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715®Overfill Valve in Tank Shut off Level Worksheet <br /> irna� This is meant to be supplemental worksheet and not a substitute to following the installation <br /> manual instructions, Ali length measurements are in inches, please contact the Authority.Having.At(rlsdic-, <br /> bion(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 foliowlr d measuremehts with the valve in- <br /> stalled in the tank: <br /> Distance from the 7150 inlet tube flange to the cast I <br /> lag in the 715®body(see figures),upper tube length. ! <br /> Note: the Upper Tube Length must be at least 16 to in.. <br /> clude the protective bend in the tube. <br /> (D) <br /> Distance from the 7150 inlet tube flange to the top and <br /> bottom of lower tube,valve length. (D) <br /> (U1!) `/z Upper <br /> (U) r Tube <br /> ,_ <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 _ � — <br /> (OPW 6111 &61TP models add 0.6") — °a (W)Valve <br /> to Length, <br /> 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%vol m . To Tank <br /> (Y)=____.11_x__t <br /> (Y) <br /> 1. To determine shut-off percentage: Tank <br /> subtract upper tube length(D)from distance to tank (U)Valve _ Chart <br /> bottom(B) 0' Length, 100% <br /> (x)=(B)M(D)- —Z 1 US top of cut Volume <br /> Dipstick <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 <br /> capacity. <br /> (X)tank capacity In gallons= <br /> (Y)tank capacity in gallons <br /> 50%=() )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 /> /00 =9465 the overfill valve Is set above the allowable shut-off percent- <br /> x 4 K-��r age the overfill valve must be removed and replaced, For <br /> 03 reference 40 CFR part 280 Subpart 8 Section 280,20 overfill <br /> valves should be set to a maxlmum of 95%. <br /> 2 <br />