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Dec 13 02 01:35p <br />`r • , OVERFILL PREVENTION VALVES <br />559P770106 <br />The OPW 61 SO Overfill Prevention Valve is designed to prevent the overfill of underground <br />storage tanks by providing a positive shut-off of product delivery. The shut-off valve is an integral <br />part of the drop tube used for gravity filling. The OPW 61 SO allows easy installation (without <br />breaking concrete) and requires no special manholes. <br />The OPW 61SO is a two-stage shut-off valve. When the liquid level rises to about 95% of tank <br />capacity, the valve mechanism is released, closing automatically with the flow. This reduces the T: <br />flow rate to approximately 5 gpm through a bypass valve. The operator may then stop the filling <br />process and disconnect and drain the delivery hose. As long as the liquid exceeds the 95% level, <br />the valve will close automatically each time delivery is attempted. <br />If the delivery is not stopped and the liquid rises to about 98% of tank capacity, the bypass <br />valve closes completely. No additional liquid can flow into the tank until the level drops below a <br />reset point. <br />Models of the 61SO are available to meet virtually any UST application including two-point, <br />:oaxial, poppeted coaxial and remote fill, The 61SO-3000 provides two-point overfill protection for <br />3" riser pipes, and the 61SO.1000 and 61SO-100C (CARB) feature a grooved -tube design for use <br />Nith tank gauging systems. Methanol and CARB (vapor -tight) approved models are also available. <br />Fhe OPW 61SO is approved by the New York City Fire Department. (Approval #4902) <br />IMPORTANT <br />In order to prevent product spillage from the Underground Storage Tank (UST), properly maintained delivery equipment and a proper <br />connection at the tight -fill adaptor are essential. Delivery personnel should be managed and trained to inspect delivery elbows and <br />hoses for damaged and missing parts. They should always make certain there is a positive connection between the adaptor and <br />elbow. If delivery equipment is not properly maintained, or the elbow is not securely coupled to the adaptor, a serious spill may result <br />when the OPW 61SO closes, causing a hazard and environmental contamination. <br />VOTE: The OPW 61SO is designed for use on tight -fill gravity drop applications only. Do not use for pressure fill applications. <br />=eatures: <br />► Simple, Easy and Quick Installation - <br />No excavation or special manholes <br />required. <br />► Economical - Costs a fraction of <br />expensive, complicated and difficult <br />to install valves. <br />► Furnished Complete - Supplied with <br />new upper and lower drop tubes, <br />mounting hardware and thorough <br />instructions for quick job site time. <br />Completely Automatic Operation - No <br />prechecks to perform, no resets, and no <br />overrides to be broken or abused. <br />♦ No Pressurization of the Tank - <br />Operates directly from liquid level. <br />♦ Will Accept a Dipstick for Gauging. <br />♦ Retrofits Directly - For both new and <br />existing tanks with 3" or 4" fill risers. <br />♦ Quick Drain Feature - Automatically <br />drains hose when head pressure is <br />relieved. <br />♦ Best Flow Rate in The Industry.' <br />' Test witnessed by Bowser-Morner, Inc., an <br />independent laboratory. Results available <br />upon request. <br />dvantages of Overfill Prevention <br />ompared to Overfill Warning Systems: <br />Completely Automatic Operation - <br />Does not rely on the alertness or speed <br />of response of the delivery attendant, <br />for certainty of overfill prevention. <br />Keeps the Top of UST "Dry," per <br />EPA Requirements - Eliminating <br />aossible leaks at loose bung fittings <br />ind the need for double containment <br />in vent lines. <br />)oes Not Rely on Pressure in the <br />JST to Stop Flow - Allowing faster fill <br />imes and reducing spill risk, <br />♦ Speeds Delivery Operations - <br />Product flows unimpeded into the tank <br />until the hose "kick" that accompanies <br />the valve shut-off provides a clear <br />signal that the liquid has reached the <br />shut-off level. <br />♦ Simple and Inexpensive Installation - <br />In both two-point and coaxial rill <br />applications, no additional excavation, <br />manholes or vent piping are required. <br />Certifications NY City Fire <br />and Listings CARB Department <br />61SO Series Initial Approval <br />Certification #4902 <br />Letter Oct 88 <br />Updated Approval <br />Letter #97-04 <br />61SOM Approval <br />Letter #90.5 <br />6150P Approval <br />Letter #92-8 <br />Materials <br />Valve body: cast aluminum <br />Float: nitrile rubber, closed cell foam <br />Valve: aluminum <br />Seals: viton <br />Upper & lower Drop Tube: aluminum <br />Plastic parts: acetal <br />Hardware: stainless steel <br />p.2 <br />