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= v k Appendix..0 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 ple 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. /� �z/ 00 Seal Adaptor To Tank (B ) 3 . Locate the 95% volume number on the tank calibra- Top (l • o, ) To Tank Bo om tion chart , , V 7 f'`f 4. Find the dipstick number (X) which corresponds to the 95 % tank volume. And, find the dipstick number (Y) which corresponds to the 100% volume. Y r a((, e= a 5 . Subtract the dipstick number (X) from the tank diam- eter (Y) to find the upper tube reference number (Z) . (Y) - (X) _ (Z) - ' 7 2 • 95% of actual tank capacity = 0.95 x 9403 gal . _ 6 . Add 1 . 5 " to (Z) to find the uppertube depth E. 8933 gal. (Z) + 1 .5 — E - i 3 . The closest number which is less than 8933 gal. Is 7. Is E less than 6- 1 /2"? � 1 8910 gal . Choosing the closest number less than -� 95% of actual capacity ensures that complete h 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) . Upper Tube Length = E + (A) } Ja _ 4. The calibration chart reading of 8910 gal . corre- a; �� y sponds to a dipstick measurement of 82". For testable models only, ending in "T": 5 . Dipstick number (X) = 82" Upper Tube Length = E + (A) — 1 - 1 /2" Tank diameter (Y) = 92" (Y) - (X) _ (Z) (92 "- 82" = 1011) (Z) = 10" YES Upper tube length is 6- 1 /2 plus the riser pipe measurement (A) . 6. (Z) + 1 . 5 " = E ( 10" + 1 .5 = 11 .5 ") E = 11 .5" Upper Tube Length = 6- 1 /2" + (A) 7 . Is 11 .5 " less than 6-1 /2" ? Eup, testable models only, ending in "T": NO Measure the distance from the top of the FSA-400 per 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 records. This number may also be used or For testable models only, ending in "T": the purposes of calibrating an electronic tank level Upper Tube Length = E + (A) 11 /2" system . 23