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WALTON <br /> ENGINEERING, INC. � r® <br /> Overfill Preventiontion-OPW 61 and 71 Series Devices <br /> Owner.- <br /> Facility: <br /> r:Facility: <br /> OPW Overfill Model Number: <br /> Part 1-gr2per Heiculation <br /> Tank 1 Tank 2 Tank 3 Tank 4 <br /> Maximum Tank Volume Per: n <br /> pa <br /> Max shut off requirement for flapper is 95% B95% , <br /> .Multiply Max tank volume by 95% C Gallow <br /> Use tank chart or ATG to determine height of <br /> Indies <br /> cal volumeD <br /> Measure top of fill riser ds,or face sealE <br /> a <br /> Tank di m Tank Chart) r rl <br /> r <br /> zo <br /> Upper Tube in T (G)F-D=G G p <br /> Sub 2"from.upper tube in tank G-2"=K K <br /> Calculated tube l (I) I <br /> K+ I <br /> Acred upper tube length(Without <br /> fill ter jinches <br /> Part 2-Device Certification Criteria Evaluation <br /> Does the overfill prevention device meet the 0% <br /> requirement? <br /> Is the actual measured upper tu6e length 6.5 inches or <br /> more than the fill riser?(J must be 6.5"or more than E) <br /> Does the overfill prevention device furiction as ? <br /> (inspect the device for damage,contamination,fitedoin of <br /> movement, ing due to wear and corrosion) <br /> Device Overfill Certification PASS/FAIL <br /> Drop Tube Testing PASS/FAIL + <br /> Technician certifies that the device is operationally compliant. <br /> Signature of Technician: Date: <br /> T , hnici 's Name: <br />