AWWA C514-15 Air Valve and Vent Inflow Preventer Assemblies for Potable Water Distribution System and Storage Facilities (PDF)

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 psi (172.4 kPa [gauge]) and prevent the entry of contaminated water between 0 and 57.7 ft (17.6 m) of submergence and at liquid temperatures ranging from 32�F (0�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.