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2-0 ��- 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 - 1. the 71SO valve body determine the shut-off point. Following the standard instructions for the OPW 71 SO will provide for initial shutoff at 95%. In all - cases, the upper tube length must be a minimum of 6-1/2" plus the length of the riser pipe. All length i measurements are in inches. Riser Pipe INSTRUCTIONS with Face Seal Adaptor daplo To Tank Top(I.D.} (B) 1.) Find tank capacity(in gallons)from tank To Tank calibration chart provided by tank manufacturer. Bottom 2.)Calculate 95%of capacity. g 915.3. 5 - 6-1/2" 3.)Locate the 95% volume number on the tank calibration chart. 4.) Find the dipstick number(X)which corresponds Figure 1 to the 95% tank volume. And, find the dipstick number(Y)which corresponds to the 4 EXAMPLE 100%volume. �07_� ��Y1 1.) For an Owens-Corning Model G-3 Fiberglass® J Tank Calibration Chart: 5.) Subtract the dipstick number(X)from the tank Tank Capacity- 10,000 gal., nominal 9,403 gal. diameter(Y)to find the upper tube reference NOTE: Use actual capacity only number(Z). tYl- (X) = (Z)7 �i� �� v 2.) 95% of actual tank capacity= 0.95 x �g-�d7 Y /Z 9403 gal. =8933 gal. 6.)Subtract 2"f,um ( )to find the upper tube depth (C)• 3.)The closest number which is less than 8933 gal. (Z) -2"= C /O - Is 8910 gal. Choosing the closest number less than 95% of actual capacity ensures that the 7.) Is C less than 6-1/2"? -1 p initial shutoff will occur when the tank is no more than 95% full. NO Upper tube length is C plus the distance from the top of the Face Seal Adaptor 4.)The calibration chart reading of 8910 gal. installed on the riser pipe to the inside, top corresponds to a dipstick measurement of 82". lip of the storage (A). Upper Tube Length -C+ A 5.) Dipstick number(X)= 82" U PP 9 - ( ) Tank diameter(Y) = 92" (Y)-(X) =(Z) (92"-82" = 10") YES Upper tube length is 6-1/2" plus the riser (Z)= 10" pipe measurement (A). 7.) (Z)-2"=C (10"-2"=8") Upper Tube Length=6-112"+ (A) C =8" NOTE: You must find the actual tank capacity 7.) Is 8" less than 6-1/2"? 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