COMPLIANCE INFO_2025 - Laserfiche WebLink

Home Browse Search

i Appendix A 71 SO Overfill Valve Upper Tube Calculation Worksheet ---_ -------- _ ------ ---------------________- -------- ----------------- ------- -- ---.__._..---------- Important: This is meant to be supplemental worksheet and not a substitute to following the installation manual instructions. All length measurements are in inches. Please contact the Authority Having Jurisdic- tion(AHJ)and review local,state,and national codes to determine the regulatory requirements governing shut-off capacity in your region,as well as take into account other considerations such as extreme tank tilt. I f /Desired tank capacity for shut-off: SO%=�q�y jDipstick Number(Y) on Tank Chart that corresponds to 100%volume= E�= ) Dipstick Number on Tank Chart that corresponds to SO%(X)_ N Upper Tube Reference Number Z=Y-X (Z) ` Upper Tube Depth Inside Tank C=Z-2" 2 Distance from top sealing surface for 7150 Lipp to inside the _ ��.).3 (C) top of Storage Tank2 A_ a5 For Non-Testable 71SO models only In all cases for non-testable 71 SO models,the top of the valve body must protrude at least 61/2"into the tank to provide a minimal clearance for proper operation 3 Additionally the total Upper Tube Length must be at least 16" of length to include the protective bend in the tube. Is C less than 6'/2" Yes / If NO,Upper Tube Length(D)=C+A If YES,Upper Tube Length (D)=6'/2"+A Upper Tube Length= ' For Testable 71 SO models only In all cases for Testable 71 SO models,the top of the valve body must protrude at least 6�'/2"into the tank to provide a minimal clearance for proper operation.' Additionally the total Upper Tube Length must beat least 141/2"of length to include the protective bend in the tube. Is C less than 6 1/2" Yes / No If NO,Upper Tube Length(D)=C+A— 1 '/2" If YES,Upper Tube Length (D)=6'/2"+A— 1 1/2" Upper Tube Length= ' Sealing surface may be the top of the Face Seal Adaptor,the built in sealing ledge inside some spill containers,or on non-vapor tight applications the top of the pipe nipple 2 Some Underground Storage tanks utilize a manway system at the top. Make sure to use the top of the storage tank for measure- mentandnottotopofthemanway. Consultyour underground tank manufacturer for height of the man way 3 This measurement is taken from the seam where the upper tube is attached to the valve body to the inside of the tank top. 20