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MAL The OPW 53-V Series Float Vent Valves are designed <br />to be installed in OPW 233-V Series extractor fittings to <br />form a system to help prevent product mixing, and to <br />meet the Federal EPA technical standards for overfill <br />prevention of petroleum UST's. <br />K <br />The OPW 53-V Series Float Vent Valves have a <br />stainless steel ball which in an overfill condition, seats <br />tightly against a specially designed valve seat, restricting <br />the flow of vapors back to the delivery transport, or tank <br />vent. The pressure created in the UST by this vapor <br />flow restriction works against the head of liquid remain- <br />ing in the delivery transport and hoses, to reduce the <br />incoming flow rate. These valves are superior to other <br />valves because of the stainless steel ball float and <br />specially designed Duragard® coated seat which helps <br />eliminate valve hang up due to corrosion. <br />E*1171 <br />OPWO Float Vent Valves are <br />Covered Under Patent No. 3,736,950 <br />Model 53 -VM shown <br />Product No. A B C D E Weight <br />and Suffix (Dimensions in inches) Lbs. <br />Used as an integral part of the OPW overfill system to 53 -VM -0060 1013/16 3 1A6 61/6 11/2 2.16 <br />slow down the flow of liquid into the storage tank, and <br />provide an overfill warning to the operator. <br />53-VML <br />Same as 53 -VM but 12"D dimension, for double 53-VML-0120 161 'As 3 1/e 12 11/2 3.99 <br />wall tanks. <br />53-VML <br />Same as 53 -VM but 16"D dimension, for <br />53-VML-0160 x. <br />2011/16 <br />3 <br />'/e <br />16 <br />11/2 <br />5.30 <br />8' diameter, fiberglass & steel tanks, single w <br />53-VML <br />Same as 53 -VM but 18"D dimension, for <br />53-VML-0180' <br />2211/16 <br />3 <br />1/6 <br />18 <br />11/2 <br />6.02 <br />8' diameter, fiberglass & steel tanks, double wall. <br />53-VML <br />Same as 53 -VM but 21"D dimension, for <br />53-VML-0210" <br />25"A6 <br />3 <br />'A <br />21 <br />11/2 <br />6.80 <br />8' diameter, fiberglass & steel tanks, <br />double or single wall; with manway, no extension. <br />53-VSS <br />Used to minimize product mixing when vent lines <br />53-VSS-0065 <br />913/16 <br />3 <br />1/6 <br />51/e <br />11/2 <br />1.80 <br />are manifolded underground. <br />53-VTS <br />Similar to 53-VSS except vent bleed hole is only Y,6". <br />53-VTS-0070 <br />913/;6 <br />3 <br />'A6 <br />5'/e <br />11/2 <br />1.90 <br />53 -FC <br />Used only on vapor return line, has no bleed hole. <br />53 -FC -0046 <br />727/32 <br />3 <br />NONE <br />35/32 <br />N/A <br />1.23 <br />Designed to meet the 90% requirement established by EPA for flow restriction and overfill warning. <br />Determine the length required for your specific UST application with the information on the following page. <br />Reliable Proven Concept. The basic concept has been <br />proven in numerous applications to prevent product <br />contamination. <br />Corrosion Resistance. The OPW float vent valve is <br />coated with Duragard® to resist corrosion and valve <br />hang up. <br />Ease of Servicing. The float vent valve assembly can be <br />Product Line Flexibility. The various OPW float vent <br />valves and extractor fittings assemblies can be combined <br />to meet various piping requirements and/or system <br />operating characteristics. <br />Adaptable. Many tanks are already equipped with OPW <br />extractor assemblies and therefore overfill prevention can <br />be achieved by installing the OPW 53-VML. <br />easily withdrawn eliminating the need to dig to the tank for E Ease of Testing. With use of OPW Overfill Systems, the <br />service. Allows tank to be plugged for testing. extractors are easily plugged for testing. <br />LFh <br />