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OPW 71SO Overfill Materials Important Prevention Valves � In order to prevent product VV Yalvi Body: Cast aluminum spillage from the Underground The CARB - certified OPW 71 SO Moat: Nitrile rubber, closed cell foam Storage Tank (UST), properly va or-ti ht Overfill Prevention Valve maintained delivery equipment P 9 and a proper connection at the I Valves Aluminum is designed to prevent the overfill of tight-fill adaptor are essential . underground storage tanks by providing Seals: VitonO Ve Delivery personnel should a positive shut-off of product delivery. Upper & lower Drop Tube : Aluminum be managed and trained p P ry pA p a r to inspect delivery elbows The shut-off valve is an integral part of IVPlastic parts: Acetal and hoses for damaged and the drop tube used for gravity filling . s missing parts. They should and I are: Stainless Steel always make certain there The OPW 71 SO allows easy installation is a positive connection (without breaking concrete) and requirest=eatares between the adaptor and no special manholes. elbow. If delivery equipment Simple, Easy and Quick is not properly maintained, The OPW 71 SO is a vapor-tight two- Installation — no excavation or or the elbow is not securely stage shut-off valve. When the liquid special manholes required . coupled the adaptor, a level rises to about 95 % of tank p q serious spill may result when 40 Economical — costs a fraction the DPW 71 So closes, causing capacity, the valve mechanism is of expensive, complicated and a hazard and environmental , released, closing automatically with p p contamination. the flow. This reduces the flow rate to difficult-to- install valves. approximately 5 gpm through a bypass � Furnished Complete — supplied NOTE: The DPW 71 SO is valve. Theo operator may then stop the with new upper and lower drop tubes, f f designed for use is tight-fill p y p gravity drop applications only. filling process and disconnect and drain mounting hardware and thorough r Do not use for pressure the delivery hose. As long as the liquid instructions for quick job site time. ' . fill applications. exceeds the 95 % level , the valve will 46► Completely Automatic Operation close automatically each time delivery — no prechecks to perform, no resets + Retrofits Directly — for both new is attempted . and no overrides to be broken and existing tanks with 4 " fill risers. If the delivery is not stopped and the or abused . Quick Drain Feature — liquid rises to about 98 % of tank No Pressurization of the Tank — automatically drains hose when head capacity, the bypass valve closes operates directly from liquid level . pressure is relieved . completely. No additional liquid can flow WIII Accept a Dipstick ® Best Flow Rate in The Industry * into the tank until the level drops below for Gauging a reset point. * OPW Test Lab results NOTE : The 71 SO Overfill Prevention Valve can be adjusted to shutoff at anyAdvantages of Overfill Prevention desired tank capacity. Please contact the ;Compared to Overfill Warning Systems: Authority Having Jurisdiction (AHI) and Completely Automatic faster fill times and reducing review local , state, and national codes to Operation - does not rely on the spill risk, determine the regulatory requirements alertness ors speed of response of the governing shut-off capacity in your p p Speeds Delivery Operations region , as well as take into account delivery attendant for certainty of — product flows unimpeded into other considerations such as extreme overfill prevention . the tank until the hose " kick " that tank tilt. In all cases, the upper tube *► Keeps the Top of UST " Dry," accompanies the valve shut-off must protrude into the tank at least per EPA Requirements Also provides a ;, clear signal that the 6 1 /2 " to ensure that the valve can shut eliminating possible leaks at loose liquid has reached the shut-off level, off flow into the tank completely before bung fittings and the ;need for Simple and Inexpensive the top of the tank is wetted as per double containment on vent lines. Installation — in both tvuo point EPA requirements. o Does Not Rely on Pressure in and coaxial fill applications, no IV IV IV I the UST to Stop Flow — allowing additional excavation, manholes or I VIA 71 SO Instruction Sheet Order vent piping are required . Number : H15524PA Look for this label for Listings an = authentic OPW EVR — U`I� Approved products. tificatfons Re olurc s� Board OPW 71SOM is EVR Approved for E85