Control Valve Trim

The Inner Workings of Flow Control

Control Valve Trim consists of the internal and external components within a control valve that influence its flow capacity and operational characteristics. These components include the valve seat, plug, stem, and cages, which work together to control the fluid flow through the valve. The trim determines the valve’s performance in terms of flow regulation, pressure drop, and response to control signals. Proper selection and maintenance of valve trim are essential for ensuring efficient and reliable operation in waterworks systems.

Applications:

• Waterworks: Used to configure control valves for precise flow and pressure management in water distribution systems.

Key Components:

• Valve Seat: Provides a sealing surface for the valve plug.
  
• Plug: Regulates the flow by moving into or out of the seat.
  
• Stem: Connects the actuator to the plug, transmitting control signals.
  
• Cages: Guide the plug and affect the flow characteristics.