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W.O.# NW1-2348303 <br />P '5y z 7 s AooencRX 88 <br />Cust Ref# : COCO-0015345128 <br />7150 overti11 Vahre in Tank Shut off Level Worksheet <br />Im ant: This Is meant to be supplemental worksheet and not a substitute to following the installation <br />manual instrurtions. All length measurements are in inches. Please contact the Authority Having Jurisdic- <br />tion IAM and review local, state, and national codes to determine the regulatory requirements governing <br />shut-off capaclty in your region, as w*II as take into account other considerations such as extreme tank tilt. <br />Take the following measurements with the valve I - <br />stalled in the tank: <br />Distance From the 7150 inlet tube flange to the cast <br />lug In the 7150 body (see figures), upper tube length <br />NM: the Upper Tube Length must be at least 16' to <br />include the protective bend in the rube. <br />(D)=� 3 <br />Distance from the 7150 inlet tube flange to the top and <br />bottom of lower tube, valve length. <br />fw1= <br />(u) = �� <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 & 61 TP mode is add 0.6") <br />fel - L7 L -- <br />From the tank calibration chart provided by tank manu- <br />factu rer find the dipstick number (Y) which corresponds <br />to the 100%vglvme. <br />(n=�1-Ll> <br />1. To determine shut-off percentage: <br />subtract upper tube length (p) from distance to tank <br />bottom A <br />(X)_(B)-(D)-2' _ u <br />Using the tank cal itwation chart provided by the tank <br />manufacturer determine the tank capacity at the cal- <br />culated (]t) dimension and the 1 o0%volume (Y) tank <br />capacity. <br />(X) tank capacity in gallons = 7� <br />(Y) tank capacity in gallons = u �' <br />So%= (X) rapacity/ (Y) capadg000= <br />Note: The overfill valve must be installed per AHl 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 pan 280 Subpart B Section 280.20 overfill <br />valves should be set to a maximum of 95%. <br />20 <br />