Morrison Bros 748A-3200 AV 3" FNPT Pressure Vacuum Vent - 20.2k SCFH Venting capacity 2.5 P.S.I. Foot Valves A tight fill connection is

A tight fill connection is required for the valve to operate

With a flow rate of 37GPM

and mild detergents

Remote adaptor: ductile iron

Morrison Bros 748A-3200 AV 3" FNPT Pressure Vacuum Vent - 20.2k SCFH Venting capacity 2.5 P.S.I. Foot Valves A tight fill connection isPressure vacuum vent designed for installation on top of the vent pipe of an aboveground or underground storage tank. Poppets seal vapors in the tank when pressure is equalized. The vent allows the tank to breathe during filling and dispensing operations. This vent must be used in conjunction with an emergency vent. It is recommended that the opening pressure setting is set below that of the emergency vent so the normal vent operates first. Settings