
AWWA C-504 and C-516 butterfly valves, AWWA C-519 double-offset butterfly valves, AWWA C-507 rubber-seated ball valve, AWWA C-508 check valves (Surgebuster® check valve, dual disc check valve, rubber flapper check valve, lever and weight check valves, tilting disc check valves), AWWA C-517 plug valves, water & wastewater air release valves.