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0 T- ARRendix <br /> 7150 Overfill Valve in Tank Shut off level Worksheet <br /> ImRortant This is meant to be supplemental worksheet and not a substitute to f_ollowtag the lnstallatlon <br /> manuaUinsW�ions. Illi en measuremeMiare n-incfies. Please contact the Authority Having Jurisdic- <br /> tion MHA 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 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 71 SO body(see figures),upper tube length. <br /> Note: the UpperTube Length must be at least 16"to in- <br /> clude the protective bend in the tube. <br /> (0)_ _ <br /> Distance from the 71 SO Inlet tube flange to the top and <br /> bottom o I we ube,valve length <br /> M= (D) <br /> (U)= Upper <br /> L Tube <br /> Distance from the 71 SO ihlet tube flan a the bottom <br /> of the tank. Note;If a tank bo Wrote or Is present 1t <br /> may be necessary to add this thickness to dimension <br /> (OPW 5 i &61TP models add 0.6") (W)Valve <br /> (gl- 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%volume. (g) <br /> (Y)= To Tank <br /> 1. To determine shut-off percentage; (Y} <br /> Subtract upper tube length(D)from distance to tank (U)ValveTank <br /> bottom(B) Chart <br /> 1 d 3 Length, 100%� <br /> (Xj a(B)-JD)-2"= l3i tap of cut <br /> Volume <br /> Using the tank calibration chart provided by the tank Dipstick <br /> — <br /> manufacturer determine the tank capacity at the cal- <br /> culated(X)dimension and the I0096volume(Y)tank � <br /> capacity. <br /> (X)tank capacity In gallons <br /> (Y)tank capacity in gallons= s <br /> 50%=(X)capacity I(Y)capacity x100= Z olo <br /> Note: The overfill valve must be installed per AH]require- <br /> ments and all applicable local,state,and national codes. if <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 6 Section 280.20 overfill <br /> valves should be set to a maximum of 95%. <br /> 21 <br />