Single Seated Lined Control Valve

ALIS Valves offers Single Seated Lined Control Valves for industrial applications requiring precise flow regulation and protection against corrosive process media. These valves combine a single-seated control mechanism with a chemically resistant internal lining, such as PTFE or PFA, depending on the specified design. The single-seat arrangement uses a movable valve plug to regulate the flow passage, supporting controlled adjustment of process media. The lining provides a protective barrier between the fluid and the valve body, helping reduce corrosion and improve compatibility with selected aggressive chemicals. Depending on the valve configuration, actuator type and operating conditions, these valves can be equipped for manual, pneumatic or motorized operation to meet different process control requirements.

Single Seated Lined Control Valves are suitable for chemical processing plants, pharmaceutical facilities, acid and alkali handling systems, water treatment installations and other industries where corrosive fluids require controlled flow management. They can be specified for compatible chemical solutions and other process media within the lining’s temperature, pressure and chemical resistance limits. Important selection factors include chemical compatibility, operating pressure, temperature range, flow coefficient (Cv or Kv), differential pressure, valve size, lining material, seat and plug design, sealing arrangement and actuator requirements. The required leakage class and flow characteristics should also be considered to achieve the desired control performance. Selecting the appropriate lining and valve configuration helps support accurate flow regulation, corrosion resistance and reliable service under the intended operating conditions.