Cách sử dụng
A valve is a device that controls the flow of fluid or gas through a pipe or duct by opening or closing it. It is used in various machines and systems to regulate the amount of water, steam, air, or gas that is passing through a particular pipe or duct. For instance, you can find valves in engines, plumbing appliances, heating systems, and many other applications. Valves are essential devices that play a vital role in maintaining the proper functioning of various machines and systems.