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epoenix BB <br /> 71 SO Overfill Valve in Tank Shut off Level Worksheet <br /> Important: This is meant to be supplemental worksheet and not a substitute to following the installati <br /> manual Instructions. All length measurements are In Inches. Please contact the Authority Having Juris <br /> tion(AHJ)and vlew 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 tlh. <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,mist <br /> lug In the 71 SO body(see figures),upper tube length. <br /> Note: the Upper Tube Length must be at least 16*to in- <br /> elude the protective bend in the tube. <br /> i <br /> �:<rDlspoce from the 71 SO inlet tube flange to the top and r <br /> y „.ph(tfirrioftowertli_be,valvelength. (]Pb <br /> e [y Up'(U)�'. i .. t Tu <br /> y ' :irfrom the 71 SO inlet tube flange to the bottom -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 models add 0.6") (W)Valve <br /> (a)= % S .'7 >S Length, <br /> bottom of <br /> From the tank calibration chart provided by tank manu- cut <br /> fa�urerfindthedipsticknumber(l)whichcorresponds <br /> to the 100%volume. \ <br /> (Y)= 1 I ri -(-L-c To Tank <br /> 1. To determine shut-off percentage: Tank b <br /> Subtract upper tube length(D)from distance to tank (U)Valve Chart <br /> bottom(B) r Length, 100% <br /> (X)=(B)-(D)-2"!= h L, �P z top of cut + Volume <br /> DI pstick <br /> Using the tank calibr chart provided by the tank <br /> manufacturer determ�the tank rapacity at the cal- <br /> culated(X)dimension and the 100%volume(Y)tank <br /> capacity. 1 <br /> (X)tank capacity In gallons= 5(,q L) <br /> (Y)tank capackOn gallons= <br /> SO%=(X)capacity/(Y)capacity x100 <br /> Note:.The overfill valve must be inStalted Pet AtUiequlre-� <br /> rf: ments and all applicable local,state,anp-n.Waral c06e3: <br /> Ae overfill valve is set above the allowable shut-off percent§. <br /> je 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 /> ' z, <br /> SEP242019 <br /> ENVIRONMENTAL HEALTH <br /> pFPAPTnr:PI\IT <br />