An ASTM A351 CF8 Control Valve is a type of control valve made from CF8 material, which is the equivalent investment cast alloy of AISI 304 stainless steel. This material belongs to the austenitic stainless steel category, offering good strength and ductility. The CF8 alloy, also known as 18/8 stainless steel, contains approximately 18% chromium and 8% nickel by weight.

These control valves are used to regulate fluid flow by adjusting the size of the flow passage based on signals from a controller. This enables precise control over flow rate and the regulation of process parameters such as pressure, temperature, and liquid level. The use of CF8 material ensures durability and reliability in various industrial applications.