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Air valves are essential for air control in water systems. They help prevent inefficiency caused by air that is trapped during filling and pressurized operation, as well as to prevent damage in vacuum conditions and pressure surges.
However, air valves are known to leak, especially when located at low pressure points in the water system. This can cause water wastage and interrupt the smooth operation of the water system.
Air control is a critical factor in water systems. Every water system contains entrapped air, which may reduce flow cross-section, increase energy costs during pipeline filling and pressurized operation, cause pressure surges, interfere with metering or even stop the flow altogether. In addition, there are cases where air cannot enter the network. This can cause vacuum conditions and may lead to pipes collapsing or other mechanical damage to system components.