At what position of the pressure gauge needle is the pressure normal for a fire extinguisher?
4 Answers
When the pressure gauge needle of a fire extinguisher is in the green zone, it indicates normal pressure, with pressure values typically ranging between 1.2 to 1.5 MPa. Below are detailed introductions about fire extinguishers: Function of fire extinguishers: A fire extinguisher is a portable firefighting tool. It contains chemicals designed to extinguish fires. As one of the common fire prevention facilities, fire extinguishers are stored in public places or areas prone to fires. Different types of fire extinguishers are filled with different components, specifically designed for various fire causes. Caution must be exercised during use to avoid counterproductive effects and potential hazards. Main classifications: Based on mobility, they can be divided into portable and wheeled types; according to the power source driving the extinguishing agent, they can be categorized into gas cartridge type, stored pressure type, and chemical reaction type; based on the extinguishing agent filled, they can further be classified into foam, dry powder, halon, carbon dioxide, water, etc.
My fire extinguisher is hanging in the garage, and the needle on that little gauge always needs to be in the green zone to indicate normal pressure. Remember, green is the good position—red means the pressure is too low and the extinguishing agent won’t spray out, while yellow means it’s too high and might burst. Our family checks it every six months, and we only feel at ease when the needle stays steadily in the green zone. We also take the fire extinguisher with us when driving out, as it’s our lifeline in emergencies on the highway. Keeping this habit can save lives, and even the kids have learned to watch for the green zone. Temperature changes can affect the pressure, so don’t place it in hot spots like next to a sun-exposed car window. And if the extinguisher expires, don’t hesitate to replace it.
A fire extinguisher is a must-have in your camping gear box. I've personally seen that when the pressure gauge needle points to the green zone, it's absolutely normal. Those red and yellow zones are too dangerous, especially when you're outdoors without a backup. Before every trip, take a careful look at the gauge to ensure it's in the green zone. If it's off, adjust it or send it for repair. The green zone means the pressure is just right to put out a wildfire. Experience tells me to check it monthly to avoid it failing when you need it most during a sudden fire. Portable fire extinguishers are lightweight and easy to use but can be affected by moisture, which impacts accuracy, so remember to keep them away from water sources.
In the corner of the office unit, there is a fire extinguisher pressure gauge. When functioning normally, the needle should definitely be within the green zone. Everyone at work should pay attention to this area to ensure it stays green. In case of an electrical fire, it can be handled promptly. If the needle is in the red or yellow zone, report it immediately for repair and maintenance. Don’t overlook small details—safety comes first. I often remind my colleagues to check the gauge needle to prevent problems before they occur.
