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E C Wilson,North Carol Ina 27893 <br /> Telephone: 252.243.0150 <br /> VVHEATON RETAIL Web:www,emoorstail.corn <br /> Al 100 Overfill Prevention Valve Calculation Sheet <br /> This calculation sheet is to document the dimensions needed for proper installation and should be used <br /> only with the instructions. This sheet assumes 95%maximum fill based on NFPA30 guidelines. Length <br /> measurements are in inches. Contact the local Authority Having Jurisdiction(AHJ)to determine all <br /> regulatory requirements regarding fill capacity, <br /> 1. Tank Diameter is TD TD= �� f <br /> 2.Tank Capacity is TC TC= rZ <br /> 3. Desired Shutoff Percentage(Note NFPA Guidelines) SO%= <br /> 4. Shutoff Tank Capacity TC@ shutoff%=TC x 4.95 <br /> 5. Tank Level from Stick Chart for Shutoff Capacity(95%) TL@950AD 1�, <br /> 6. Tank'B" Dimension B=TD-TL@95% B= <br /> 7. Distance,from top seal surface(1)to the top(inside)of the tank(2) is A A= G ; <br /> 8. Length of OPV top tube to(95%mark)on the A1100 is C- C=A+B See <br /> Picture, Measure C distance from the 95%line on valve and cut top tube C= ` 9�� <br /> 9. Distance from the top seal surface(1)to the tank bottom is D D=Tank Dia+A D= oZt5 <br /> 10.OPV Assembly Overall Length OAL=D-6 inches. Screw together top and <br /> bottom tube assemblies. Measure from top tube end and cut bottom tube either <br /> straight or 45 degree at operators preference. (See diagram to insure the 6" <br /> maximum clearance is maintained) OAL= <br /> U.SRATENtS5T2 70;55 <br /> ac+n <br /> 1. The sealing surface refers to the location of the OPV collar sealing point It maybe the riser pipe or the seal surface built into some spit) <br /> buckets. <br /> 2.If the tank uses a manway,be sure to use the tank top for measurement and not the top of the manway as shovm in the diagram. <br /> Riser Pipe <br /> with Spill Containment Manhole Manway Style Tank <br /> RISER RIPE— <br /> AIAtIWAYA <br /> wI IOU VALVE A-EYBI.Y <br /> Ui+DElyOgOUND <br /> srawncc rnmc <br /> 'qP B <br /> II, ^ T <br /> a - <br /> D <br /> n <br /> 8.0"MAX <br /> 1 <br />