Waukesha Cherry-Burrell 20-243 TEF-Flow Seat Ring

The Waukesha Cherry-Burrell 20-243 TEF-Flow Seat Ring is a sanitary valve sealing component for W60–W84 series valves (including W60, W61, W62, W63, W64, W65, K67, K68, K69, W80, W81, W82, W83, and W84). Made from Tef-Flow material, it provides a reliable stem-to-seat sealing surface that delivers leak-tight shutoff, product containment, and sanitary operation in hygienic processing environments. The 20-243 designation identifies the 3-inch valve size and this seat ring is a critical sealing element within Waukesha sanitary valve assemblies. It is widely used in food, dairy, beverage, pharmaceutical, and biotechnology processing facilities and is commonly installed in sanitary shutoff valves, divert valves, reverse shutoff valves, tank outlet valves, and process piping systems, including clean-in-place (CIP) applications. Installation occurs at the valve stem assembly to form the stem-to-seat interface, supporting long-term valve performance and ease of preventive maintenance or overhaul projects. Common replacements include the Waukesha 115350 Tef-Flow P Seat Ring, SPX FLOW 3" Seat Ring Assembly, and Alfa Laval sanitary valve seat rings.