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)PW : Products: Details <br />Page 1 of 1 <br />Home .ontact Us Careers Links Logir <br />P-14Rr, I IUt `"I �; <br />Product Details <br />Search by Model Number: Browse by Categories: <br />Model Number:I <br />J category: I Select Category _ <br />Description: � <br />OPW > OPW Environmental > Underground Storage Tank Equipment > Spill Containment_ Manholes > <br />Thread -On Containment Manholes <br />OPW Threaded Riser <br />Adaptor (Face Seal <br />Adaptor) (FSA -400) <br />An OPW FSA -400 Threaded Riser Face <br />Seal Adaptor is required to provide a <br />flat, true sealing surface on threaded <br />pipes where a gasket seal exists per <br />EVR requirements. The FSA -400 is <br />installed on the fill pipe riser below the <br />spill container to provide a true sealing <br />surface for the drop tube flange on the <br />61SO-40OC-EVR overfill prevention <br />valves. The FSA -400 is also required <br />on tank gauging risers and optional on <br />vapor risers and rotatable adaptors. <br />view more detailed image » <br />FeaturesI Osderin_g._specifcatio.rls Bdd.jtjonal„Resou,[ces <br />Features <br />The FSA -400 Threaded Riser Face Seal Adaptor is installed on the fill pipe below the spill container t, <br />provide a true sealing surface for the drop tube flange on the 61SO-EVR overfill prevention valve. <br />The 61SO-EVR series valve is installed in the base of the OPW EVR spill container with the patent <br />pending 611SK Jack Screw device. This configuration allows liquid in the spill container to be <br />drained directly into the drop tube thereby isolating the drain valve from the tank ullage, eliminatinc <br />a notorious leak point in previous systems, <br />