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71 SO Overfill Valve in Tank Shut off Level Worksheet <br /> l o 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.3W1sd1c <br /> tion(Ahi1)and review local,state,and national-codes to determine the regulatory requirements governing <br /> shut-off,capkicitY In your region,as well as take into account other consideration; such as e)ttreme tank tilt. <br /> Take the following measuremehts`with the valve in- [. _ <br /> stalled to the tame _ __• - _......._..-...__..... <br /> Distance from the 7150 inlet tube flange to the cast q <br /> -1 <br /> lug in the 71 SO body(see figures),upper tube length. <br /> Note: the Upper Tube Length must be at least 16"to in.. <br /> elude the protective bend in the tube, <br /> Distance from the 7150 inlet tube flange to the top and <br /> bottom of lower tube,vaive length. (D) <br /> (W) _654 Upper <br /> (U)_ /6 Y ,/z " Tube <br /> Distance from the 71 SO 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 JN = <br /> (OPW 6111 &61TP models add 0.6") (W)Valve <br /> O J` Length, <br /> I0 bottom of �. <br /> From the tank calibration chart provided by tank manu- cut <br /> facturer find the dipstick number(Y)which corresponds <br /> to the 100%volume. To Tank <br /> M 3A <br /> 1. To determine shut-off percentage: \0 Tank <br /> Subtract upper tube length(D)from distance to tank (U)Valve Chart <br /> bottom(B) Length, 100% <br /> (}(}=(f3}-(®)-Gr' =�/ / �• 6`t ~2=/O`/%Z top of cut Volume <br /> Dipstick <br /> Using the tank calibration chart provided by the tank <br /> manufacturer determine the tante capacity at the cal- <br /> culated(X)dimension and the 100%volume(Y)tank <br /> capacity. �A <br /> (M)tank capacity in gallons= Z 2 3 <br /> (Y)tank capacity in gallons <br /> SO%_ ()0 capacity/(Y) capacity x10©= q`l <br /> Note: The overfill valve must be Installed per AMJ require- <br /> ments and all applicable local,state,and national codes, If <br /> 12--+ the overfill valve is set above the allowable shut-off percent- <br /> r-- age the overfill valve must be removed and replaced. For <br /> / t gq j reference 40 CFR part 280 Subpart B Section 280,20 overfill <br /> valves should be set to a maximum of 95%. <br /> 2 <br />