Laserfiche WebLink
Determine drop tube lengths <br /> Defender Spill Containment (Ref.) <br /> Seat surface of upper drop tube <br /> 0 <br /> X Top of Tank <br /> Upper Drop Tube <br /> —I �— Final Shutoff Volume"* <br /> l 7q <br /> Overfill Prevention Valve <br /> (U.S.T.) <br /> Lower <br /> Drop Tube <br /> «Y„ <br /> 6" (152 mm) Max* <br /> Bottom of Tank Not to Scale <br /> * if local codes require this distance to be smaller, <br /> subtract less than 6" N 52mm) <br /> Calculate final shutoff volume <br /> To find Upper Drop Tube length "X" To find Lower Drop Tube length "Y" <br /> .39 Actual Tank Capacity Drop tube seer <br /> Final shutoff <br /> - Gallons "A" " surface to °g" <br /> 11 <br /> bottom of tank volume height <br /> X (Multiply) - (Subtract) - (subtract) <br /> 95 Typically 95%** �g„ 3 " Final shutoff 153/4" (400 mm) OffsePV tength <br /> volute height <br /> Final shutoff volume - (stract) - (subtract) <br /> ub <br /> � C7Position and 6" (152mm) Tank bottom <br /> (gallons) 2'/z"(63.5 mm) mounting I I clearance <br /> adjustment <br /> _ (equals} _ (equals) <br /> 0 0 = B „X„ 'Z • ; Y„ <br /> Final Shutoff Volume Height Upper Drop Tube Length Lower Drop Tube Lergth <br /> 6 <br />