Laserfiche WebLink
�=jaf��pr 10 z 31� <br /> Appendix B <br /> 7150 Overfill Valve in rank Shut off Level Worksheet <br /> fmportant: 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 Lipper Tube Length must be at least 16"to in- <br /> clude the protective bend in the tube. <br /> Distance from the 71 SO inlet tube flange to the top and , <br /> (W)= Ib5 'Iz 1� <br /> (D} ' <br /> (1J)_ !' to # 7��r 1 ! Upper <br /> Tube <br /> D'stance from the 71 SO inlet tube flange to the bottom I __j <br /> of the tank. Note:If a tank bottom protector is present it I <br /> may be necessary to add this thickness to dimension <br /> (OPW 6111 &61,IP,models add 0.6") (W;Valve <br /> (B)_ �(r �y +r Length. <br /> bottom of <br /> From the tank calibration chart provided by tank manu- cut , <br /> facturer find the dipstick number(Y)which corresponds <br /> to the 1005/o volurn (B) �{I <br /> To Tank <br /> { \; l <br /> 1. To determine shut-off percentage: i (Y,Tank <br /> Subtract upper tube length (D) from distance to tank (U)Valve Chart <br /> bottom (B) <br /> � ! Length, 100% <br /> (X)_(B)—(D) -Z" D D 3/ top of cut I Volume II <br /> D pstick <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 ! <br /> capacity. j I li <br /> • I <br /> (X)tank capacity in gallons= d 1 3 ! 4 <br /> F ;f <br /> (Y)tank capacity in gallons= <br /> SO%=(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 Subpart B Section 280.20 overf 11 <br /> valves should be set to a maximum of 95%. <br /> 21 <br />