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�z = g ► HOW TO LOCATE THE POSITION OF THE 61SO ®Registered T.M. - Owens Corning Fiberglass AT 95%TANK CAPACITY Corporation The length of the upper tube and the placement of Measuring Stick the 61 SO valve body determine the shut-off point. Following the standard instructions for the OPW 61 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 7length of the,riser pipe. All length measurements are in inches. INSTRUCTIONS Riser Pipe 1. Find tank capacity in gallons)from tank with Face (T (g) p tY ( g ) Seal Adaptor To Tank To Tank calibration chart provided by tank manufacturer. Top (I.D.) Bottom 12,28 4 2.) Calculate 95% of capacity. I>> (O—+3 6-1/2" 3.) Locate the 95% volume number on the tank calibration chart. 4.) Find the dipstick number(X)which corresponds to the 95%lank volume. And, find the dipstick number(Y)which corresponds to the EXAMPLE 100%volume. k = 85 : ► 1.) For an Owens-Corning Model G-3 Fiberglass® 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). Z 2. 95% of actual tank capacity 0.95 x (Y)-(X)_ (Z) C55/�'-CBS) �1 O ) p Y= 9403 gal. = 8933 gal. 6.) Subtract 2"from (Z)to find the upper tube depth 3.)The closest number which is less than 8933 gal. (C). (Z)-2" = C C�O'�Z)- Z = $ ►z+ Is 8910 gal. Choosing the closest number less 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. Upper tube length is C plus the distance from the top of the FSA-400 Face Seal 4.)The calibration chart reading of 8910 gal. Adaptor installed on the riser pipe to the corresponds to a dipstick measurement of 82". inside, top lip of the storage (A). 5.) Dipstick number(X)= 82" Upper Tube Length = C + (A) F VZ + LZ =30Tank 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). 6.) (Z) -2" = C (10"-2" =8") Upper Tube Length = 6-1/2" + (A) C = 8" NOTE: You must find the actual tank capacity 7.) Is 8" less than 6-1/2"? number that correlates to the 6-112" + (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 Face Seal Adaptor installed on the riser pipe electronic tank level system. to the inside,top lip of the storage tank and obtain measurement(A). Upper tube length =C + (A) 54