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0 <br />IMPORTANT <br />0 <br />Installing the incorrect length OPW 53V or 30MV Ball Float Vent Valve for your specific application may <br />result in delivery flow restriction at levels exceeding requirements established by the U.S. EPA. Always <br />consult the appropriate tank charts and determine the specifics of your tank installation to determine the <br />appropriate length OPW 53V or 30MV. The illustration and instructions below are intended to serve as a guide <br />in this determination, <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 <br />distance that 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 <br />tank "bung" fitting. <br />Step 3: <br />Add measurements "X" and "Y". Then subtract 114" and round up <br />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 detennine the <br />distance that 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 <br />tank "bung" fitting. <br />Step 3: <br />Add measurements "X" and "Y". Then subtract 114" and round up to the nearest length ball float. <br />Diagram <br />Tank. Manway Mounted Extractor Tank Top Mounted Extractor <br />OPW 1.21Ct1.EVR - - -_ oPVl1-2100-EVR <br />! I Spill Container <br />Spall 0antaaner - � � -- <br />a 1 <br />OPW 1711T Vapor <br />Recorory Cap <br />OPW 1611 Series <br />Vapor Recovery <br />Ada pto r <br />OPW 400 Serie, <br />Face Saal Adaptor <br />0 PW 233 Series, <br />Exlrattor Fittnq <br />oPW Saw or 30w. <br />Balt Float Vent Valve <br />0P4hf 53VM ar 30MV, <br />` Ball Float Vent Yalve <br />OPW 1111TVaW <br />Recovery Cap <br />OPW2338e"Z 1 <br />0PW51VSA-%020-EVR <br />Fartra0 FlCfutg ., <br />Wpor Recovery Adaptor <br />�OPW�ODSeriee, <br />Face Seal Ad oWr <br />0P4hf 53VM ar 30MV, <br />` Ball Float Vent Yalve <br />