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I TrUTM7 P Valve body: Cast aluminum Float: Nitrile rubber, closed cell foam Valve: Aluminum Seals: Viton" Upper & lower Drop Tube: Aluminum Plastic parts: Acetal Hardware: Stainless steel • Simple, Easy and Quick Installation — no excavation or special manholes required. • Economical — costs a fraction of expensive, complicated and difficult - to -install vols, urnished Complete — supplied with new upper and lower drop tubes,\ mounting hardware and thorough instructions for quick job site time. telt' Automatic.ratrtSn — no prechecks to perform, no resets and no overrides to be broken or abused. Important In order to prevent product spillage from the Underground Storage Tank (UST), properly maintained delivery equipment and a proper connection at the tight -fill adaptor are essential. Delivery personnel should be managed and trained to inspect delivery elbows and hoses for damaged and missing parts. They should always make certain there is a positive connection between the adaptor and elbow. If delivery equipment is not property maintained, or the elbow is not securely coupled to the adaptor, a serious spill may result when the DPW 71 SO closes, causing a hazard and environmental contamination. NOTE: The OPW 71 SO is designed for use on tight -fill gravity drop applications only. Do not use for pressure fill applications. • Retrofits Directly — for both new and existing tanks with 4" fill risers. • Quick Drain Feature — automatically • No Pressurization of the Tank — drains hose when head pressure is operates directly from liquid level, relieved. • Will Accept a Dipstick for Gauging Best Flow Rate in The Industry* Test -witnessed by Bowser-Morner, Inc., an independent laboratory. Results available upon request. Advantages of Overfill Prevention U C V look for this label for authentic OPW EVR Compared to Overfill Warning Systems: • Completely Automatic Operation Speeds Delivery Operations - - does not rely on the alertness or product flows unimpeded into the tank speed of response of the delivery until the hose"kick" that accompanies attendant for certainty of overfill the valve shut-off provides a clear prevention. signal that the liquid has reached the • Keeps the Top of UST "Dry," per shut-off level. EPA Requirements —eliminating Simple and Inexpensive Installation - possible leaks at loose bung fittings in both two-point and coaxial fill and the need for double containment applications, no additional excavation,' on vent lines. manholes or vent piping are required. • Does Not Rely on Pressure in the UST to Stop Flow - allowing faster fill times and reducing spill risk. Listings and U C V look for this label for authentic OPW EVR Certification g ; California Air � Approved products. Resources Board n mow$ L The CARB-certified OPW 71 SO vapor -tight Overfill Prevention Valv is designed to prevent the overfill c underground storage tanks by prov a positive shut-off of product delive The shut-off valve is an integral part the drop tube used for gravity filling.' OPW 71 SO allows easy installation (without breaking concrete) and reqt no special manholes. The OPW 71 SO is a vapor -tight two- stage shut-off valve. When the liquid level rises to about 95% of tank capacity, the valve mechanism is released, closing automatically with the flow. This reduces the flow rate to approximately 5 gpm through a bypass valve. The operator may then stop the filling process and disconnect and drain the delivery hose. As long as the liquid exceeds the 95% level, the valve will close automatically each time delivery is attempted. If the delivery is not stopped and the liquid rises to about 98% of tank capacity, the bypass valve closes completely. No additional liquid can flow into the tank until the level drops below a reset point. 7150 Instruction Sheet Order Number: H15524PA i