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• <br />IMPORTANT: OPW products should be used in compliance with applicable federal, state, provincial, and local <br />laws and regulations. Product selection should be based on physical specifications and limitations and <br />compatibility with the environment and materials to be handled. OPW MAKES NO WARRANTY OF <br />FITNESS FOR A PARTICULAR USE. All illustrations and specifications in this literature are based on the <br />latest product information available at the time of publication. OPW reserves the right to make changes at any <br />time in prices, materials, specifications and models and to discontinue models without notice or obligation. <br />OPW Threaded Riser Adaptor (Face Seal Adaptor) (FSA400) <br />An OPW FSA -400 Threaded Riser Face Seal Adaptor is required to provide a flat, true sealing surface on <br />threaded pipes where a gasket seal exists per EVR requirements. The FSA -400 is installed on the fill pipe riser <br />below the spill container to provide a true sealing surface for the drop tube flange on the 61 SO-40OC-EVR <br />overfill prevention valves. The FSA -400 is also required on tank gauging risers and optional on vapor risers <br />and rotatable adaptors. <br />Table of Contents: <br />1. Features <br />2. Ordering Specifications <br />3. Additional Resources <br />