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Ap�lgndix 6 <br /> 71 SO Overfill Valve in Tank Shut off Levet Worksheet <br /> 61 s0 Overfill valve In Tank Shut off Level Worksheet <br /> imiagrtont; This is meant to be supplemental worksheet and not a substitute to following the installation <br /> P: instructions . All length measurements are in inches. Please contact the Authority Having Jurisdic- <br /> tion (AM ) 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 /> ftalted 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 beat least t 6" to in - <br /> Iude the nrnrartr. ,� ar%mj in the tube. <br /> Distance from the 71 SO Inlet tube flange to the top and I <br /> bottorn of lower tube, valve length. i0! <br /> (W) = 1 h� • 5 — upper <br /> Tube <br /> Distance from the 7150 inlet tube flange to the bottom - -- --- � <br /> of the tank, Note: If tank bottom protector is present it <br /> may be necessary to add tWs thickness to dimension <br /> tQPVJ 6111 & 61 TP models add 0.6") (W) Valve(61 h,= � Length, ! <br /> — L ` - button) of 't <br /> cut <br /> From the tank calibration chart provided by tank manu - <br /> facturer find the dipstick number (Y) which corresponds <br /> to the I00%, olunte. (Q` i <br /> TO Tank <br /> to <br /> 1 . To determine shut-off percentage: Tank <br /> subtract upper tube length (D) from distance to tank tu! Valve — Chart <br /> _. bottom ( (i) Length, 10096 <br /> top of cut Volume <br /> - <br /> (X ) = (s) (D ) - 7 =. _ <br /> _ . { Dlpst,ck f <br /> Using the tank calibration chart provided by the tank i t <br /> manufacturer determine the tank capacity at the cal t <br /> culated ( X ) dimension and the 1l)o°ro volume ( Y ) tank <br /> capacity. . , 1 <br /> ( X) tank capacity In gallons = <br /> N , 1 - <br /> ( Y ) tank capacity In gallons = _ <br /> SO% = ( X ) capacity / (Y ) capacity x100 r <br /> _ Note: The overfill valve must be Installed per At+ J require- <br /> ' nrcnts and all applicable local, state , and rvitional codes. If <br /> e ` the overfill valve is set above the allowable shutoff percent <br /> 2 age the overfill valve must be removed and replaced . For <br /> reference 40 CFR part 280 Subpart 8 5ettion 280 20 overhil <br /> valves should be set to a maximum of 95<6 <br /> 21 <br />