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Z Sho (—Al - 6 0 <br /> YJ—// IdAiiid L '4vc- <br /> 1 Z Aac►endix_B S�-0&V 6 <br /> / / 71 SO Overfill Valve in Tank Shut off Level Worksheet <br /> I MRor_�ant. 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 /> 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 7150 body(see figures),upper tube length. <br /> Note: the Upper Tube Length must be at least 16"to in- <br /> clude the protective bend in the tube. <br /> em <br /> (D)_ -�__ __ .t� I <br /> Distance from the 71 SO inlet tube flange to the trap and <br /> bottom of lower tube valve length. I D) <br /> upper <br /> I <br /> I <br /> (U}� _.���� i Tube <br /> I <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 m dels add 0.6") W Valve <br /> (B)_ G! 13 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 Y)he 100%volume (B), <br /> I To Tank <br /> _ \� <br /> i <br /> iY) <br /> 1. To determine shut-off percentage: ; I Tank <br /> Subtract upper tube length(D)from distance to tank (U}Valve Chart <br /> bottom(B) i ! Length; DO% <br /> (X)_(B)-(D) -2"=__.! ._ �' top of cut Volume <br /> ��----- � j Dipstick <br /> Using the tank calibration chart provided by the tank <br /> manufacturer determine the tank capacity at the cal- <br /> culated(X)dimension and the 100%volume(Y)tants 1 E <br /> capacity. -7 5� <br /> (X}tank capacity in gallons= <br /> (Y)tank capacity in gallons= <br /> SCi°ro=(X)capacity 1(Y)capacity 000= <br /> Note: The overfill valve must be installed per AH1 <br /> require-Orients,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 B Section 280.20 overfill <br /> valves should be set to a maximum of 95%, <br /> 21 <br />