Construction:
- The plug valve consists of a one-piece plug and stem that rotates within the valve body.
- The plug is slightly conical and has a through hole that allows fluid flow.
Operation:
- The plug is rotated 90 degrees between the open and closed positions.
- In the open position, the hole in the plug aligns with the flow path.
- In the closed position, the plug blocks the passage.
Here are concise examples of plug valve applications in industry:
Oil and Gas: Used for flow control and isolation in pipelines, facilitating maintenance and directing product flow.
Example: Controlling crude oil flow in refinery pipelines.
Chemical Processing: Employed for metering and shut-off of aggressive chemicals in chemical plants.
Example: Regulating acid flow in chemical processing lines.
Water and Wastewater Treatment: Utilized in sludge handling and water distribution systems for precise flow control.
Example: Regulating sludge flow in wastewater treatment plants.
Power Generation: Applied in cooling water and steam systems for efficient flow control. Example: Controlling cooling water flow in power plant condensers.
Mining and Minerals Processing: Used in slurry transport and tailings management for reliable flow control of abrasive materials.
Example: Transporting ore slurries in mining operations.
Plug valves play essential roles in these industries, providing reliable flow control, isolation, and handling of fluids and slurries.
