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IMPORTANT: OPW products should be used in compliance with applicable federal, <br />state, provincial, and local laws and regulations. Product selection should be based on <br />physical specifications and limitations and compatibility with the environment and <br />materials to be handled. OPW MAKES NO WARRANTY OF FITNESS FOR A <br />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 <br />make changes at any time in prices, materials, specifications and models and to <br />discontinue models without notice or obligation. <br />C30 P W* <br />. � �.. <br />OPW Threaded Riser Adaptor (Face Seal Adaptor) (FSA -400) <br />An OPW FSA -400 Threaded Riser Face Seal Adaptor is required to provide a flat, true <br />sealing surface on threaded pipes where a gasket seal exists per EVR requirements. The <br />FSA -400 is installed on the fill pipe riser below the spill container to provide a true <br />sealing surface for the drop tube flange on the 61 SO-40OC-EVR overfill prevention <br />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 />1�O <br />