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T3 a(y,t4j,� 72_ efolwton&_ 1 <br /> Z U� 7`Iz <br /> Ap�ndix B <br /> 7150 Overfill Valve in Tank Shut ort Level Worksheet <br /> the installation N <br /> Important:This is meant to be su lemental w^rksheet and nota substitute to following W <br /> hrisdic- 00 <br /> manual instructions. All length measurements are In Inches."ease contact the Authority FWh+9 00 <br /> tion(AFU)and review local,state,and national codes to determine the regulatory requirements goveming O <br /> shut-off capacity In your region,as well as take into account other consideratiena such as extreme tank t1k 00 <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:the Upper Tube Length must be at least 16'to <br /> include the pr tective bend in the tube. <br /> (D) <br /> Distance from the 71 SO inlet tube flange to the top and 77 <br /> bottom of lower tube,valve length. (D) <br /> (W)= n/A Upper <br /> (U)= /i/A - Tube <br /> Distance from the 7150 inlet tube flange to the bottom <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 611)JL61 TP models add 0.6') (W)valve <br /> (B)_- j Length, <br /> bottom of j <br /> From the tank calibration chart provided by tank manu- cut <br /> facturer find the dipstick number(l)which corresponds <br /> to the 100%volume. (e) <br /> To Tank <br /> 1. To determine shut-off percentage: Tank <br /> Subtract upper tube length(D)from distance to tank (U)valve Chart <br /> bottom(B) Length, 100%Vol- <br /> (X)_(B)-(D)-2'_ --— top of cut ume Dip- <br /> stick <br /> Using the tank calibration chart provided by the tank <br /> manufacturer determine the tank capacity at the cal- ` <br /> culated(X)dimension and the 100%volume(Y)tank Y <br /> capacity. i <br /> (X)tank capacity in gallons= CJ <br /> r <br /> (Y)tank capacity in gallons= _A1-- - _ ;Q <br /> m <br /> SO%=(X)capacity/(Y)capacity x100=_ %,� <br /> Note: The overfill valve must be installed per AM require- n <br /> ments and all applicable local,state,and national codes. If Q <br /> the overfill valve is set above the allowable shut-off percent- C) <br /> age the overfill valve must be removed and replaced. For <br /> ,,,M6.reference 40 CFR part 280 Subpart B Section 280.20 overfill O <br /> valves should be set to a maximum of 95%. L-` <br /> Ln <br /> W <br /> 20 <br /> 00 <br />