Laserfiche WebLink
Appendix A <br /> 71 SO Overfill Valve Upper Tube Calculation Worksheet <br /> Importanu 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 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 considerations such as extreme tank tilt. <br /> (desired tank capacity for shut-off: SO%= <br /> Dipstick Number on Tank Chart that corresponds to 100% volume (Y) _ � {y} <br /> Dipstick Number on Tank Chart that corresponds to SO% (X) _ [�� (X) <br /> Upper Tube Reference Number Z=M (Z) <br /> Upper Tube Depth Inside Tank C = Z-2" <br /> Distance from top sealing surface for 71 SO Lip' to inside the (C) <br /> top of Storage Tankz A= <br /> For ( gn:Testable 71 SO models only <br /> In all cases for non-testable 71SO models, the top of the valve body must protrude at least 61/z" into the tank to <br /> provide a minimal clearance for proper operation .3 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 61/2" Yes / No <br /> If NO, UpperTube Length {D)= C + A <br /> If YDS, Upper Tube Length (D)= 6 'h "+ A <br /> Upper Tube Length = <br /> For Test (P 71 SO Mgdels only <br /> In all cases for Testable 7150 models, the top of the valve body must protrude at least 6 '/s" into the tank to provide <br /> a minimal clearance for proper operation.3 Additionally the total Upper Tube Length must beat least 141/2" of <br /> length to include the protective bend In the tube. <br /> Is C less than 5" Yes / No <br /> If NO, Upper Tube Length (D)_ C + A ~ 1 "/z " <br /> IfYES, UpperTube Length (D) = 6 '/z" + A � 1 1/z " <br /> Upper Tube Length = <br /> ' Sealing surface may be the top of the Face Seal Adaptor, the built in seating ledge Inside some spill containers, oron non -vapor <br /> tight applications the top of the pipe nipple <br /> 7 Some Underground Storage tanks utilize a manwaysystem at the top. Mokesure to use the top ofthe storage tank formeasure- <br /> mentandnottotopofthemanway. Consultyour underground tank manufacturer for height of the manwoy <br /> ' This measurement is taken from the seam where the upper tube Is attached to the valve body to the inside of the tank top. <br /> 19 <br />