NPTF, Threaded Fill Limit Valves

Product Description
    • Machined Aluminum
    • 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.
    • Threaded valves mount with a 1" NPTF thread.
    • 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.
    • Custom ullage set points are available. Contact the factory for details.
Technical Information
  • For use in aluminum tanks
  • Angle/Port: 90°
  • Fire Test Capable: Yes
  • Collar: No
  • Width Inches: 2"
  • Projection Inches: 1-1/4"
  • Mounting Hole Diameter: 1-3/4"
  • Hose Connection: 5/8"
  • Flow > 70 l/min @ 0.25 kPa
  • Flow without corking > 130 l/min
  • Minimum reopening pressure: 0.5 kPa
Ordering Information
Catalog No. Ullage Depth Inches Length Inches Shipping Weight Lbs.
0586T00038 3/8 3-31/32 2.6
0586T00034 3/4 4-11/32 2.9
0586T00118 1-1/8 4-23/32 3.4
0586T00112 1-1/2 5-3/32 4.1
Instructions & Resources
Product Instructions Installation Instructions
Product Notes
NOTE: Longer shut-off heights in 1/2" increments are generally available up to 5-1/2". For custom heights, contact the factory.

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