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Super Unleaded <br /> Alis <br /> 71 SO overfill Valve in Tani:Shat off Level Worksheet <br /> IM122rtant: 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 reviejAf local,state,and national codes to determine the regulatory requirements goertting <br /> �• <br /> shut-off capacity in your region,as well as take into account other considerations such it extreme e tank tilt. <br /> Take the following measurements with the valve in- <br /> stalled in the tate: j <br /> Distance from the 71 SO inlet tube flange to the cast _._ . <br /> lug in the 71 SO body(see figures),upper tube length. <br /> Dote: the Upper Tube Length must be at least 16"to in- <br /> clude therotective bend in the tube. <br /> A.5" <br /> (D) <br /> Distance from the 7150 inlet tune flange to the top andbot --+�- <br /> €om .�gr tube, valve length. E I <br /> (U)= 170.5" Eloper t <br /> Tube <br /> I <br /> Distance frorY;the 71 SO inlet tube Range to the bottom <br /> of the tank. Mote:if a tank bottom protector is present it <br /> may be necessary to add this thickness to dimension <br /> (OPW61 t15" 1ZP models add o.S t I <br /> (8) (WI Valve <br /> Length. <br /> From thecalibration i bottom of I <br /> the tank chart provided by tank ,,__�� cut j <br /> manu- <br /> facturer find the dipstick number(Y)which corresponds _ ' <br /> to the 101�",volurne. <br /> (Y)= To <br /> Fank i <br /> 1. To determine shut-off percentage: i ' l ) <br /> r 3 Tank <br /> Subtract upper tube length (D)from distance to tank (U)Valve Chart <br /> bottom(8) H Length, �, <br /> (X)=(a)-(Q)-2"- 96.5 toil of cut <br /> Volume <br /> Dipstick <br /> Using the tank calibration chart provided by the tank 4 <br /> manufacturer determine the tank capacity at the cal- j t <br /> culated(X)dirnension and the 1€3€ %volume(Y)tank <br /> capacity. i <br /> 7,635 <br /> 4X)tank capacity in gallons= t <br /> (Y)tank capacity in gallons_ 8,040 I <br /> so%=(X)capacity/(Y)capacity X100= 94.96 � <br /> Dote: The Overfill valve roust be installed per Al-il require <br /> ments and all arplicable local,state,and national codes. if <br /> the overfill valve is set above the alto: able shut-off percent- <br /> age the overfslf valve must be removed and replaced. For <br /> reference 44 CFR part 280 Subpart B Section 280.24 overfill <br /> valves should be set to a maximum of 95�_ <br /> 21 <br />