Updated from the 1989 version, this new edtion serves as an operations manual for the most common large flowmeters currently used in water supply systems and in custody-transfer applications. Discussed are Venturi, modified Venturi, orifice plate, electromagnetic, turbine and propeller, transit-time ultrasonic, vortex, averaging Pitot and averaging insertable electromagnetic flowmeters. The manual covers basic theory, installation, maintenance, and advantages/disadvantages of each type.