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OPW Ball Float Inspection Reference Material <br /> ;yj Tanknology <br /> The 30MV series is designed to meet EPA's requirement to notify the delivery driver of an overfill 30 minutes prior <br /> to the overfill occuring. <br /> The 30MV will have a 1/16 inch breather hole. <br /> The 53V series is designed to alert the driver of an overfill by restricting flow when the tank reaches 90% of the <br /> liquid capacity. The 53V will have a 1/8 inch breather hole. <br /> Specifying the Proper Length 53V Ball Float <br /> • Step 1: <br /> Determine Dimension"X": Consult the tank chart(provided by the tank manufacturer)to determine the distance that <br /> corresponds to 10%of the total tank capacity <br /> • Step 2: <br /> Determine Dimension"Y": Measure the dimension from the inside top of the tank to the top of the 4"threaded tank <br /> "bung"fitting. <br /> • Step 3: <br /> Add measurements"X"and"Y". Then subtract 1/4"and round up to the nearest length ball float. <br /> Specifying the Proper Length 30MV Ball Float <br /> • Step 1: <br /> Determine Dimension"X": Consult the tank chart(provided by the tank manufacturer)to determine the distance that <br /> corresponds to 308 gallons. <br /> • Step 2: <br /> Determine Dimension"Y": Measure the dimension from the inside top of the tank to the top of the 4"threaded tank <br /> "bung"fitting. <br /> • Step 3: <br /> Add measurements"X"and"Y". Then subtract 1/4"and round up to the nearest length ball float. <br /> OPA 30 minute <br /> wamino valves will <br /> have a 1116 inch <br /> breather hole <br /> Tank Manway Mounted Extractor Tank Top Mounted Extractor <br /> OPW 1s1 00-FA-_ _,Owe 1,21 OMVR <br /> 9011 ContYnlf '- Spfll c4r6•ner <br /> 7.7 OPW 90%full valves wit <br /> _ ;ti: n3Ve 3 1/6 nch Ufe3lnef <br /> -"- nose <br /> OOWI7NTW0a' -"OPW 7l11TVe0a <br /> Rec•nry Cep i Recovery C; <br /> .OPW 400"6-' OPW 333 Swiss. OPW 6/YSA.1030-M <br /> �'Few Seel AdePwr <br /> OPW 1611 LAN' E><Mtla FIRhR Vap&Recovery AdeOeor <br /> por <br /> VaRecMwry <br /> Messer .OPW=J3 7erke, I <br /> Pmaeta PIYfa I _ <br /> OPW 0006ewe, <br /> �]v4_ Fem reel Ad.,,- <br /> OPW 63YM at JOYv, ' 1 --OPW aDMV, <br /> 3 <br /> BeR Ftoee YOM W Ne ��_� Bell Flat YerO Valve - <br />