Air-Valves: Air-Release, Air/Vacuum and Combination
|Publication Date:||1 January 2016|
Air valves are hydromechanical devices designed to automatically release air and wastewater gases or admit air during the filling, draining, or operation of liquid piping systems for water and wastewater services. The safe and efficient operation of a liquid piping system is dependent on the continual removal of air and wastewater gases from the liquid piping system. This chapter includes an explanation of the effects of air and wastewater gases and their sources in liquid piping systems.