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Plug Valves

Plug valves, characterized by their simple and robust design, utilize a cylindrical or conically tapered plug with a bored passage to control the flow of fluids. The rotation of the plug, which aligns the bored passage with the flow path, allows for easy on-off operation and effective regulation of fluid flow.

Different configurations such as 3-way 2-port, 3-way 3-port, and 4-way plug valves enhance their versatility for various flow patterns, thereby increasing their utility across diverse applications.

The design of plug valves offers superior flow efficiency, making them particularly suitable for applications where flow control and minimal fluid resistance are critical. The plug’s full-bore design enables maximum flow capacity, while the 90-degree rotation offers swift and easy operation.

Due to the direct contact between the plug and the valve body, plug valves often require more frequent lubrication to minimize friction and wear. However, this aspect also contributes to their strength, allowing them to handle slurries or other abrasive substances effectively.

Although plug valves may not provide as tight a seal as some other valve types, such as ball valves, they are often used in applications where slight leakage is tolerable. The ease of operation, combined with lower costs, makes plug valves an attractive choice for various applications, particularly in lower pressure and temperature scenarios.

In terms of maintenance, plug valves’ simple design allows for easy servicing, and the modular construction of many plug valves enables the replacement of worn-out components, further extending the valve’s service life.

 

Application Features:

 

  • Available in different configurations such as 3-way 2-port, 3-way 3-port, and 4-way, enabling a range of flow patterns.
  • Full bore design allows for maximum flow efficiency.
  • 90-degree rotation offers swift on-off operation.
  • Capable of handling slurries and other abrasive substances.
  • Tolerance of slight leakage makes it suitable for specific applications.
  • Frequent lubrication requirements due to direct plug-body contact.
  • Ease of maintenance due to simple and modular design.
  • Lower costs compared to some other valve types.
  • Robust for handling lower pressure and temperature scenarios.
  • Flexible applications due to availability in a range of sizes and materials.
About Us

Karma Instrumentation & Control is a specialist supplier of process control and automation equipment and SI systems, as well as a manufacturer and designer of process and electrical control panels.

Contact Us

• Address: Block A, Unit 3D, Wild Fig Business Park, 1494 Cranberry Street, Honeydew, 2170

• Email: info@karmainstrumentation.co.za

• Call us: 011 794 2859

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