M49 Quarter-Turn Valves: Head Loss, Torque, and Cavitation Analysis, Third Edition (PDF).

Recommended methods for calculating operating torque, head loss, and cavitation for quarter-turn valves typically used in water works service. M49 also provides guidance on generally available methods for using quarter-turn valves as well as their cavitation, flow, and torque characteristics. Abstract: Recommended methods for calculating operating torque, head loss, and cavitation for quarter-turn valves typically used in water works service. M49 also provides guidance on generally available methods for using quarter-turn valves as well as their cavitation, flow, and torque characteristics This operational guide helps utility managers implement the requirements established in AWWA G300 Source Water Protection. Resource added for the Environmental Engineering Waste and Water Technology program 105062