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OPW Installation, Operation, and Maintenance Manual, Page 72 Executive Order VR -10&u <br />This section intentionally left blank. <br />Date of manufacture on this product is located on <br />the flat area of the valve body, under float. <br />GENERAL INSTRUCTIONS <br />The OPW 61 SO Overfill Prevention Valve is designed for <br />tight fill, gravity drop applications to help prevent acci- <br />dental or intentional overfilling of underground storage <br />tanks. It is installed in the UST drop tube in place of a <br />standard drop tube. <br />The main 61 SO valve closes when liquid level is at 95% of <br />the top of the tank reaches the initial shut off point. A <br />small bypass valve remains open to allow the delivery <br />hose to drain at 3-5 gallons per minute. If the delivery <br />truck valve is not closed after initial shut-off, the bypass <br />valve will close and will restrict all fuel delivery to en- <br />sure that the top of the tank is not wetted per EPA re- <br />quirements. <br />The 61 SO EVR approved models of the 61 SO are de- <br />signed to be installed with the following OPW products; <br />Face Seal Adaptor, OPW Spill Container or Multi -port, Jack <br />Screw Kit, Rotatable Product Adaptor, and Product Cap. <br />IMPORTANT <br />Read these assembly and installation instructions com- <br />pletely and carefully prior to starting. Check to make <br />sure all parts have been provided. Use only the parts <br />supplied; substitution of parts may cause product faik <br />ure. <br />Failure to follow instructions may cause improper prod- <br />uct operation or premature failure which may permit <br />storage tank overfill. An overfilled storage tank may <br />create hazardous conditions and/or environmental con- <br />tamination. <br />CAUTION <br />Da not remove elastic band from around float until <br />instructed to do so, as damage to valve may result. <br />WARNING <br />Failure to properly connect delivery hose and el- <br />bow, and/or disconnecting a liquid filled delivery <br />hose or elbow will result in a hazardous spill, which <br />may result in personal injury, property damage, fire, <br />explosion, and water and soil pollution. <br />• Make sure all connections, including the hose and <br />elbow connections, between storage tank and <br />transport are securely coupled. <br />• Make sure the lip seal and/or all gaskets in the deliv- <br />ery elbow are properly in place to prevent spills. <br />• Do not operate with damaged or missing part <br />s, <br />which prevent tight connections. <br />Normal Operation, A Hose "Kick" and reduced flow <br />