Laserfiche WebLink
Appendix A <br /> 71 SO Overbill Valve Lipper Tube Calculation Worksheet <br /> lm ortant: 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)ari,tl;r0Yiew local,state,and national codes to determine the regulatory requirements governing <br /> shut-ofa pacify in your region,as well as take into account other considerations such as extreme tank tilt. <br /> Desired tank capacity for shut-off: SORE= 0 AA <br /> p Y (Y) <br /> Dipstick Number(Y) on Tank Chart that corresponds to 100%volume= <br /> Dipstick Number on Tank Chart that corresponds to SO%(X)= W <br /> Upper Tube Reference Number Z=Y-X 2 2 (Z) <br /> — <br /> Upper Tube Depth Inside Tank C=Z-2" <br /> (C) <br /> Distance from top sealing surface for 7150 Lip'to inside the <br /> top of Storage Tankz A= M4-75 <br /> For Non-Testable 71 SO models only <br /> In all cases for non-testable 7150 models,the top of the valve body must protrude at least 61/2"into the tank to <br /> provide a minimal clearance for proper operation 3 Additionally the total Lipper Tube Length must be at least 16" <br /> of length to include the protective bend in the tube. <br /> Is C less than 6 1/2" Yes 1 <br /> If NO,Lipper Tube Length(D)=C+A <br /> If YES,Upper Tube Length(D)-6'/z'+A fir+ f QC uD�� <br /> Upper Tube Length= '�5 -I • � <br /> For Testable 71 SO models and <br /> In all cases for Testable 71 SO models,the top of the valve body must protrude at least 6'I:"into the tank to provide <br /> a minimal clearance for proper operation.' Additionally the total Upper Tube Length must be at least 14'I2"of <br /> length to include the protective bend in the tube. <br /> Is C less than 6112" Yes / No <br /> If NO,Upper Tube Length(D)=C+A- 1 '/a" <br /> If YES,Upper Tube Length(D)=61/z"+A-- 1 1/z" <br /> Upper Tube Length= <br /> ' Sealing surface may be the top of the Face Seal Adaptor,the built in sealing ledge inside some spill containers,or on non-vapor <br /> tight applications the top of the pipe nipple <br /> Z Some Underground Storage tanks Utilize a manway system at the top. Make sure to use the top of the storage tank for measure- <br /> ment and n..ot to top of the manway. Consult your underground tank manufacturer for height of the manway <br /> ' This measurement is taken from the seam where the upper tube is attached to the valve body to the inside of the tank top. <br /> 20 <br />