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T2^ g sy J9�no� <br /> 7150 overfill naive in Tank 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 are in inches. please contact the Authority.Having.Jur1sdic <br /> tion(AHJ)and review local,state,and nationai'codes to determine the regulatory requirements governing <br /> shut-off,cap4city in your region,as well as take into account other considerations such as e)ttreme tank tilt. <br /> Take the following measurements 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 7150 body(see figures),upper tube length. <br /> 'Mote: the Upper Tube Length must be at least 16 to in- <br /> clude the protective bend in the tube. <br /> Distance from the 7150 inlet tube flange to the top and <br /> bottom of lower tube,valve length. (D) <br /> (W)= f 8 ( 549 i� Upper <br /> (U) 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 &61 TP models add 0,6") = _ (W)Valve <br /> 8S 11 � C� � Length, ...•-' <br /> 00 bottom of <br /> cr' cut 1 <br /> From the tank calibration chart provided by tank manu- 17- ri- <br /> facturer find the dipstick number(Y)which corresponds (8) <br /> to the 100%volume, To Tank <br /> (Y) <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) Length, 100% <br /> ()o _(B)_(D)-2�, =�9j-Z Z :.IOy top of cut o4 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%=()0 capacity/(Y) capacity x10fl= g Y' <br /> Note: The overfill valve must be installed per AHJ require- <br /> ments and all applicable local,state,and national codes. If <br /> SOS the overfill valve is set above the allowable shut-off percent- <br /> 10369 x�O 0 `� S6 age the overfill valve must be removed and replaced. For <br /> reference 40 CFR part 280 Subpart 8 Section 280.20 overfill <br /> valves should be set to a maximum of 95%. <br /> 2 <br />