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• � �- S 1 acv e. <br /> 71 So Overfill Valve in Tank Shut off level Worksheet <br /> ll This Is meant to be supplemental worksheet and not a substitute to fallowing the Installation <br /> man. at lnstuuctions„ Ali length measurements are In inches, Please contact the Authority Having Jewlsdiloi, <br /> tionlMol) and review local, state, and nationef codes to determine the regulatory requirements governing <br /> Aujoeoff cap@gljy In your region, as well as take into account other considoratlons such as wEtreme tank tllt. <br /> T akq the following r' WAsureiirentirwith the valve in [ , , <br /> sitaiid in the tank: ... .. .. ..•10,40'" , � . � :. ;,. .. .. .�„ 41 s2q14~%1f4 <br /> =.=a , <br /> Disthnce from the 7`f SO Inlet tube flange to the cost i <br /> Bug in the 71 So body ( see figures), upper tube length , <br /> Notpe. the Upper Tube length must be at least 16" to Into <br /> elude the protective bend in the tube , <br /> (D) <br /> Distfance from the 70i SO Inlet tube flange to the top and <br /> bottom of lower tube, valve length, (D) <br /> Polls <br /> Upper <br /> (U) i- �_� 1 � _ Tube <br /> Disxan�kfrclm the 71 SO Inlet tube flange to the bottom Tod ._ . . . --is so odo go a ... . . ... . . . .. ... . . . . <br /> of jhe tank, Note ; If a tank bottom protector is present It <br /> may be necessary to add this thickness to dimension ' r �� <br /> (0 W 6111 & 61 TP models add 0411) ,n �� (4*1 (W) Valve <br /> (B) w 1 '3/x � Length, <br /> bottom of <br /> Frorrr the tank calibration chart provided by tank mann- " tag cut M <br /> fadturer find the dipstick number (Y) which corresponds rt- <br /> toithe 100% volume , (6) <br /> (Y) - 1 l s�Y ^ / 44J �• to To Tank do <br /> 1 .: To determine shut-off percentage: Tank <br /> Subtract upper tube length (D) from distance to tank (U) Valve Chart <br /> bottom (B) Length, - 1000/0 <br /> (D) - 2" = �8 3 � Z �Z 1 y 3t4 top of cut Volume <br /> Dipstick <br /> Using the tank coil lbration chart provided by the tank - <br /> anufacturer determine the tank capoicity at the cal• <br /> e ilated (X) dimenslon and the 100% volume (Y) tank <br /> C 4PACKY0 <br /> ( C) tank capacity in gallons : Lot 1 $ <br /> it <br /> ( ) tank capacity In gallons = .. <br /> $ ©% O0 capacity I (Y) capacity x100 = _.gam XNote; The overfill valve must be Installed per AH1 require* <br /> y I g ments and all applicable local, state, and national codes, If <br /> Y S 6 x <br /> to O = `Y of gd�+ Y 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 280,20 overfill <br /> valves should be sot to a maximum of gs%, <br /> 21 <br />