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OVERFILL PREVENTION SPECIFICATIONS CONTINUED Components e Grade Level Q Pre-flanged aluminum top drop tube 19� . 10 Q Roll-crimped top fitting/drop tube Q Protective float sleeve Q' Float (shielded by float sleeve) Q Valve assembly Q Magnetically-coupled actuator TankTop Q Threaded bottom drop tube lip Operation i As the liquid level in the UST approaches 95 % capacity, the liquid level raises the float. As the float rises it t actuates the external/internal magnetic couplers which N release the flapper to be closed by the flow of product. s5go of Tank a As the float continues to rise, the internal mechanism volume . pushes the flapper further into the product flow to allow actuation at high or low flow rates . This sudden reduction in flow caused by the primary flapper closing creates " line shock " to the fill hose which signals the delivery driver that the tank is nearing 95 % capacity. As the float continues to rise to the 95 % fill level , the Tank Bottom f 6° ( 152 mm) secondary closes , completely stopping the flow of fuel . -- 1 Maximum ORDERING INFORMATION . . • Description 708591901 Defender Series° overfill prevention valve with 5' (1524mm) top drop tube, 8 ' (2438mm) bottom drop tube 708591902 Defender Series® overfill prevention valve with 5' (1524mm) top drop tube, 10' (3048mm) bottom drop tube 708591921 Defender Series" overfill prevention valve with 5' (1524mm) top drop tube, 8 ' (2438mm) bottom drop tube, AGB compatible* 708591922 Defender Series® overfill prevention valve with 5' (1524mm) top drop tube, 10' (3048mm) bottom drop tube, AGB compatible* 708592901 Defender Series' overfill prevention valve with 10' (3048mm) top drop tube, 8 ' (2438mm) bottom drop tube 708592902 Defender Series* overfill prevention valve with 10' (3048mm) top drop tube, 10' (3048mm) bottom drop tube 708592921 Defender Series° overfill prevention valve with 10' (3048mm) top drop tube, 8 ' (2438mm) bottom drop tube, AGB compatible" 708592922 Defender Series' overfill prevention valve with 10' (3048mm) top drop tube, 10' (3048mm) bottom drop tube, AGB compatible* 708593901 Defender Series' overfill prevention valve, coaxial with 6 . 5' (1981mm) top drop tube, 8 ' (2438mm) bottom drop tube 708593902 Defender Series' overfill prevention valve, coaxial with 6 .5' (1981mm) top drop tube, 10' (3048mm) bottom drop tube 708593923 Defender Series' overfill prevention valve, poppeted coaxial with 6 . 5' (1981 mm) top drop tube, 8 ' (2438mm) bottom drop tube* 708593924 Defender Series° overfill prevention valve, poppeted coaxial with 6 .5' (1981mm) top drop tube, 10' (3048mm) bottom drop tube* 708594901 Defender Series° overfill prevention valve only with top adapter, AGB compatible* 708594902 Defender Series® overfill prevention valve only with coaxial top adapter, AGB compatible* 708535901 Roll crimping tool 708530930 Replacement roll crimper tool roller bit for retrofit with existing tool 708534901 Remote testing tool, 11 ' (3353mm) long sectional/collapsible 708534902 Coaxial remote testing tool, 11 ' (3353mm) long sectional/collapsible *Alcohol, gas, biofuel compatible (E-85, gasoline and Biodiesel) models come with hard coated anodized drop tubes for full compatibility. Defender OPV Replacement Parts Description 85039•DT Spare drop tube seal 1103942 Spare adapter O-ring 1103943 Spare Coaxial adapter O-ring 708526901 Upper tube adapter kit 708529901 Coaxial Upper tube adapter kit 708542908 8 ' thread-on bottom drop tube assembly, 2-pk 708542910 10 ' thread-on bottom drop tube assembly, 2-pk 70B542910AN 10' thread-on bottom drop tube assembly, 2-pk, AGB compatible 708542908AN 8 ' thread-on bottom drop tube assembly, 2-pk, AGB compatible 70821705 5' flanged top drop tube; order in multiles of 4 70821725 5 ' flanged top drop tube, AGB compatible; order in multiples of 4 110 * Franklin Fueling Systems