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Tanknology OPW Ball Float Inspection Reference Material <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 118 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 /> OPW 30 minute <br /> warning valves will <br /> have a 1116 nch <br /> breather hole <br /> Tank Manway Mounted Extractor Tank Top Mounted Extractor <br /> OPW 1-21 WE" �1� OPW 1,2100-EVR <br /> Ull coetamer Ball COM•Mr <br /> OPW 90%full valves wAl <br /> _ have a 116 etch breather <br /> '1 hole <br /> OPW 17t1T W w+r OPW17MTVAW <br /> C <br /> Recovery Cao <br /> oPwaaNrtee, OPW 233Yenae.. OPW611flk1030M <br /> OPW 1611 Serle& -F—S"McF1er ElYeper FIUeO\. vl p y fte~y A&WOr <br /> V.P.Recover \ <br /> Mads Flume <br /> -OPW/0e NrMh <br /> . -.. I WIN 53VN W 30YV, �I -..- I .—OPW 53VYa0W <br /> 3 , <br /> &YrI F oW YMVar+e 860 Fbat VW4 Valve <br /> RECEINED <br /> "Ay 1C ? <br />