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CIO I <br /> HOW TO LOCATE THE POSITION OF THE <br /> 71 SO AT 95%TANK CAPACITY Measuring Stick <br /> The length of the upper tube and the placement of t <br /> the 71 SO valve body determine the shut-off point. <br /> Following the standard instructions for the OPW <br /> 71 SO will provide for initial shutoff at 95%. In all <br /> cases,the upper tube length must be a minimum of i <br /> 6-112"plus the length of the riser pipe. All length i <br /> measurements are in inches. Riser Pipewith \ <br /> INSTRUCTIONS Sea Face \ {A) <br /> Seal Adaptor ��aa To Tank <br /> Top(I.D.) {$) <br /> 1.) Find tank capacity(in gallons)from tank To Tank <br /> calibration chart provided by tank manufacturer. Bottom <br /> 2.)Calculate 95%of capacity. 6q <br /> �,SSD. <br /> 3.)Locate the 95%volume number on the tank <br /> calibration chart. /0L1_ S,� it�U Figure'1 <br /> 4.) Find the dipstick number(X)which corresponds <br /> to the 95%tank volume. And, find the dipstick <br /> number(Y)which corresponds to the tr EXAMPLE <br /> 100%volume. 117-Y/4— to� � 1.)For an Owens-Coming Model G-3 Fiberglass© <br /> /� Tank Calibration Chart: <br /> 5.)Subtract the dipstick number(X)from the tank Tank Capacity-10,000 gal., nominal 9,403 gal. <br /> diameter(Y)to find the upper lube reference NOTE: Use actual capacity only <br /> number(Z). tr <br /> (Y-I;-(X)=(Z)., 1 3 B 2.)95%of actual tank capacity=0.95 x <br /> 9403 gal.=8933 gal. <br /> 6.)Subtract 2"Gum (L) to find the upper tube depth <br /> (C) (Z)-2"-C 11 r, 3.)The closest number which is less than 8933 gal. <br /> Is 8910 gal.Choosing the closest number less <br /> than 95%of actual capacity ensures that the <br /> 7.)Is C less than 6-112"? initial shutoff will occur when the tank is no more <br /> NO Upper tube length is C plus(he distance than 95%full. <br /> from the top of the Face Seal Adaptor 4.)The calibration chart reading of 8910 gal. <br /> installed on the riser pipe to the inside, top corresponds to a dipstick measurement of 82". <br /> lip of the storage (A). <br /> Upper Tube Length-C+ (A) 5•) Dipstick number(X)=82" <br /> Tank diameter(Y)=92" <br /> YES Upper tube length is 6-112"plus the riser (Z)-(X)_(Z) (92"-82"=10") <br /> (z)= 10" <br /> pipe measurement(A). <br /> 7.) (Z)-2"=C (10"-2"=8") <br /> Upper Tube Length=6-112"+(A) C=8" <br /> NOTE: You must find the actual tank capacity 7,) Is 8"less than 6-1/2"? <br /> number that correlates to the 6-112"+(A)depth <br /> for the station records. This number may also NO Measure the distance from the top of the <br /> be used for the purposes of calibrating an FSA-400 Face Seal Adaptor installed on the <br /> electronic tank level system. riser pipe to the inside,top lip of the storage <br /> tank and obtain measurement(A). <br /> E Registered T.M.-Owens Corning Fiberglass Corperatlon Upper tube length=C+ (A) <br /> 64 <br />