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Pi <br />61JSK-4RMT Includes: <br />Cap <br />Adaptor <br />Trap Door <br />Jack Screw <br />OPW Overfill Prevention - EVR <br />The OPW 61SO-40OC-EVR series Overfill Prevention Valves are certified for installation on <br />OPW Phase 1 EVR Systems. The vapor tight EVR 61SO's are designed to provide positive <br />shut-off of product delivery before an overfill condition occurs per EPA requirements <br />without intervention from the transport driver. The valve features a sealed float pivot and a <br />threaded lower tube connection and exceeds the EVR requirement for a maximum vapor leak <br />rate of .17CFH @2" H2O. The 61SO-EVR series valve is installed in the base of the OPW <br />EVR spill container with the patent pending 61JSK Jack Screw device. This configuration <br />allows liquid in the spill container to be drained directly into the drop tube thereby isolating <br />the drain valve from the tank ullage, eliminating a notorious leak point in previous systems. <br />OPW Overfill Prevention - EVR <br />