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OPW Offers New Overfill Prevention Valve, CARB Certified Page 2 of 3 <br /> Curing time and hassles associated with hot and cold weather conalEions are METTLE R <br /> eliminated to reduce installation time by one day. <br /> Contractors are not required to return the next day to install and test the valves. <br /> EVR compliance is assured with no time-consuming, expensive return visits to <br /> re-epoxy the valve. The special patented design of the 71 SO enables improved <br /> EVR compliance by eliminating 10 of 17 potential vapor leak passages. Typical <br /> overfill valves may have as many as 17 to 25 potential vapor leak passages. <br /> The 71 SO utilizes Polypak seals, blind holes with special taptite screws and a <br /> straight threaded joint with a diametric o-ring to help eliminate potential leak ` <br /> passages. <br /> "By equipping the 71 SO with new features such as Polypak seals and straight " "T` - <br /> threaded joints with an 'O' ring seal, we effectively eliminated the need for epoxy Elevator <br /> sealants during the installation phase while improving vaportight reliability," <br /> stated Jim Walton, Vice president & General Manager, OPW Environmental �� <br /> Systems. <br /> "There are multiple points of value derived from this feature such as faster, <br /> cleaner and more reliable installation and performance," Walton continued. <br /> M <br /> "No mess, no curing time and hassles, and no fugitive emissions or pressure EI <br /> SI <br /> decay failures. <br /> "This is a win/win for the contractor and the station owner in terms of lower 1.800-82 <br /> costs, compliance assurance, and quicker uptime. <br /> "These are key advantages over other valves, including our own 61 SO which is <br /> currently considered the industry standard." <br /> The 71 SO, like its predecessor the 61 SO, delivers superior high performance <br /> such as: Bt�rlJ <br /> rwarouinNi <br /> The fastest flow rates in the industry. <br /> Exceeding enhanced vapor recovery (EVR) requirements (maximum vapor <br /> leak rate of 0.17 CFH@2" H2O on 4-inch models). <br /> Like the 61 SO, the new 71 SO is a two-stage shut-off valve, providing: <br /> Completely automatically operation. <br /> No pre-checks to perform, no resets, and no overrides to be broken or abused. <br /> When the liquid level rises to 95% of the tank capacity, the valve mechanism is <br /> released, closing automatically with the flow. <br /> A special by-pass valve allows for hose draining to a maximum tank capacity of <br /> approximately 98%. <br /> http://www.biofuelsjournal.com/articles/OPW_Offers_New_Overfill_Prevention Valve_. . 11/7/2007 <br />