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12128/23, 1 :18 PM overfill Prevention Valve I Franklin Electric Fueling Systems <br /> 3.97" i <br /> ( 101 mm) <br /> 1 .6T <br /> (41 . 1 mm) <br /> - - - <br /> 95% <br /> Shutoff <br /> Level <br /> 17 .40" 18 . 40" <br /> ( 442 mm ) (467 mm ) <br /> Operation <br /> The OPV is designed with a primary shutoff that will activate between 85% and 92% of tank volume, depending on tank diameter. After the primary <br /> shutoff is actuated the flow through the valve is limited to less than 30 Ipm 8 gpm (30 1pm). A secondary positive shutoff will occur at 95% tank <br /> volume if filling continues. As the liquid level in the UST approaches 95% capacity, the liquid level raises the float. As the float rises it actuates the <br /> external/internal magnetic couplers which release the flapper to be closed by the flow of product. As the float continues to rise, the internal <br /> mechanism 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 <br /> 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 <br /> continues to rise to the 95% fill level , the secondary closes, completely stopping the flow of fuel . <br /> Contact Us <br /> Corporate <br /> Job Opportunities <br /> Policies <br /> Legal Notices <br /> SYSTEM SOLUTIONS'" <br /> Franklin Electric <br /> 3760 Marsh Road <br /> Madison , Wisconsin 53718 USA <br /> Phone : + 1 (608) 838-8786 <br /> https:/lwww,franklinfueling.mm/en/products/service-station-hardware/overfilFprevention/overfilFprevention-valveNspecifications/ 314 <br />