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A o ' <br /> Appendix A <br /> 7150 Overfill Valve Upper Tube Calculation Worksheet <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 tank tilt. <br /> Desired tank capacity for shut-off: SO%= 7 <br /> Dipstick Number on Tank Chart that corresponds to 100%volume(Y) -4/4 :F (N.) <br /> Dipstick Number on Tank Chart that corresponds to 500,S -1 S(X)_ (Ot��t( — � (-x) <br /> Upper Tube Reference NumberZ=Y-X ((✓ = (Z) <br /> Upper Tube Depth Inside Tank C=Z-2" 2 <br /> Distance from top sealing surface for 7150 Lip'to inside the r C( = (C) <br /> top of Storage Tanks A= <br /> For Non-Testable 7150 models grilly <br /> In all cases for bon-testable 715o models,the top of the valve body must protrude at least 6 4S into the tank to <br /> provide a minimal clearance for proper operation' Additionally the total Upper Tube Length must be at least 16' <br /> of length to include the protective bend in the tube. <br /> Is C less than 6'/e" Yes f �6 <br /> If NO,Upper Tube Length(D)=C+A V <br /> If YES,Upper Tube Length(D)=6'h'+A <br /> Upper Tube Length <br /> For Testable 7150 models only <br /> In all cases for Testable 71 SO models,the top of the valve body must protrude at least 6 Yi into the tank to provide <br /> a minimal clearance for proper operation.' Additionally the total Upper Tube Length must be at least 14!s'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 vs' <br /> If YES,Upper Tube Length(D)-6is'+A- 14:" <br /> Upper Tube Length= <br /> Sealing surface may be the tap of the fete Seal Adaptor,the built n seating ledge inside some spill containers,at on non vapor <br /> right appficanons the top of rile pipe nipple <br /> ' Some Undetgraund Storage conks utilize a mansvoy system at the top. Make sure to use the top of the storage rank for measure <br /> ment ondnor to top a rhemanivay Consuls your underground tank manufacturer for height of the manway <br /> ' This meosuremenr is taken from the seam where the upper rube is orrached!a the valve body to the inside ofthe tank top <br /> i <br />