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i"('.lr0utLtiV FuAgv,r <br /> . <br /> AppendixA fI , YCPL( S� fW <br /> 71 SO Overfill Valve Upper Tube Calculation Worksheet (r-It,'t <br /> Important: 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 tanktilt. <br /> Desired tank capacity for shut-off. SO%= <br /> Dipstick Number on Tank Chart that corresponds to SO%= (Y) <br /> Tank Diameter(100%volume) (Y) <br /> Upper Tube Reference NumberZ=Y-X © (Z) <br /> — 2 <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 Tank2 A= <br /> For Non-Tesfabjle 71SO models only <br /> In all cases for non-testa SO models,the top of the valve body must protrude at leas z"into the tank to <br /> provide a minimal clearance for p operation' Additionally the totaZUpper ength must be at least 16" <br /> of length to include the protective bend in`th e. <br /> Is C less than 61/2" o <br /> 3 <br /> If NO,Upper Tube Length(D)=C+A <br /> If YES,Upper Tube Lengt 1hjD)-6-/2"+A <br /> rr <br /> Upper Tube Length= 30 <br /> For Testable 71 SO models only <br /> In all cases for Testable 71 SO models,the top of the valve body must protrude at least 6 1/2"into the tank to provide <br /> a minimal clearance for proper operation' Additionally the total Upper Tube Length must be at least 14 lb"of <br /> length to include the protective bend in the tube. <br /> Is C less than 5" Ye / No <br /> a3'S <br /> If NO,Upper Tube Length(D)=C+A-1 1/2 <br /> If YES,Upper Tube Length(D)=6 /2"+A- 1 1/2" y <br /> Upper Tube Length= 30 <br /> Sealing surface maybe the top of the Face Seal Adaptor,the built in sealing ledge inside some spill containers,oron non-vapor <br /> tight applications the top of the pipe nipple <br /> 2 Some Underground Storage tanks utilize a manway system at the top. Make sure to use the top of the storage tank for measure- <br /> mentandnot to top of themanway. Consultyour underground tank manufacturer for height of the monway <br /> 3 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 />