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• www. opw toobai. com a Materials Important OPW 71SO Overfill Valve body : Cast aluminum In order to prevent product Prevention Valves Y spillage from the Underground Float: Nitrile rubber, closed cell foam # Storage Tank (UST), properly maintained delivery equipment The CARB-certified OPW 71 SO Valve : Aluminum and a proper connection at the tight-fill adaptor are essential . vapor-tight Overfill Prevention Valve Seals : Vlton® Delivery personnel should be Upper & lower Drop Tube : Aluminum managed and trained to inspect is designed to prevent the overfill of delivery elbows and hoses for underground storage tanks by providing Plastic parts : Acetal damaged and missing parts , a positive shut-off of product delivery. Hardware: Stainless steel They should always make certain The shut-off valve is an integral art of certain there is a positive g connection between the adaptor the drop tube used for gravity filling. Features and elbow. If delivery equipment The OPW 71 SO allows easy installation is not properly maintained , or the ♦ Simple, Easy and Quick Installation — elbow is not securely coupled (without breaking concrete) and requires p Y to the adaptor, a serious spill no special manholes. no excavation or special manholes may result when the OPW 71 SO closes, causing a hazard and The OPW 71 SO is a vapor-tight two- required . environmental contamination , stage shut-off valve . When the liquid ♦ Economical — costs a fraction of level rises to about 95% of tank capacity, expensive, complicated and difficult- NOTE : The DPW 71 SO is designed for use on tight-fill the valve mechanism is released , to-install valves . gravity drop applications only. closing automatically with the flow. This ♦ Furnished Complete — supplied p d not use for pressure fill areduces the flow rate to approximately applications. PP Y with new upper and lower drop tubes , 5 gpm through a bypass valve . The mounting hardware and thorough operator may then stop the filling instructions for quick job site time . process and disconnect and drain the ♦ Completely Automatic Operation — no ♦ Retrofits Directly — for both new and delivery hose . As long as the liquid prechecks to perform , no resets and no existing tanks with 4" fill risers . exceeds the 95 % level , the valve will overrides to be broken or abused . ♦ Quick Drain Feature — automatically close automatically each time delivery ♦ No Pressurization of the Tank — drains hose when head pressure is is attempted . operates directly from liquid level . relieved . If the delivery is not stopped and ♦ Will Accept a Dipstick for Gauging ♦ Best Flow Rate in The Industry* the liquid rises to about 98 % of tank capacity, the bypass valve closes completely. No additional liquid can flow Advantages of Overfill Prevention into the tank until the level drops below Compared to Overfill Warning Systems: a reset point . ♦ Completely Automatic Operation ♦ Speeds Delivery Operations — NOTE : The 71SO Overfill Prevention — does not rely on the alertness or product flows unimpeded into the tank Valve can be adjusted to shutoff at any speed of response of the delivery until the hose "kick" that accompanies desired tank capacity. Please contact attendant for certainty of overfill the valve shut-off provides a clear the Authority Having Jurisdiction (AHJ ) prevention . signal that the liquid has reached the and review local , state , and national ♦ Keeps the Top of UST " Dry, " per shut-off level . codes to determine the regulatory EPA Requirements — eliminating ♦ Simple and Inexpensive Installation — requirements governing shut-off possible leaks at loose bung fittings in both two-point and coaxial fill capacity in your region , as well as and the need for double containment applications , no additional excavation , take into account other considerations on vent lines . manholes or vent piping are required . such as extreme tank tilt. In all cases , ♦ Does Not Rely on Pressure in the the upper tube must protrude into the UST to Stop Flow — allowing faster fill tank at least 6 1l2 " to ensure that the times and reducing spill risk. valve can shut off flow into the tank completely before the top of the tank is wetted as per EPA requirements . Listings and — Look for this label for 0 ULC authentic OPW EVR 71SO Instruction Sheet Order Certifications California Air Approved products. Resources Board ovw� Number: H15524PA 102 9393 Princeton-Glendale Road . Hamilton, Ohio USA 45011 s Phone: (800) 422-2525 s Fax: (800) 421 -3297 020113 OPW Fueling Components