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ARaendix 8 <br /> 7150 overfill naive in Tank Shut off revel Worksheet <br /> Im�rtant; 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.Haying.Jtixlsdk- <br /> tion (AHJ)and review local,state,and national codes to determine the regulatory requirements governing <br /> shut-off xap4icity In your region,as well as take into account other considerations such as extreme tank tilt. <br /> Take the followlrig m6asureriients with the valve in- [. <br /> -� <br /> stalled in the tank: _..... -- �---.. ._..._....-,..--._ <br /> Distance from the 71 SO inlet tube flange to the cast ^ <br /> iug in the 71 SO body(see figures),upper tube length. 4 ` <br /> Note: the Upper Tube Length must be at least 16"to in- � <br /> elude the protective bend in the tube. <br /> . <br /> Distance from the 71 SO inlet tube flange to the top and <br /> bottom of lower tybe,valve length. (p) <br /> (W)= I i2:1_? Upper <br /> (l})=R / 8r, Tube <br /> Distance from the 71 SO inlet tube flange to the bottom -=_ - - .. -of 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.Q.6") -z< (W)Valve <br /> v N Length, <br /> bottom of <br /> From the tank calibration chart provided by tank mann- � cut <br /> facturer find the dipstick number(Y)which corresponds °p <br /> to the 100%volume, (8) _ <br /> (Y).._ 2-S tf 3 1 To Tank <br /> (Y) <br /> 1. To determine shut-off percentage: N° Tank <br /> Subtract upper tube length (D)from distance to tank (U)Valve _... �° Chart <br /> bottom(B) Length, 100% <br /> (X)_(g)_(D)-2» o _ 2 103/z top of cut Volume <br /> Dipstick <br /> Using the tank calibration chart provided by the tank <br /> manufacturer determine the tante capatcity at the cal- <br /> culated(X)dimension and the 100%volume(Y)tank <br /> capacity. <br /> (X)tank capacity in gallons= 2 3� —4 Z- <br /> (Y) <br /> (Y)tank capacity in gallons= 2.5 t - -s---� - <br /> SO%=(X)capacity/(Y)capacity x100 <br /> Note: The overfill valve must be Installed per AHJ require- <br /> ments and all applicable local,state,and national codes. If <br /> Z3 6Z the overfill valve is set above the allowable shut-off percent- <br /> 0 D age the overfill valve must be removed and replaced, For <br /> -2-5,1(31 reference 40 CFR part 280 Subpart B Section 280.20 overfill <br /> valves should be set to a maximum of 95%. <br /> 2 <br />