Flomatic Valves’ new American Iron and Steel (AIS) compliant Air and Vacuum MAXIAIR model features a strong fusion bonded epoxy coated ductile iron body and cover (including internal surfaces) with 316 stainless steel internals. This product is designed with the operator in mind for ease of maintenance. Engineered to meet AWWA Standard C512 for clean water pumping applications. Its features include a two-bolt quick access cover, corrosion resistant 316 stainless steel float and trim, resilient Buna-N seating and full nominal pipe size threaded female inlet and outlet ports. The air/vacuum valves are ideal for clean water applications that require air release and vacuum pipeline protection. MAXIAIR Air/Vacuum valves exhaust large quantities of air at system start-up and admit large quantities of air to provide pipeline vacuum protection when negative pressure develops during power failures or pipeline breaks.