Fill Limit Valves

Overview

FLVs are used to establish ullage (airspace) in the tank and help prevent overfilling. Perko 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 ICVs 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.

  • Threaded valves mount with a 1” NPTF thread.

  • Swivel valves include valve, 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.

  • Custom ullage set points are available. Contact the factory for details.

  • Swivel Fill Limit Valves

    • Machined Aluminum
    • Blue Polymer Valve
    • Standard ullage depths range from 3/8" to 1-1/2"
    • Vents large volume of vapor from inside the fuel tank while refueling.
    • Prevents overfilling of the fuel tank.
    • Sets the ullage space.
    • Directs fuel vapors to carbon canister through a vent tube.
    • Provides vapor back flow to prevent tank vacuum.
    • Prevents liquid carryover (fuel leakage) during boat maneuvers.

    Technical Information

    • For use in aluminum tanks
    • Angle/Port - 90°
    • Width - 2"
    • Projection - 1-1/4"
    • Mounting Hole Diameter - 1-3/4"
    • Hose Connection - 5/8"
    • Flow > 70 l/min @ 0.25kPa
    • Flow without corking > 130 l/min
    • Minimum reopening pressure: 0.5 kPa
    OEM Bulk Pkg. 10 Pcs. Length Inches Collar Ullage Size Inches Certified Fire Tested Shipping Weight Lbs.
    0586S0A038 3-23/32 Yes 3/8 Yes 4.0
    0586S0A012 3-27/32 Yes 1/2 Yes 4.0
    0586S0A034 4-3/32 Yes 3/4 Yes 4.2
    0586S0A118 4-15/32 Yes 1-1/8 Yes 4.8
    0586S0A112 4-27/32 Yes 1-1/2 Yes 5.5
  • Flanged Fill Limit Valves

    • Machined Aluminum
    • Blue Polymer Valve
    • Standard ullage depths range from 3/8" to 1-1/2"
    • Matches the SAE 5-bolt level sender flange.
    • Gasket is not included.
    • Vents large volume of vapor from inside the fuel tank while refueling.
    • Prevents overfilling of the fuel tank.
    • Sets the ullage space.
    • Directs fuel vapors to carbon canister through a vent tube.
    • Provides vapor back flow to prevent tank vacuum.
    • Prevents liquid carryover (fuel leakage) during boat maneuvers.

    Technical Information

    • For use in aluminum and plastic tanks
    • Angle/Port - 90°
    • Width - 2-3/4"
    • Projection - 1-1/16"
    • Bolt Circle - 2-1/8"
    • Mounting Hole Diameter - 1-1/2"
    • Hose Connection - 5/8"
    • Flow > 70 l/min @ 0.25kPa
    • Flow without corking > 130 l/min
    • Minimum reopening pressure: 0.5 kPa
    OEM Bulk Pkg. 10 Pcs. Length Inches Collar Ullage Size Inches Certified Fire Tested Shipping Weight Lbs.
    0586F0A038 3-17/32 No 3/8 Yes 3.5
    0586F0A012 3-21/32 No 1/2 Yes 3.5
    0586F0A034 3-29/32 No 3/4 Yes 3.8
    0586F0A118 4-9/32 No 1-1/8 Yes 4.4
    0586F0A112 4-21/32 No 1-1/2 Yes 4.8
  • NPTF Threaded Fill Limit Valve

    • Machined Aluminum
    • Blue Polymer Valve
    • Standard ullage depths range from 3/8" to 1-1/2"
    • Vents large volume of vapor from inside the fuel tank while refueling.
    • Prevents overfilling of the fuel tank.
    • Sets the ullage space.
    • Directs fuel vapors to carbon canister through a vent tube.
    • Provides vapor back flow to prevent tank vacuum.
    • Prevents liquid carryover (fuel leakage) during boat maneuvers.

    Technical Information

    • For use in metal tanks
    • Angle/Port - 90°
    • Width - 1-5/16"
    • Projection - 1-1/4"
    • Mounting Hole Diameter - 1" NPTF
    • Hose Connection - 5/8"
    • Flow > 70 l/min @ 0.25kPa
    • Flow without corking > 130 l/min
    • Minimum reopening pressure: 0.5 kPa
    OEM Bulk Pkg. 10 Pcs. Length Inches Collar Ullage Size Inches Certified Fire Tested Shipping Weight Lbs.
    0586T00038 3-31/32 No 3/8 Yes 2.6
    0586T00034 4-11/32 No 3/4 Yes 2.9
    0586T00118 4-23/32 No 1-1/8 Yes 3.4
    0586T00112 5-3/32 No 1-1/2 Yes 4.1