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Rug 04 04 12:00p RHI -.Design Group <br />OPW Overfill Prevention - EVR <br />[92 13-9709 p.6 <br />The OPW 61SO 40OC-EVR series Overfill Prevention Valves are certified for <br />installation on OPW Phase 1 EVR Systems. The vapor -tight EVR 61 SO's are designed to <br />provide positive shut-off of product delivery before an overfill condition occurs per EPA <br />requirements without intervention from the transport driver. The valve features a sealed . <br />float pivot and a threaded lower tube connection and exceeds the EVR requirement for a <br />maximum vapor leak rate of 0.17CFH@2" HZO. The 61SO-EVR series valve is installed <br />in the base of the OPW EVR spill container with the patent pending 6 USK Jack Screw <br />Device. This configuration allows liquid in the spill container to be drained directly into <br />the drop tube thereby isolating the drain valve from the tank ullage, eliminating a <br />notorious leak point in previous systems. <br />OPW Overfill Prevention - EVR <br />