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Materials <br />Look for this label for <br />uLC authentic DPW EVR <br />Getomk Air <br />Resources Board <br />Approval products. <br />Important <br />- e <br />In order to prevent product <br />spillage from the Underground <br />Storage Tank (UST), property <br />maintained delivery equipment <br />and a proper connection at the <br />tight -fill adaptor are essential. <br />Delivery personnel should be <br />- <br />managed and trained to inspect <br />Hardware: Stalrtless..teal <br />delivery elbows and hoses for <br />damaged and missing parts. <br />4� They should always make <br />�rt 1t' certain there is a positive <br />Features <br />ai connection between the adaptor <br />and elbow. If delivery equipment <br />- Simple, Eos and Quick Installation <br />p � Y <br />is not properly maintained, or the <br />-elbow is not securely "coupled <br />— no excavation or special manholes <br />to the adaptor, a serious spill <br />required. <br />may result when the DPW 71 SO <br />closes, causing a hazard and <br />® Economical — costs a fraction of <br />environmental contamination. <br />expensive, complicated and difficult- <br />NOTE: The OPW 71 SO is <br />to -install valves. <br />designed for use on tight -fill <br />♦ Furnished Complete — supplied <br />gravity drop applications only. <br />Do not use for pressure fill <br />with new upper and lower drop tubes, <br />applications. <br />mounting hardware and thorough <br />instructions for quick job site time. <br />♦ Completely Automatic Operation — no <br />♦ Retrofits. Directly — for both new and <br />prechecks to perform, no resets and no <br />existing tanks with 4" fill risers. <br />overrides to be broken or abused. <br />♦ Quick Drain Feature — automatically <br />♦ No Pressurization of the Tank — <br />drains hose when head pressure is <br />operates directly from liquid level. <br />relieved. <br />♦ Will Accept a Dipstick for Gauging <br />♦ Best Flow Rate in The Industry* <br />a Test -witnessed by Bowser-Morner, Inc., an Independent laboratory. Results available upon <br />request. <br />Listings and <br />Certifications <br />=_ <br />ei <br />Look for this label for <br />uLC authentic DPW EVR <br />Getomk Air <br />Resources Board <br />Approval products. <br />- e <br />The CARB-certified OPW 71 SO <br />-vapor-tight-Overfill Prevention Valve <br />is designed to prevent the overfill of <br />underground storage -tanks by provi <br />a positive shut-off of product deliver, <br />The shut-off valve is an integral parte <br />the drop tube used for gravityflling. T <br />OPW 71 SO allows easy installation <br />(without breaking concrete) and requii <br />no special manholes. <br />The OPW 71 SO is a vapor -tight two- <br />stage shut-off valve. When the liquid <br />level rises to about 95% of tank capacity, <br />the valve mechanism is released, <br />closing automatically with the flow. This <br />reduces the flow rate to approximately <br />5 gpm through a bypass valve. The <br />operator may then stop the filling <br />process and disconnect and drain the <br />delivery hose. As long as the liquid <br />exceeds the 95% level, the valve will <br />close automatically each time delivery <br />is attempted. <br />If the delivery is not stopped and <br />the liquid rises to about 98% of tank <br />capacity, the bypass valve closes <br />completely. No additional liquid can flow <br />into the tank until the level drops below <br />-a reset -point. <br />71SO Instruction Sheet Order <br />Number. H15524PA <br />a DOV®tcoamaxr <br />