Can the fire extinguisher be used when the pressure gauge pointer is in the yellow zone?
4 Answers
The fire extinguisher cannot be used when the pressure gauge pointer is in the yellow zone. More information about the fire extinguisher pressure gauge is as follows: 1. When the fire extinguisher pressure gauge pointer points to the green zone, it indicates that it can be used safely. 2. When the fire extinguisher pressure gauge pointer points to the red zone, it indicates that the pressure inside the bottle is insufficient and cannot be used normally, requiring replacement. 3. When the fire extinguisher pressure gauge pointer points to the yellow zone, it indicates excessive pressure, which can easily lead to danger and should be sent to a specialized institution for inspection and repair. 4. The fire extinguisher pressure gauge is an important indicator to determine whether the fire extinguisher can be used normally, so it should be observed frequently and inspected and repaired regularly.
When the pressure gauge needle of a fire extinguisher is in the yellow zone, it should not be used because excessive pressure may cause the extinguisher to become unstable, leading to uncontrolled discharge of the extinguishing agent or even an explosion, which is extremely dangerous in any situation. In vehicles, the onboard fire extinguisher should be checked regularly. If the needle is found to have moved into the yellow zone, stop using it immediately and move it to a safe place. I take a quick look at the pressure gauge every few months during car washing to ensure it remains in the green zone. Pressure can fluctuate easily with significant temperature changes, so extra attention is needed after parking in the sun during summer. If the needle behaves abnormally, seek professional repair services immediately—do not attempt to fix it yourself to prevent accidents. Remember, a fire extinguisher is a life-saving tool, and poor maintenance can cause it to fail in critical moments. Developing a habit of regular checks can prevent many problems.
As someone who frequently deals with vehicle issues, I've encountered many fire extinguisher problems. When the needle points to the yellow zone, it indicates excessive internal pressure, which could be caused by high temperatures or seal failure. Excessive pressure may cause the safety valve to fail, resulting in a forceful discharge upon opening—at best wasting the extinguishing agent, at worst causing equipment rupture and injury. Vehicle-mounted fire extinguishers require special attention, as the rapid temperature changes in the engine compartment can easily affect pressure. I recommend inspecting all vehicle fire extinguishers quarterly, visually ensuring the needle is in the green zone and there's no external damage. If you find the needle in the yellow zone, don't attempt to adjust the pressure yourself—immediately contact fire service professionals for maintenance or replacement. The small investment in regular fire extinguisher maintenance can prevent major disasters.
Once the pressure gauge needle of the fire extinguisher stops in the yellow zone, stop using it immediately. The high-pressure state makes it unsafe, and it may fail or cause injury during use. The correct handling method is to store it separately and then contact a professional for evaluation—do not attempt to repair it yourself. In the car, secure the fire extinguisher in a place where it is less likely to be bumped, and quickly check monthly to ensure the needle stays in the green zone. I usually set a phone reminder for regular checks to ensure it functions reliably in emergencies. Remember, safety comes first—don't take any risks.
