AWWA C514-15 Air Valve and Vent Inflow Preventer Assemblies for Potable Water Distribution System and Storage Facilities
This first edition 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 andat liquid temperatures ranging from 32 degrees F (0 degrees C) to a maximum of 12°F (52°C).
The purpose of this standard is to provide the minimum requirements for inflow preventer assemblies including material, design, inspection, testing, marking, handling, and packaging for shipment.
Downloadable versions of current and historical standards are also available.