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r � Appendix C �., HOW TO LOCATE THE POSITION OF THE 71 SO FOR COMPLETE SHUT-OFF AT A GIVEN TANK CAPACITY Note: This Appendix only applies when AHJ require- EXAMPLE ments call for complete shut-off at a given tank capacity. 1 . For an Owens-Corning Model G-3 Fiberglass' Tank See page 4 for standard measurements. Calibration Chart: The length of the upper tube and the placement of the Tank Capacity " 10,000 gal ., nominal 9,403 gal . 71 SO valve body determine the shut-off point. The sam- NOTE : Use actual capacity only pie calculation below will provide for complete shut-off at 95 %. In all cases, the upper tube length must be a Tape measure minimum of 6- 1 /2 " plus the length of the riser pipe. All length measurements are in inches . — INSTRUCTIONS 1 . Find the tank capacity ( in gallons) from the tank cali- bration chart provided by the tank manufacturer. Riser Pipe with Face A 2 . Calculate 95% of capacity. Sea Adaptor ( ) To Tank 3 . Locate the 95 % volume number on the tank calibra - I Top (LD. ) To(Tank tion chart. e Bo om lo d10. Find the dipstick number (X) which corresponds to ! / the 95 % tank volume. And, find the dipstick number (Y) which corresponds to the 100% volume. p� 1Peqt�rl 5 . Subtract the dipstick number (X) from the tank diam - � eter (Y) to find the upper tube reference number (Z) . (Y) - (X) _ (Z) j 2. 95% of actual tank capacity = 0.95 x 9403 gal . _ 6 . Add 1 .5 " to (Z) to find the upper tube depth E. 8933 gal . (Z) + 1 .5 " = E 3 . The closest number which is less than 8933 gal . Is 7. is E less than 6- 1 /2"? > :: , 8910 gal . Choosing the closest number less than 95 % of actual capacity ensures that complete CNOJ Upper tube length is E plus the distance from the shutoff will occur when the tank is no more than top of the Face Seal Adaptor installed on the riser 95 % full : pipe to the inside, top lip of the storage tank (A) . 4. The calibration chart reading of 8910 gal. corre- Upper Tube Length = E + (A) � 4 �< 2 sponds to a dipstick measurement of 82" . f �� For testable models only, ending in "T": 5 . Dipstick number (X) = 82" Upper Tube Length = E + (A) - 1 - 1 /2" Tank diameter (Y) = 92" (Z) (92 "- 82" = 10") 10 YES Upper tube length is 6- 1 /2 " plus the riser pipe (Z) = " measurement (A) . 6. (Z) + 1 .5 " = E ( 10" + 1 .5" = 11 .5 ") j Upper Tube Length = & 1 /2" + (A) E = 1145" 7 . Is 11 . 5" less than 6-1 /2 "7 ,� NO Measure the distance from the to of the FSA-400 I EUpper table models only, ending in T : p Tube Length = 6-1 /2" + (A) — 1 -1 /2" Face Seal Adaptor installed on the riser pipe to the inside, top lip of the storage tank and obtain measurement (A) . NOTE : You must find the actual tank capacity num- Upper tube length = E + (A) ber that correlates to the 61 /2" + (A) depth for the station recor� Tirs huinbrmaylo Ciese�# or For testable models only, ending in "T": the purposes f i`b ifting an elgctrodic tam evel Upper Tube Length = E + (A) — 1 - 1 /2" system . € t 1r r"t f' i E I y 23 f� 4 , 4Ei e i 1 i I`'E