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&lt;/script&gt;</html><thumbnail_url>https://stvvalve.com/wp-content/uploads/2025/06/bs-1868-swing-check-valve-wcb-36-inch-cl300-rf-end.jpg</thumbnail_url><thumbnail_width>800</thumbnail_width><thumbnail_height>599</thumbnail_height><description>What is a flanged check valve?&#xA0; This is a check valve designed with flanges at the end of the ports. Flanged check valves are used to prevent reverse fluid flow in different applications. These valves operate automatically using the pressure difference principle in which they open when the inlet fluid pressure is high like when [&hellip;]</description></oembed>
