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Wilson,North Carolina 27893 <br /> Telephone: 2 52.243.0150 <br /> WHEATON RETAIL Web:www.emcoretall.corn <br /> A1100 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 9501a 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 rill capacity, <br /> 1. Tank Diameter is TD TD= c j <br /> 2. Tank Capacity is TC TC= <br /> 3. Desired Shutoff Percentage(Note NFPA Guidelines) SO%= _ <br /> 4. Shutoff Tank Capacity TC@ shutoff%=TC x 0.95 //ry! a <br /> 5.Tank Level from Stick Chart for Shutoff Capacity(95%) TL@95% ` <br /> 6. Tank"B" Dimension B=TD-TL@95% B= <br /> 7. Distance from to seal surface T to the to , C <br /> p ( } p(inside)of the tank(2) is A A= y�a C2 <br /> B. Length of OPV top tube to(95%mark)on the Al 100 is C- C=A+B See 7 <br /> Picture. Measure C distance from the 95%line on valve and cut top tube C= <br /> 9. Distance from the top seal surface(t)to the tank bottom is D D=Tank Dia+A D= <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 S PAT�ES so 0.. <br /> f. 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 spill <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 shown in the diagram. <br /> Riser Pipe with Spill Containment Manhole Manway Style Tank <br /> -T <br /> RISER PIPE <br /> -CORTN"MET+I NARROtE <br /> MANWAY A <br /> RISER PIPE <br /> A1100 VALVE ASSEMMY <br /> UNDEACR TAW <br /> ]rORA"E <br /> TAW <br /> �il B <br /> u, e <br /> 0 <br /> 0 <br /> e.o'urot. <br /> 6.0'MAX. <br />