Historical
AWWA C514-2015
Air Valve and Vent Inflow Preventer Assemblies for Potable Water Distribution System and Storage Facilities
This standard describes 1-in. (25-mm) through 12-in. (300-mm) air valve and vent inflow preventer assemblies designed for use on the outlet of potable water distribution system air valves furnished in accordance with ANSI/AWWA C512 or storage facility vent pipes.
AWWA: American Water Works Association [awwa]