High Temperature Ball Valves

Metal seated valves are designed for abrasive service or for operation in temperatures that prohibit the use of a resilient material. The seating action is provided by the metal-to-metal contact between the ball and the seat rings. Seating faces are hard-faced. The main feature of metal seated valves is the ability to withstand higher temperatures and more severe service conditions than regular soft seated valves. Metal seats can resist high temperatures up to 550°C, endure severe flashing, abrasive process fluid and hydraulic shock. They are also fit for high erosion/corrosion applications. Metal seats can be hardened with ultrasonic coating, chromium carbide, tungsten carbide.