Why isn't there a pressure gauge on the extinguisher?
The extinguisher doesn't have a pressure gauge. It means carbon dioxide. First of all, the most basic function of the manometer is leak hunting. Because the general fire agent leaks, the pressure will drop, so use a gauge to see.But carbon dioxide is special, because the carbon dioxide when filling into the bottle is liquefied, simply said, is a carbon dioxide extinguisher, if installed on the pressure gauge, the full fire extinguishing agent when pressure and leak but no leakage after pressure, so not to leak, because when the leak liquefied carbon dioxide gasification of continuous pressure leak. So, in general, except for carbon dioxide, fire extinguishers use a pressure meter, and carbon dioxide does not use, carbon dioxide leak detection method is weighing
Dry powder fire extinguishers, water base are pressure injection, need to be equipped with a pressure gauge to detect leakage, once leaked, the pressure will be reduced, leading to dry powder and water jet weakness, can not extinguish the fire properly;But carbon dioxide is more specific, because carbon dioxide is liquefied and then rushed into, once the leakage of carbon dioxide gasification will still keep the pressure in the bottle unchanged, so the barometer meaningless.The most basic function of the pressure gauge is leak hunting. Because the general fire agent leaks, the pressure will drop, so the pressure meter to see, carbon dioxide leak detection method is weighing.
Not all fire extinguishers don't have pressure gauges. You don't have a pressure gauge. The extinguisher should be a carbon dioxide extinguisher.Carbon dioxide fire extinguishing device in the medicament into carbon dioxide, carbon dioxide is a gas at room temperature, through high pressure compression in liquid form is filled into containers, so CO2 itself is high pressure, does not require a pressure gauge to display the pressure.So how do you know if there are any drugs in the CO2 extinguisher? In fact, very simple, carbon dioxide extinguisher is called by weighing again to determine whether there are drugs.In addition to carbon dioxide extinguisher, other fire extinguishers are generally pressure gauges, such as dry powder fire extinguishers, foam fire extinguishers, water-based fire extinguishers, etc..
