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Fl, PT ID 13/,/ �r �1 � "b 97 <br /> Appendix BB <br /> 71 SO Overfill Valve in Tank Shut off Level 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 /> Take the following measurements with the valve in- <br /> stalled in the tank: <br /> Distance from the 7150 inlet tube Flange to the cast <br /> lug in the 7150 body(see figures),upper tube length. <br /> Note: th•ti Upper Tube Length must be at least 16"to in- <br /> clude the protective bend'n the tube. <br /> (o) _ to N <br /> D stance from the 71SO inlet tube flange to the top and l <br /> JVt.' .-1 o 01ve �' CI� 5:Vv: <br /> (D) <br /> Upper l <br /> Tube j <br /> i <br /> D stance from the 71 SO inlet tube Flange to the bottom <br /> � � 4 <br /> of the tank. Note:If a tank bottom protector is present it <br /> may be necessary to add this thickness to dimension I' <br /> (OPW 6111 &6r TP models add 0.6") I ( V)Valve <br /> (B) , z- 'r <br /> Length, <br /> bottom of <br /> From the tank calibration chart provided by tank manu- cut <br /> facturer find the dipstickr,umber(Y)which corresponds r; <br /> to the 100%volurpelr ;B) <br /> S l ` <br /> /I ,1 <br /> (Y)= To Tank <br /> (Y) <br /> 1l <br /> 1. To determine shut-off percentage: , Tank I� <br /> Subtract upper tube length il), from distance to tank (U)Valve Chart <br /> bottom(B) 3/ ; Length, 10000 <br /> (X) _(B)- (D)-2"=�_L`� top of cut Volume y <br /> Dipstick ti <br /> Using the tank calibration chart provided by the tank <br /> Ir <br /> manufacturer determine the tank capacity at the cal- t <br /> ;1 <br /> culated(X}dimension and the 100%volume(Y)tank <br /> capacity. <br /> (X)tank capacity in gallons= <br /> (Y)tank capacity in gallons= <br /> SO%=(X)capacity 1(Y}capacity x100= o.q � <br /> Note: The overfill valve must be installed per AHJ require- <br /> ments and all applicable local,state. and national codes. If <br /> the overfill valve-s set above the allowable shut-off percent- <br /> age the overfill valve must be removed and replaced, For <br /> Werence 40 CFR part 280 Subpart B Section 280.20 overNl <br /> valves should be set to a maximum of 9501°. <br /> �1 <br />