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SITE SGtt/1 MI <br /> �iuP' <br /> 54uP2r41:�14 Appendix B <br /> 71 SO Overfill Valve In Tank Shut off Level Worksheet <br /> Impgriaht: 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 (AHA and review local, state, and national codes to determine the regulatory requirements governing <br /> shutoff capacity In your region, as well as take Into account other considerations such as extreme tankUlt. <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 tuba length . <br /> Note: the Upper Tube Length must be at least 16' to In- <br /> clude the protective bend In the tube. i 1, <br /> (o ) = 5 -1- SS I ; <br /> Distance from the 71 SO Inlet tube flange to the top and �— <br /> bottom of lower tube, valve length . r <br /> ID) l(W) = Upper <br /> ( U) _ Tube <br /> r <br /> Distance from the 71 SO Inlet tube flange to the bottom {- J <br /> of the tank. Note: If a tank bottom protector 1s present It T <br /> may be necessary to add this thickness to dimension If <br /> (DPW 6111 & 61TP models add 0,6") (V4 Valve <br /> _ ' �� S Length, <br /> (B ) <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. <br /> (Y ) = ,w '7 � To Tank <br /> �.� (Y) <br /> 1 . To determine shut-off percentage: ! Tank <br /> Subtract upper tube length (D) from distance to tank (U) Vaive _ Chan <br /> bottom (B) Length, 100% <br /> (X) = (6) - (b) - 2" i top of cut Volume <br /> ri Dipstick �I <br /> Using the tank calibration chart provided by the tank i <br /> manufacturer determine the tank capadty at the cal- <br /> culated (X) dimension and the 100% volume (Y) tank I ! 1 <br /> capacity. <br /> (X) tank capacity In gallons = , f <br /> (Y) tank capacity In gallons = 5 p S <br /> 50% _ (X ) capacity fly) capacity x100 = Cl / . Y%b Note: The overfill valve must be Installed per AHJ require- <br /> ments and all applicable local, state, and national codes. If <br /> G, is 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 pan 280 Subpart B Section 280.20 overfill <br /> valves should be set to a maximum of 95W <br /> 21 <br /> P�t .Ia ,., tio ✓� Ual ., es q .n � 71 Sb `( .Itkalo\ 4L QrtaVLVvkiQ ✓t <br /> WVVLA <br /> l ✓ s � hl � � k'i0 ✓1 (M'ed / "laiv krvtgM ov <br />