Laserfiche WebLink
/0z 4 <br /> Appendix B <br /> 7150 Overfill Valve in Tank Shut off Level Worksheet <br /> Important: This is meant to be supplemental worksheet and not a substitute to following the installation <br /> manual instructions. All length measurements are in inches. Please contact the Authority Having Jurisdic- <br /> tion(AHJ)and review local,state,and national codes to determine the regulatory requirements governing <br /> shut-off capacity in your region,as well as take into account other considerations such as extreme tank tilt, <br /> Take the following measurements with the valve in- <br /> stalled in the tank: <br /> Distance from the 7150 inlet tube flange to the cast <br /> lug in the 7150 body(see figures),upper tube length. <br /> Note: the Upper Tube Length must be at least 16"to in- <br /> clude the protective bend in the tube. <br /> i - <br /> (D)= <br /> s Distance from the 7150 inlet tube flange to the top and <br /> C i <br /> IJ L%tLJi'1 lil 'JVJCF �i.ILC, ti�:ri� IC 114 i1 r, I i lDl 1 I <br /> (W)_ L (L� <br /> � l <br /> M I / Upper <br /> Tube <br /> Distance from the 71 SO inlet tube flange to the bottom <br /> of the tank. Note:if a tank bottom protector is present it <br /> may be necessary to add this thickness to dimension I i <br /> (OPW 6111 &51 TP models add 0.6") Iv;Vali e <br /> (B)= 1�7Vi 31� !f i Langth, <br /> + bottom of r. <br /> From the tank calibration chart provided by tank manu- cut , <br /> facturer find the dipstick number(Y)which corresponds <br /> to the 1001/o volu etl (g) f 'a <br /> (Y}_ To Tank I <br /> ii <br /> �i (Y) I <br /> 1. To determine shut-off percentage: Tank jl <br /> Subtract upper tube length (D)from distance to tank M Valve _ , Chart <br /> bottom (B) 3 ( Length, tp0% i <br /> (X)_(g)—(D)-2"_ (�C) top of cut Volume IE <br /> Dipstick <br /> Using the tank calibration chart provided by the tank <br /> manufacturer determine the tank capacity at the cal- <br /> culated(X)dimension and the 100%volume (Y)tank I :f <br /> capacity. <br /> i <br /> I <br /> (X)tank capacity in gallons= Ota b <br /> !r <br /> (Y)tank capacity in gallons ,s <br /> a� <br /> 50%_(X)capacity!(Y)capacity x100 <br /> Dote: The overfill valve must be Installed per AHJ require- <br /> ments and all applicable local,state and national codes. if <br /> the overfill valve is set above the allowable shut-off percent- <br /> age the overfill valve must be removed and replaced. For <br /> reference 40 CFR part 280 Suopart B Section 280.20 overfill <br /> valves should be set to a maximum of 95/0 <br /> 21 <br />