C708-82: AWWA Standard for Cold-Water Meters--Multijet Type (PDF)

This standard covers the various types and classes of cold-water multi-jet meters in sizes 5/8 in. through 2 in. for water utilities' customer service and the materials and workmanship employed in their fabrication. These meters register by recording the revolutions of a rotor set in motion by the force of flowing water striking the blades. Included are sections on the following: references, affidavit of compliance, basis for rejection; materials specifications of main castings, register box rings and lids, measuring cages or chambers, measuring rotors, rotor spindles, register gear trains, external factors, coupling tail pieces and nuts, companion flanges, temperature requirements, general design specifications of size, capacity, length, pressure requirement, frost protection devices, markings, accessibility, registration accuracy, and calibration adjustment, the detailed design of the main case, external case fasteners and seals, main case connections, meter couplings (tail piece), companion flanges, registers, register boxes, measuring chambers or cages, strainers and seal wire holes. The appendix includes information on units of measurement, tests, testing equipment, registration accuracy, periodic tests, and meter storage.