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T3 <br /> ptotoendix� <br /> 71 SO overfill Valve 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.Jurisdic-. <br /> tion (AHJ)and review local,state,and national codes to determine the regulatory requirements governing <br /> shut-off xap;�city in your region,as well as take into account other considerations such as extreme tank tilt. <br /> Take the following reasurements'with the valve in- C. . <br /> stalled in the tank: <br /> -i( --_ .__..�. ....__... <br /> Distance from the 7150 inlet tube flange to the east S l <br /> lug in the fit SO body(see figures),upper tube length. j <br /> Note: the Upper Tube Length must be at least 16"to in- <br /> clude the protective bend in the tube. o <br /> V_ III <br /> Distance from the 71 SO inlet tube flange to the top and I <br /> bottom of lower tube,valve length. (D) <br /> (W)=-s�� " Upper <br /> M l4 /meg 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 _ <br /> (OPW 6111 &61TP models add 0,6") r (W)Valve <br /> (�)� Length, , t <br /> bottom of z <br /> cs— <br /> From the tank calibration chart provided by tank manu- cut <br /> facturer find the dipstick number(Y)which corresponds (6) <br /> to the 100%volume. To Tank <br /> (Y)=__/I g <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 /> (X) _(B)_(D)-2"_ (J SS�- „�-2 =/O14 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 /> So%=() )capacity/(Y)capacity x100= Note; The overfill valve must be installed per AHJ require- <br /> ments and all applicable local,state,and national codes. If <br /> xioo = �►'Y f/t/ <br /> the overfill valve is set above the allowable shut-off percent- <br /> 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 />