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WN <br /> ARagn—dix 8 <br /> 71 SO Overfill Valve In Wank 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'a're in inches. Please contact the Authority.Haying.Jttrisdk- <br /> Bion (AHJ)and review local,state,and national cdes to determine the regulatory requirements governing <br /> shut-off xap4city in your region,as well as take into account other considerations such as extreme tank tilt. <br /> Take the following Fheasurements with the valve in- [. _ <br /> stalled in the tank: -` <br /> Distance from the 71 SO inlet tube flange to the cast <br /> lug in the 71 SO body(see figures),upper tube length. I <br /> Mote: the Upper Tube Length must be at least 16"to in- <br /> clude the protective bend in the tube. <br /> (D) V2- p'- <br /> Distance from the 71 SO inlet tube flange to the top and <br /> bottom of lower tube,valve length. (D) <br /> (W)_ /� 2�_ Upper <br /> Tube <br /> Distance from the 71 SO inlet tube flange to the bottomof the tank, Note;If a tank bottom protector is present it <br /> may be necessary to add this thickness to dimension _ <br /> (OPW 6111 &61TP models add 0,6") - M N (W}Valve <br /> 8 3/4' Length, <br /> bottom of <br /> From the tank calibration chart provided by tank manu- cut <br /> 1NO <br /> facturer find the dipstick number(Y)which corresponds <br /> to the 100%volume. (B} <br /> 25 H 3 i To Tank <br /> (Y} <br /> 1. To determine shut-off percentage: po Tank <br /> Subtract upper tube length (D)from distance to tank (U)Valve _.. Chart <br /> bottom(B) / Length, 100% <br /> (X)_(g)-(D)-2" =S 1�6 3�y —�8 Z�—Z 107— 3/y top of cut Volume <br /> Dipstick <br /> Using the tank calibration chart provided by the tank <br /> manufacturer determine the tank cape(city at the cal- <br /> culated(X)dimension and the 100%volume(Y)tank <br /> capacity. <br /> (X)tank capacity in gallons= Z 3 �3 9 <br /> (Y)tank capacity in gallons= Z <br /> SO%_(X)capacity/(Y)capacity x100= 4 Z• <br /> Note: The overfill valve must be installed per AHJ require- <br /> ments and all applicable local,state,and national codes. If <br /> 'S <br /> 2 x ADO Z the overfill valve is set above the allowable shut-off percent- <br /> s — age the overfill valve must be removed and replaced. For <br /> reference 40 CFR part 280 Subpart B Section 280.20 overfill <br /> valves should be set to a maximum of 95%. <br /> 2 <br />