2009,AWWA,"AWWA C500-09: Metal Seated Gate Valves For Water Supply Service" 2010,AWWA,"AWWA C504-10: Rubber Seated Butterfly Valves" 2011,AWWA,"AWWA C507-11: Ball Valves, 6 Inch Thru 48 Inch (150 MM Thru 1,200 MM)" 2009,AWWA,"AWWA C508-09: Swing-Check Valves For Waterworks Service 2-In Through 24-In (50-MM Through 600-MM) NPS" 2009,AWWA,"AWWA C509-09: Resilient Seated Gate Valves For Water Supply Service" 2007,AWWA,"AWWA C512-07: Air Release, Air/Vacuum, And Combination Air Valves For Waterworks Service" 2009,AWWA,"AWWA C515-09: Reduced-Wall, Resilient-Seated Gate Valves For Water Supply Service" 2010,AWWA,"AWWA C516-10: Large Diameter Rubber-Seated Butterfly Valves, Sizes 78 In. (2,000 MM) And Larger" 2009,AWWA,"AWWA C517-09: Resilient-Seated Cast-Iron Eccentric Plug Valves" 2008,AWWA,"AWWA C518-08: Dual-Disc Swing-Check Valves For Waterworks Service" 2010,AWWA,"AWWA C520-10: Knife Gate Valve, Sizes 2 In. (50 MM) Through 92 In. (2,400 MM)" 2007,AWWA,"AWWA C530-07: Pilot Operated Control Valves With Erratum-200805" 2008,AWWA,"AWWA C541-08: Hydraulic And Pneumatic Cylinder And Vane-Type Actuators For Valves And Slide Gates" 2009,AWWA,"AWWA C542-09: Electric Motor Actuators For Valves And Slide Gates" 2005,AWWA,"AWWA C550-05: Protective Interior Coatings For Valves & Hydrants" 2005,AWWA,"AWWA C800-05: Underground Service Line Valves & Fittings (Also Included: Collected Standards For Service Line Materials)" 2001,AWWA,"AWWA Manual M49: Butterfly Valves: Torque, Head Loss & Cavitation Analysis, First Edition" 2001,AWWA,"AWWA Manual M51: Air Release, Air/Vacuum Valves & Combination Air Valves" 2006,AWWA,"AWWA Manual M44: Distribution Valves: Selection, Installation, Field Testing, And Maintenance, Second Edition"