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AWWA C514-2020
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. The assemblies shall have a minimum design pressure of 25 psig (172.4 kPa [gauge]) and prevent the entry of contaminated water between 0 and 57.7 ft (17.6 m) of submergence at liquid temperatures ranging from 32°F (0°C) to a maximum of 125°F (52°C).
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AWWA: American Water Works Association [awwa]
AWWA: American Water Works Association [awwa]