Cast Stainless Check Valves
Warren Valve's cast stainless & alloy check valve include 1/2”-36”, ANSI Pressure class 150# - 300# - 600# - 900# - 1500# - 2500#. Materials of construction include stainless steel, alloy 20, and other exotic materials. Options include NACE compliance, and Teflon or Graphite gasket.
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Emerging Markets
In the constant circulation of hydronic cooling, corrosion can damage traditional HVAC valve materials. The Warren 223 Threaded Check Valve is engineered to outperform traditional brass, bronze, or carbon steel in chilled water and glycol systems.
Cast from high-grade CF8M (316 Stainless Steel) and rated for 200 PSI WOG, the Series 223 provides a robust, rust-resistant barrier against backflow. It safeguards sensitive pumps and chillers without the "over-spec" cost of high-pressure process valves—delivering the perfect balance of industrial durability and HVAC efficiency.