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)PW : Products : Details Page 1 of 1 <br /> C> FM VW4111� <br /> Hom ontact Us Careers Links Logir <br /> I-1PRDU <br /> » Product Details <br /> Search by Model Number: Browse by Categories: <br /> Model Number: 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 Features <br /> Ordering.Spec cations_. Ad��ti9gal...Resour�e.� <br /> Adaptor (Face Seal <br /> Adaptor) (FSA-400) <br /> Features <br /> An OPW FSA-400 Threaded Riser Face <br /> Seal Adaptor is required to provide a The FSA-400 Threaded Riser Face Seal Adaptor is installed on the fill pipe below the spill container b <br /> flat, true sealing surface on threaded provide a true sealing surface for the drop tube flange on the 61SO-EVR overfill prevention valve. <br /> pipes where a gasket seal exists per The 61SO-EVR series valve is installed in the base of the OPW EVR spill container with the patent <br /> EVR requirements. The FSA-400 is pending 613SK Jack Screw device. This configuration allows liquid in the spill container to be <br /> installed on the fill pipe riser below the drained directly into the drop tube thereby isolating the drain valve from the tank ullage,eliminatinc <br /> spill container to provide a true sealing a notorious leak point in previous systems. <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 /> d II <br /> 7771 <br /> I�I <br /> it <br /> I <br /> I V it <br /> .k <br /> r <br /> view more detailed image» <br />