PERKO swivel fill limit valve for aluminum tanks 1-1/2" ullage depth. Sold by the each
Blue Polymer Valve
Standard ullage depths range from 3/8" to 1-1/2"
FLVs are used to establish ullage (airspace) in the tank and help prevent overfilling.
Perko's FLVs connect to 5/8" hose. They are designed to vent to vented fuel fills and not directly to canisters.
Mounting options for tank mounted FLVs include flanged (for plastic tanks), threaded or welded (for metal tanks) and swivel (for both plastic and metal tanks).
Flanged valves match the SAE 5-bolt level sender flange. Gasket is not included.
Swivel valves include valves, valve housing, o-ring, snap ring and tank insert.
Distant sensing (DFLV) versions are available for both plastic and metal tanks on a custom basis