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o The 71 SO utilizes Polypak seals, blind holes with special taptite screws <br /> and a straight threaded joint with a diametric o-ring to help eliminate <br /> potential leak passages <br /> "By equipping the 71 SO with new features such as Polypak seals and straight threaded <br /> joints with an "O" ring seal, we effectively eliminated the need for epoxy sealants during the <br /> installation phase while improving vaportight reliability," stated Jim Walton, Vice president & <br /> General Manager, OPW Environmental Systems. "There are multiple points of value <br /> derived from this feature such as faster, cleaner and more reliable installation and <br /> performance. No mess, no curing time and hassles, and no fugitive emissions or pressure <br /> decay failures. This is a win/win for the contractor and the station owner in terms of lower <br /> costs, compliance assurance, and quicker uptime. These are key advantages over other <br /> valves, including our own 61 SO which is currently considered the industry standard." <br /> The 71 SO, like its predecessor the 61 SO, delivers superior high performance such as: <br /> • The fastest flow rates in the industry <br /> • Exceeding enhanced vapor recovery (EVR) requirements (maximum vapor leak <br /> 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 /> o No pre-checks to perform, no resets, and no overrides to be broken or <br /> abused. <br /> o When the liquid level rises to 95% of the tank capacity, the valve mechanism <br /> is released, closing automatically with the flow. <br /> o A special by-pass valve allows for hose draining to a maximum tank capacity <br /> of approximately 98%. Above 98%, the bypass valve closes completely, <br /> ensuring that no additional liquid can flow into the tank until the level drops <br /> below a predefined reset point. <br /> The new OPW 71 SO is available for direct-bury and remote fill applications. For additional <br /> information on the new, next generation OPW 71 SO Overfill Prevention Valve, contact Aldo <br /> Sucaldito at 513-870-3177 or email at asucaldito(a.opw-fc.com. <br /> OPW Fueling Components, founded in 1892, is the global leader in dispensing products, <br /> environmental systems, fuel management systems and clean energy fueling products, including <br /> dispensing nozzles for vapor recovery, gasoline, diesel, LPG, Hydrogen and CNG; swivels, <br /> breakaways, valves and fittings; underground and above ground storage tank equipment, spill <br /> containers, overfill prevention devices, secondary containment sumps and flexible piping; tank <br /> gauging equipment and automated fuel management systems. <br />