A gauge is a common way to measure the basic performance of fluid objects. A pressure gauge is one of them. It is used to evaluate the pressure in a container relative to the standard atmospheric pressure. The pressure gauge as one fire extinguisher parts used to indicate the remaining amount agent and pressure of the gas inside the cylinder to ensure that the fire extinguisher is in a normal working state.
How to identify the pressure gauge of a fire extinguisher maintenance?
The first section is the red zone. The pointer points to the red zone, indicating that the pressure in the fire extinguisher is small and cannot be ejected. It need to charge pressure in time.
The second paragraph is the green area. The pointer in this area, indicating that the pressure is normal and can be used normally to discharge agent in extinguisher.
The yellow zone in the third section indicates that the pressure of the dry powder in the fire extinguisher is too high, need to adjust the tightness of the fire extinguisher knob.
 |  |  |
