Oil tanks, chemical plants, power plants, and coal mines should purchase foam fire engines when purchasing fire engines. Foam fire engines are water and foam fire engines. They can choose 8 tons of foam fire engines, 6 tons of water, and 2 tons of foam. Some oil tanks Material water is incapable of extinguishing, so choosing a water bubble dual-purpose fire engine, that is, a bubble fire engine would be more useful.
Foam fire trucks are mainly equipped with fire-fighting pumps, water tanks, foam mixing systems, foam guns, guns and other fire-fighting equipment that can independently put out fires. It is especially suitable for fighting oil fires such as oil, and it can also supply water and foam mixture to the fire. It is a necessary equipment for professional firefighting of petrochemical companies, oil terminals, airports and cities. Fire truck manufacturers.
A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y RamÃrez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana.[1] It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control.
Ball Cock, Brass Ball Bibcock, Ballcock Valve, Toilet Ballcock Valve
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsir-valves.com