Laserfiche WebLink
q8 <br /> Appendix C (continued) <br /> 71 SO Overfill Valve in Tank Complete 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 71SO inlet tube flange to the cast 'y •- <br /> lug in the 71 SO body(see figures), upper tube length. <br /> Note: the Upper Tube Length must be at least In tc in <br /> lude the protective bend in the tube. <br /> (D) <br /> Distance from the 71 SO inlet tube flange to the top and <br /> bottom of lower tube,valve length. �— <br /> (W)_ Dl <br /> (U) Upper <br /> Tub, <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 z <br /> may be necessary to add this thickness to dimension <br /> (OPW ` models add 0.6") (W)Valve <br /> (B)= <br /> Length, <br /> From the tank calibration chart provided by tank manu- ! bottom <br /> cut <br /> facturer find the dipstick number M which corresponds <br /> to the 100°n yNume. Igi <br /> (Y)_ y To Tank <br /> a <br /> 1. To determine complete shut-off percentage: an �( <br /> Subtract upper tube length(D)from distance to tank Tank <br /> PP 9 iU)Valve Chart I <br /> bottom(B) <br /> 9� Length, 1001Z <br /> (X)_(B)-(D)+ 1.5" top of Volume <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 <br /> capacity. 1 <br /> (X)tank capacity in gallons <br /> (Y)tank capacity in gallons <br /> Co p ete SO%_(X)capacity/(Y)capacity x100 <br /> 'L Note: The overfill valve must be installed per AHJ re- <br /> quirements and all applicable local,state,and national <br /> codes. if the overfill valve is set above the allowable <br /> shut-off percentage the overfill valve must be removed <br /> and replaced. <br /> Note: This Appendix only applies to valves installed per Appendix C. See Appendix B for the standard valve <br /> installation tank shut off level worksheet. <br /> 24 <br />