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W.O.# NW1-2348303 <br />Cl Gk{Vr Uva <br />`y -n s <br />Aope dry .ix P <br />Cust Ref# : COCO-0015345128 <br />7150 Overfril Valve in Tank Strut off Level Worksheet <br />im ant. This is meant to be supplemental worksheet and not a substitute to following the installation <br />rnanuaf instructions. All length measurements are in inches. please contact the Authority Haring 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 tanktlit. <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 1n 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 />(D) <br />Distance from the 7150 inlet tube flange to the top and <br />bottom of lower tube, valve length. <br />IN <br />Dista <br />Distance from the 71 SO inlet tube flange to the battom <br />of the tank. Note: If a tank bottom protector is present it <br />may be necessaryto add this thickness to dimension <br />(OPW 6111 & 61 TP models add 0.61 <br />(B) = _/2C - - <br />From the tank calibration chart provided by tank manu- <br />facturer fond the dipstick number (Y) which corresponds <br />to the 1 va e. <br />1. To determine shut-off percentage: <br />Subtract upper tube length (p) from distance to tank <br />bottom (6) <br />Using the tank caiibratlon chart provided by the tank <br />manufacturer determine the tank capacity at the cal- <br />culated (x) dimension and the 1 Qo%volume (Y) tank <br />capacity. <br />S7 <br />()0 tank capacity in gallons = �/.�� <br />(Y) tank capacity in gallons = (_ 7 <br />e' � <br />SO%= (X) capacity/ (Y) capacity u10O =_7 _ 6 <br />Nate: The overfill valve must be installed per AW 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 8 Section 2 80 .20 overfill <br />valves shauid be set to a maximum of 95%6 <br />20 <br />Apendix b <br />