When is the pressure normal according to the pressure gauge pointer on a fire extinguisher?
3 Answers
The pressure is normal when the pressure gauge pointer on a fire extinguisher is in the green zone. Below is a detailed introduction to vehicle fire extinguishers: Classification of vehicle fire extinguishers: Vehicle fire extinguishers are specifically designed for car fires and include two main types: 1L water-based fire extinguishers and 1kg dry powder fire extinguishers. Precautions for using vehicle fire extinguishers: Regularly check the pressure indicator pointer on the fire extinguisher. The pointer in the green zone indicates normal internal working pressure, yellow indicates excessive pressure, and red indicates insufficient pressure. If the fire extinguisher exceeds its expiration date, it should be replaced. Always follow the instructions strictly when using it.
I've been driving for many years and always keep a fire extinguisher in my car. When the pressure gauge needle is in the green zone, it indicates normal pressure. Typically, there's a clear green block on the gauge, and when the needle points within that range, the pressure is just right, ensuring it works properly. If the needle drifts into the yellow zone, it means the pressure is either too high or too low, requiring caution; if it moves into the red zone, it's dangerous and might not discharge at all. Once, I forgot to check, and the needle was at the edge of the yellow zone—luckily, I sent it for maintenance in time, avoiding a potential disaster during a trip. I recommend car owners glance at the needle position monthly to ensure it stays near the middle of the green zone, as vehicle-mounted extinguishers are prone to bumps and need proper maintenance to prevent issues. Develop a habit of setting phone reminders to record inspection dates—don't let small oversights lead to big troubles. Safety first, after all.
When the fire extinguisher's pressure is normal, the needle steadily rests within the green zone. The color blocks are clearly defined: green means safe, yellow is a warning, and red indicates failure. I always include this in my routine car maintenance checks, such as when changing the oil or washing the car—just take a quick look. If the needle stays centered in the green zone, there's no issue. If it drifts into the yellow zone, there might be a leak or aging, requiring repair. If it's in the red zone, it must be replaced immediately to prevent rupture. Don’t skip regular checks—I recommend a full inspection every six months. Use a soft cloth to clean the gauge to avoid misjudgment. This simple step enhances overall vehicle safety. Don’t wait until a fire breaks out to regret it—prevention is always more important than remedy.
