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5 n�10C T U t <br />Am( ridix_A <br />71SOOverfill Valve Upper Tube Calculation Worksheet <br />IMP_ rtAnt.- This is meant to be supplemental worksheet and not a substitute to following the installation <br />manual instructions. All length measurements are in inches. Please contact the Authority <br />Having Jurisdic- <br />tion (AHJ) and review local, state, and national codes to determine the regulatory requirements governing <br />shut-off capacity in your region, as well as take into account other considera;fons such as extreme stank tilt. <br />Desired tank capacity for shut-off: <br />SO%= <br />Dipstick Number on Tank Chart that corresponds to 100% volume (y)( <br />(tip) <br />y) <br />Dipstick Number on Tank Chart that corresponds to SO% (X) _ <br />Rfit�t1 <br />— l.� (X) <br />Upper Tube Reference NumberZ=Y-X <br />FE -751 (7) <br />Upper Tube Depth Inside Tank C = Z-2" <br />Distance from top sealing surface for 7150 Lip' to inside the <br />(f <br />top of Storage Tank2 <br />A= <br />For Non -Testable 71 SO rLtodels onfv <br />In all cases for non -testable 7150 models, the top of the valve body must protrude at least 6 1/2" into the tank to <br />provide a minimal clearance for proper operation.' Additionally the total Upper Tube Length must beat least 16" <br />of length to include the protective bend in the tube. <br />Is C less than 611/2" Yes / No <br />If NO, Upper Tube Length (D)= C +A <br />If YES, Upper Tube Length (D)= 6'112 "+ A 5 <br />Upper Tube Length = <br />For Testable 7150 models only <br />In all cases for Testable 7150 models, the top of the valve body must protrude at least 61W into the tank to provide <br />a minimal clearance for proper operation.' Additionally the total Upper Tube Length must beat least 14'h" of <br />length to include the protective bend in the tube. <br />Is C less than 5" Yes / No <br />I` N0, Upper Tube Length (D)= C+ A - 1 'h" <br />If YES, Upper Tube Length (D) = 6'h" + A - 1 'h " <br />Upper Tube Length = <br />' Seating surface maybe the top of the Face Seal Adaptor, the built in sealing ledge inside some spill containers, or on non -vapor <br />tight applications the top of the pipe nipple <br />' Some Underground Storage tanks utilize a manway system at the top, Make sure to use the top of the storage tank for measure- <br />menrandnottolopofthemoni,vay. Consult your underground tonkmanufacturer for height ofthe manway <br />' This measurement is taken from the seam where the upper tube is attached to the valve body to the inside ofthe tank top. <br />K w ki� <br />