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Overfill Prevention Inspection - OPW 61 and 71 Series Devices <br />Date: ______________________________________________________________________________________ <br />Owner: ____________________________________________________________________________________ <br />Facility:____________________________________________________________________________________ <br />OPW Overfill Model Number: _________________________________________________________________ <br />Part 1 - Proper Height Setting Calculation <br /> Tank 1 Tank 2 Tank 3 Tank 4 <br />Maximum Tank Volume Per: A Gallons <br />Max shut off requirement for flapper is 95% B 95% <br />Multiply Max tank volume by 95% C Gallons <br />Use tank chart or ATG to determine height of <br />calculated volume D Inches <br />Measure top of fill riser threads, or face seal <br />adapter E Inches <br />Tank diameter (From Tank Chart) F Inches <br />Upper Tube in Tank (G) F-D = G G Inches <br />Subtract 2" from upper tube in tank G-2"= K K Inches <br />Calculated minimum upper tube length (I) <br />K+E=I I Inches <br />Actual measured upper tube length (Without <br />fill adapter) (J) J Inches <br />Part 2 - Device Certification Criteria Evaluation <br />Does the overfill prevention device meet the 95% <br />requirement? <br />Is the actual measured upper tube 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 function as required? <br />(Inspect the device for damage, contamination, freedom of <br />movement, weakening due to wear and corrosion) <br /> <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 />Technician's Name:_________________________________________