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AppendixB 2. To determine lower tube distance from tank 7150 Overfill Valve in Tank Shut off Level Worksheet bottom to bottom of cut: Important: This is meant to be supplemental worksheet and not a substitute to following the installation Subtract valve length (W) from distance to tank manual instructions. All length measurements are in inches. Please contact the Authority Having Jurisdic- bottom (B) tion (AM) and review local, state, and national codes to determine the regulatory requirements governing (V) = (B) — (W) = shut-off capacity in your region, as well as take Into account other considerations such as extreme tank tilt. Cast fug Note: Lower tube clearance must meet tank manufac- In71SO turer requirements and all AM, local, state, and national / body Take the following measurements with the valve in- E codes. Typical clearance isabout4". If lowertube clear- // Float direction stalled in the tank: ance is not met valve must be removed and adjusted to Distance from the 71 SO Inlet tube flange to the cast meet these requirements. lug in the 71 so body (see figures), upper tube length. Note: the UpperTube Length must beat least 16" to In- clude the protective bend in the tube. 3. To determine lower tube distance from tank (D1 = bottom to top of cut: Distance from the 7150 Inlet tube flange to the top and Subtract valve length (U) from distance to tank bottom of lower tube, valve length. (D) bottom (B) (W) = Upper IT) = (8) — N1 = (U) = Tube View Into drop tube from above Note: Lower tube distance from tank bottom to top of Distance from the 7150 Inlet tube flange to the bottom cut must meet all AHI, local, state, and national codes. of the tank. Note: If a tank bottom protector Is present it For reference per 40 CFR 63 subpart CCCCCC / NESHAP may be necessary to add this thickness to dimension the lower tube can be no more than 6" from the bottom (DPW 6111 & 61 TP models add 0.60) (Wl Valve of the tank IF lower tube distance Is not met valve must (B) = Length, be removed and adjusted to meet these requirements. bottom of From the tank calibration chart provided by tank manu- cut facturer find the dipstick number (Y) which corresponds 4. To determine float alignment: to the 100% volume. (B) (Y) = To Tank Looking Into upper tube (see figure) the float should be M aligned along the length of the tank If float is not 1. To determine shut-off percentage: Tank aligned properly adjustments need to be made. Subtract upper tube length (D) from distance to tank (U) Valve Chart bottom (B) Length, 10096 (X) = (8) — (D) - 2" = top of tut Volume Dipstick Using the tank calibration chart provided by the tank manufacturer determine the tank capacity at the cal- culated (X) dimension and the 100% volume (Y) tank capacity. (X) tank capacity in galla ns = (Y) tank capacity in gallons = 50% = (XI capacity / (Y) capacity x100 = Note: The overfill wive must beInstalled per AHI require- ments and all applicable local, state, and national codes. If the overfill wive is set above the allowable shut-off percent- age the overfill wive must beremoved and replaced. For reference 40 CFR part 280 Subpart 8 Section 280.20 overfill valves should be set to a maximum of 95% 21 22 Appendix C Appendix C (continued) HOW TO LOCATE THE POSITION OF THE 7150 FOR COMPLETE SHUT-OFF AT A GIV EN TANK CAPACITY 71 SO Overfill Valve in Tank Complete Shut Off Level Worksheet Note: This Appendix onlyapplieswhenAW require- EXAMPLE Important: This is meant to be supplemental worksheet and not a substitute to following the installation Netts call Appendix only applies at given requl acl manual instructions. All length measurements are in inches. Please contact the Authority Having Jurisdic- P 9 capacity, 1 . For an Owens-Corning Model G-3 Fiberglass* Tank tion (AHJ) and review local, state, and national codes to determine the regulatory requirements governing Seepage 4 forstandard measurements. Calibration Chart: shut-off capacity in your region, as well as take into account other considerations such as extreme tank tilt. The length of the upper tube and the placement of the Tank Capacity - 10,000 gal. nominal 9,403 gat. 71SO valve body determine the shutoff point. The samr NOTE: Use actual capacity only Take the following measurements with the valve in- pie calculation below will provide for complete shut-off stalled in the tank at 95%. In all cases, the upper tube length must be a T°P° "'e'a'rs Distance from the 7150 inlet tube flange to the cast minimum of 6-1/2• plus the length of the riser pipe. All Iug in the 71 SO body (see figures), upper tube length. length measurements are in Inches. Note: the Upper Tube Length must be at least 16" to In- INSTRUCTIONS clude the protective bend in the tube. t. Find the tank opacity (in gallons) from the tank cal 1- (D) bration chart provided by the tank manufacturer. Rixr ape Distance from the 71 SO inlet tube flange to the top and wm Face (A) bottom oflower tube, valve length. 2. Calculate 95% of capacity. SeatAdagor TOTank W _ 3. Locate the 95% volume number on the tank calibra- Top O.pJ T @ (U))= Upper tion chart. W "" Tube 4. Find the dipstick number (X) which corresponds to Distance from the 71 SO inlet tube flange to the bottom the 95% tank volume. And, find the dipstick number of the tank. Note: If a tank bottom protector is present It (Y) which corresponds to the 100% volume. may be necessary to add this thickness to dimension 5. Subtract the dipstick number (X) from the tank dlam- (DPW 6111 & 61TP models add 0.6") (WValve eter (Yl to find the upper tube reference number (2)• (8) = Length, (Y) - M = W 2. 95% of actual tank capacity = 0.95 x 9403 gal. = bottom 8933 gal. From the tank calibration chart provided by tank manu- of cut 6. Add 1 .50 to (Z) to find the upper tube depth E. (Z) + 15" = E 3. The closest number which is less than 8933 gat, is to the 100 d volume.dipstick (Y) whkh corresponds 8910 gal. Choosing the closest number less than to the 10096 volume. Ta 7. Is E less than 6-12'7 (Y1 = TOTank 95% of actual capacity ensures that complete NO Upper tube length is E plus the distance from the shutoff will occur when the tank Is no more than 1. To determine complete shut-off percentage: 01 top of the Face Seal Adaptor Installed on the riser 95% full. Subtract upper tube length (D) from distance to tank (U) Valve Tank pipe to the inside, top lip of the storage tank (A). Chan Upper Tube Length = E + (A) 4. The calibration chart reading of 8910 gal corre- bottom (8) Length, 100% sponds to a dipstick measurement ofeT. (X) = (B) - (D) + 1 .5" = top of Volume For testable models only, andi ng in "T": 5. Dipstick number Oq = 82' Dipstick Upper Tube Length = E + (AI - 1 -1 /2" Tank diameter (Y) = 92" Using the tank determine tanktion chart capacity by the tank (Y) (X) - (Z) (92 " 82" - 10") manufacturerdetermine the tank capacity atthecal- (Z) - 10" culated (X) dimension and the 100% volume (Y) tank YES Upper tube length is 6.1/2" plus the riser pipe capacity. measurement (A). 6. (Z) + 15" = E (10" + 15" = 11.5") Upper Tube Length = 6-1/2" + (A) E = 11.5' (Xl tank opacity in gallons = 7. Is 11.5" less than 6-1/227 NO Measure the distance from the to of the FSA-400 (Y) tank capadtyin gallons = For testable models only, ending In T: P Upper Tube Length = 6-12" + (A) - 1-1/2 Face Seal Adaptor installed on the riser pipe to Complete SO% = (X) capacity / (Y) capacity x100 = the inside, top lip of the storage tank and obtain Note: The overfill valve must be Installed per AM re- the (A), qufrements and all applicable local, state, and national NOTE: You must find the actual tank capacity num- Upper tube length = E + (A) codes. if the overfill valve is set above the allowable ber that correlates to the 6-1/2" + (A) depth for the shut-off percentage the overfill valve must be removed station records. This number may also be used or For testable models only, ending In "T": and replaced. the purposes of calibrating an electronic tank level Upper Tube modelLengtsE + (A) - 1g In system. Note: This Appendix only applies to valves installed per Appendix C. See Appendix B for the standard valve installation tank shut off level worksheet. 23 24