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I / <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 rneasurernents are in inches, Please contact the Authority Having Jurisdic- <br /> tian(AHJ)and review I0ca1,state,and national codes to determine the regulatory requirements governing <br /> shut-off capacity in your region,as well as taste into account other considerations such as extreme tank tilt. <br /> Take the following measurements with the valve in- <br /> stalled in the tank: r <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 /> dude the protective bend in the tube. <br /> (D)- • <br /> DManre from the 7150 inlet tube flange to the top and <br /> bottom.of Iov,+ar tube,valve 1r,lg1,1, } <br /> (W)= I So-37-5 {Di <br /> (U) Upper <br /> Tu be <br /> Distance from the 715O inlet tube flange to the bottom --j <br /> of the tank. Note:If a tank bottom protector is present it <br /> may be necessary to add this thickness to dimension <br /> (OPW 6111 &617P models add 0.6") W <br /> { )_ � i ]Valve <br /> $ S` <br /> � Length, <br /> bottom of 1 <br /> From the tank calibration chart provided by tank mane- I cut ffi <br /> facturer find the dipstick number M which corresponds ? <br /> to Thq 100%volume. <br /> (Y)= 19 To Tank !i <br /> 1. To determine shut-off percentage; Tank <br /> Subtract upper tube length(D)from distance to tank (u)Valve _ Chart <br /> bottom (B) Length, 100% <br /> (X)=(8)--(D) -2"= ��6�5 top of cut Volume �I <br /> Dipstick h <br /> Using the tank calibration chart provided by the tank <br /> mail Ufa cturer determine the Yank rapacity at the cal- <br /> culated W dimension and the 100%volume(Y)tank r <br /> capacity. <br /> I ti <br /> (X)tank capacity in gallons= <br /> (Y)tank capacity in gallons= 3 <br /> r <br /> d <br /> 50%=(X)capacity 1(Y)capacity x100 <br /> (Vote-, The overfill valve must be instaIled perAHJ require- <br /> ments and all applicable local,state,and national codes, if <br /> the overfill valve is set above the aIlowahle shut-off percent- <br /> age the overfill valve must be removed and replaced. For <br /> reference 40 CFR part 280 Subpart i3 Section 280.20 overf5kl <br /> valves should be set to a maximum of 95W <br /> 21 <br />