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!2.(C- HOW TO LOCATE THE POSITION OF THE 71 SO AT 95%TANK CAPACITY Measuring Stick The length of the upper tube and the placement of /Pipe i the 71 SO valve body determine the shut-off point. I Following the standard instructions for the OPW s 71 SO will provide for initial shutoff at 95%. In all c cases, the upper tube length must be a minimum of ' 6-1/2"plus the length of the riser pipe. All lengthI I measurements are in inches.INSTRUCTIONS (A) Seal Adaptor To Tank Top (ID.) (B) . 1.)Find tank capacity(in gallons)from tank To Tank calibration chart provided by tank manufacturer. Bottom 11, X73 2.)Calculate 95% of capacity. 6-1/2" 3.)Locate the 95%volume number on the tank calibration chart. /q��5,� It t Figure 1 4.) Find the dipstick number(X)which cones onds to the 95% tank volume. And, find the di stick number(Y)which correspo �� to the �� EXAMPLE 100%volume. 1/!? _ 106 s8 = 1.)For an Owens-Corning Model G-3 Fiberglass® Tank Calibration Chart: 5.) Subtract the dipstick number(X)fro the tank Tank Capacity- 10,000 gal., nominal 9,403 gal. diameter(Y)to find the upper tub reference NOTE: Use actual capacity only number(Z). d (Y)- (X) _ (Z) 3 2.)95% of actual tank capacity = 0.95 x 9403 gal. =8933 gal. 6.)Subtract 2"from (Z)to find th upper tube depth (C) Z " C 11 r 3.)The closest number which is less than 8933 gal. /3 ( )-2 = Is 8910 gal. Choosing the closest number less v than 95% of actual capacity ensures that the 7.) Is C less than 6-1/2"? initial shutoff will occur when the tank is no more than 95% full. NO Upper tube length s C plus the distance from the top of th Face Seal Adaptor 4.)The calibration chart reading of 8910 gal. installed on the r ser pipe to the inside, top corresponds to a dipstick measurement of 82". lip of the stora (A). 5.) Dipstick number(X) =82" Upper Tube ngth =C +(A) Tank diameter(Y)= 92" YES Upper tube ength is 6-1/2" plus the riser (Y)-(X)= (Z) (92 "-82" = 10") pipe meas rement (A). (Z) = 10" 7.) (Z) -2" = C (10"-2"= 8") Upper T e Length =6-1/2" + (A) C = 8" NOTE: You ust find the actual tank capacity 7.) Is 8" less than 6-112"? number that correlates to the 6-1/2" + (A) depth for the station records. This number may also NO Measure the distance from the top of the be used for the purposes of calibrating an FSA-400 Face Seal Adaptor installed on the electronic tank level system. riser pipe to the inside, top lip of the storage tank and obtain measurement(A). ©Registered T.M.-Owens Coming Fiberglass Corporation Upper tube length= C+ (A) 64