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RECEIVED BY EHD <br /> 7/18/2022 - during inspection <br /> Appendix 8 <br /> 71 SO Overfill Valve in Tank Shut off level Worksheet <br /> Impgrtant: 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 Haying Jurisdic- <br /> tion(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 following measurements with the valve in- I <br /> stalled in the tank: - <br /> I: --� <br /> Distance from the 71 SO inlet tube flange to the cast J; <br /> lug in the 7150 body(see figures),upper tube length. <br /> Note: the Upper Tube Length must be at least 16"to <br /> include the protective bend in the tube. <br /> 101= <br /> Distance from the 71 SO inlet tube flange to the top and <br /> bottom of lower tube,calve length. (D) <br /> (W)= <br /> fu)= Upper <br /> Tube <br /> Distance from the 71 SO inlet tube flange to the bottom _. <br /> of the tank. (Vote:If a tank bottom protector is present it <br /> may be necessary to add this thickness to dimension y <br /> (DPW 6111 &61 TP models add 0.6") (WJ Valve <br /> (B)_ Length, <br /> bottom of <br /> From the tank calibration chart provided bytank manta- cut <br /> facturerfind the dipstick number(Y)which corresponds ' <br /> to the 100%volume. ($1 <br /> (y) To Tank <br /> 1. To determine shut-off{percentage: <br /> Tank <br /> Subtract upper tune length(D)from distance to tank (u)Valve chart <br /> bottom (B) Length, 100%Vol- 1 <br /> (x)_(B)--(0)-2"- top of cut ume Dip- <br /> stick <br /> Using the tank calibration chart provided by the tank r" <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 w ------ _- ._--__ <br /> SO%_(X)capacity 1(Y)capacity x1 QQ= <br /> Aute: The overfill valve must be installed per RHJ 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 R Section 280.20 overfill <br /> valves should be set to a maximurn of 9594. <br /> 20 <br />