Water industry

thumb|These water valves are operated by handle#Twist handles|rotary handles. A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.

connection point by which firefighters can tap into a water supply

sources of water that are useful or potentially useful

measuring instrument

system of engineered hydrologic and hydraulic components which provide water supply

piece that fits or connects pipes and tubes; used in pipe systems to connect straight pipe or tubing sections, adapt to different sizes or shapes and for other purposes

economic activity

infrastructure to carry potable water from treatment plant to consumers