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wllson,North Carolina 27893 <br /> Telephone: 252.243.0150 <br /> WHEATON RETAIL Web:www.emcoretall.com <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 fill capacity, <br /> 1. Tank Diameter is TD TD= i Z� <br /> 2. Tank Capacity is TC TC= 6_6)6)�? <br /> 3. Desired Shutoff Percentage(Note NFPA Guidelines) SO%= _ <br /> 4. Shutoff Tank Capacity TC@ shutoff%=TC x 0.95 <br /> 5.Tank Level from Stick Chart for Shutoff Capacity(95%) TL@95°/D j <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= <br /> 8. Length of OPV top tube to(95%mark)on the A1100 is C- C=A+B See _ s <br /> Picture. Measure C distance from the 95%line on valve and out top tube C= <br /> 9. Distance from the top seal surface(1)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 /> 16ii <br /> 1. The seating surlece refers to the location of the OPV collar sealing point.It maybe the riser pipe or the seal surface built in to some spilt <br /> buckets. <br /> 2.Il the tank uses a manway,be sure to use the tank top tar measurement and not the top of the manway as shown in the diagram. <br /> Riser Pipe with Spilt Containment Manhole Manway Style Tank <br /> RISER PIPE <br /> 77 <br /> MAHWAY A <br /> FMR PIK A <br /> A1130 VALVE ASSEMBLY <br /> UNOERGR" <br /> 1? e <br /> SM."TANK <br /> b 1 <br /> D <br /> n <br /> � r5' _ <br /> WK J� <br /> 6.0'MAK. <br />