beautiful, but more importantly, it helps users quickly judge the pressure status of the fire extinguisher through intuitive visual feedback, so as to make the correct emergency response.

How to read the pressure gauge
Accurately reading the pressure indication on the fire extinguisher pressure gauge is the key to ensuring the effective use of the fire extinguisher.
a. Understand the dial scale:
The dial scale of the fire extinguisher pressure gauge is usually divided into three areas: red, green and yellow, and each area has its specific meaning. The red area indicates that the internal pressure of the fire extinguisher is too low, and the dry powder or gas cannot be sprayed normally. At this time, the fire extinguisher has lost its fire extinguishing function and should be replaced or refilled immediately. The green area is the ideal pressure range, indicating that the fire extinguisher is in the best working condition and can be put into use at any time. The yellow area indicates that the internal pressure of the fire extinguisher is too high. Although the fire extinguishing agent may still be sprayed, there is a risk of explosion. It should be stopped immediately and contact a professional organization for inspection and repair.
b. Identify the pressure state:
When reading the pressure gauge, first observe the position of the pointer. If the pointer is in the red area, it means that the internal pressure of the fire extinguisher is too low and it can no longer be used normally. It should be replaced or refilled immediately. If the pointer is in the green area, it means that the fire extinguisher has moderate pressure and is in the best working condition. It can be used with peace of mind. If the pointer points to the yellow area, it means that the internal pressure of the fire extinguisher is too high and there is a safety hazard. Stop using it immediately and contact a professional for repair as soon as possible.
c. Determine the pressure value:
In addition to judging the pressure state according to the area where the pointer is located, you can also estimate the specific pressure value by observing the relative position of the pointer and the scale line. This usually requires certain professional knowledge and experience, but it is an important skill for professional firefighters or those who have received relevant training. By accurately judging the pressure value, you can understand the performance status of the fire extinguisher more accurately and provide more powerful support for firefighting operations.