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Appendix 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(8) tion(AHJ)and review local,state,and national codes to determine the regulatory requirements goveming (V)=(B)-(W)= shut-off capacity in your region,as well as to ke Into account other considerations such as extreme tank tilt Cast lug Note:Lower tube clearance must meet tank manufac- in 7150 Take the following measurements with the valve in- - - turer requirements and all AHJ,local,state,and national body stalled In the tank codes.Typical clearance Is about 4'.If lower tube clear- Float direction ance is not met valve must be removed and adjusted to Distance from the 7150 Inlet tube flange to the cost meet these requirements. lug In the 7150 body(see figures),upper tube length. Note:the UpperTube Length must be at least 16-to In- clude the protective bend in the tube. 3. To determine lower tube distance from tank (D)= bottom to top of cut: Distance from the 71 SO inlet tube flange to the top and Subtract valve length(U)from distance to tank bottom of lower tube,valve length. (D) bottom(B) IWI= Lipper RI-(e)-(UI= (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 curt must meet all AHJ,local,state,and national codes. of the tank.Note:K 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 (OPW 6111&61 TP models add 0.6) (W)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 fac[urer find the dipstick number M which corresponds 4. To determine float alignment: to the 100%volume. (B) (n= ToInk Looking Into upper tube(see figure)the float should be 1. To determine shut-off percentage: M aligned along the length of the tank Iffloa[isnot Pe 9e Tank aligned property adjustments need to be made. Subtract upper tube length(D)from distance to tank (U)Valve Chart bottom(B) Length, 100% (X)=M-I.)-2"= tap of cut Volume "i"ck Using the tank calibration chart provided by the tank cunufacturer determine the tank capacity at the cal- lated(X)dimension and the 100%volume(Y)tank capacity. IXI tank capacity in gallons= (Y)tank capacity in gallons= 50%=(X)capacity/(Y)capacity x100= Now:The overfill valve must be installed per AW require- ments and all applicable local,sate,and national codes.If the overfill valve Is set above the allowable shutoff percent- age the overfill wive must be removed and replaced.For reference 40 CFR part 280 Subpart B 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 GIVEN TANK CAPACITY 7150 Overfill Valve in Tank Comolete Shut Off Level Worksheet Note:This Appendix only applies when AHJ require- EXAMPLE Important This is meant to be supplemental worksheet and nota substitute to following the installation mentz<all for complete shutoff ata given tank capacity. manual instructions.All length measurements are In inches.Please contact the Authority Having Jurisdic- 1. For Owens-Corning Model G-3 Fiberglass-Tank tion(AHJ)and review local,state,and national codes to determine the regulatory requirements governingSee page 4 for standard 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 gal. 71SO valve body determine the shutoff point The sato NOTE:Use actualcapacity only Take the followingmea surementswith the valve in- ple calculation below will provide for complete shut-off stalled in the tank at 95%.In all cases,the upper tube length must be a Tape"rap Distance from the 71 SO Inlet tube flange to the cast ------ minimum of 6-1/2"plus the length of the riser pipe.All lug In the 7150 body(sa figures),upper tube length. length measurements are in inches. Note:the Upper Tube Length must beat least 16'to in- INSTRUCTIONS clude the protective bend In the tube. 1. Find the tank opacity(in gallons)from the tank call- (D)= bretion chart provided by the tank manufacturer. Roar npa Distancefrom the 7150 lnlettube flange to the topand 2. Calculate 95%of capacity. y,eiAygar (A) bottom of lower tube,valve length. To T.M lel (W)= (D) 3. Locate the 95%volume number on the tank calibra- Top 0.0.)To rare (U)= U tion chart. 'per Tube 4. Flndthedipstick number(X)which corresponds to Distance from the 71 SO inlet tube flange to the bottom the95%tankvolume.And,find the dipstick number ofthetank.Note.Ifa 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 clam- (OPW 6111&61TP models add 0.6') (MValve •ter(Y)to find the upper tube reference number(Z). (B)= Length, (y)-(X)_(Z) 2. 95%of actual tank capacity=0.95 x 9403 gal.= bottom 6. Add 1.5"to(Z)to find the upper tube depth E. 8933 gal. From the tank calibration chart provided by tank manu- ofcut (Z)+15'=E 3. The closest number which is less than 8933 gal.Is facturer find the dipstick number M which corresponds 7. Is E less than 6.1/2"7 8910 gal.Choosing the closest number less than to the 100%volume. (8) 9'%'factual capacity ensures that complete n)= To Tank NO Upper tube length is E plus the distance from the shutoff will occur when the tank is no more (Y) top of the Face Seal Adaptor Installed on the riser 95%full. 1. To determine complete shut-off percentage: Tank pipe to the inside,toplipofthe storage tank(A). Subtract length(D)from distance to tank (U)Valve Chart Upper Tube Length=E+(A) 4. The calibration chart reading of 8910 gal.corre- bottom(B) Length, 100% sponds to a dipstick measurement of 82*. (X)=(B)-(D)+1.5"= top or Volume For testable models only,ending in"T": 5. Dipstick number(X)=82" Dipstick Upper Tuba Length=E+(A)-1-1/2" Tank diameter(Y)=92" toeing the tank calibration chart provided by the tank M-(X)=(2) (92"-82"=10") nufacturer determinethe tank capacity atthe cal- (Z)=10" culated(X)dimension and the 100%volume(Y)tank YES Upper tube length ls&1/2"plus the riser pipe capacity. measurement(A). 6• (2)+15"=E (10"+15'=11.5') Upper Tube Length=6.1/2"+(A) E=11.5" (X)tank capacity in gallons=_ 7. Is 11.5"less than 6.1/2'7 (Y)tank capacity in gallons= For testable moon dels ly,ending in"T": NO Measure the distance from the top of the FSA-400 Upper Tu be Length=6-1f2"+(A)-1-1/2 Face Seal Adaptor Installed on the riser pipe to Complete 50%=(X)capacity/(Y)capacity x100= the Inside,top lip of the storage tank and obtain Note:The overfill valve must be installed per AHJ re- measurement(A). qulrements and all applicable local,state,and national NOTE:You must find the actual tank capacity num codes.If the overfill wive Is set above the allowable berthat correlates to the 6-t/2"+(A)de depth the Upper tube length=E+(A) Pt shut-off percentage the overfill valve mus[be removed station records.This number may also be used or For tastable modals only,ending In"T": and replaced. the purposes of calibrating an electronic tank level Upper Tube Length=E+(A)-1-1/2" system. Notr.This Appendix only applies to valvas Installed per Appendix C.See Appendix for the standard valve Installation tank shut off level worksheet. 23 24