African valve is the best Plug valve supplier in Tunisia. We also supply valves to South Africa, Kenya, Algeria, Ghana, Tanzania, Sudan and Ethiopia. A plug valve is a type of quarter-turn valve that uses a cylindrical or tapered plug to control the flow of fluid through a pipe or pipeline. The plug, which can be made of various materials such as metal or elastomer, has a hole or passage through its center. By rotating the plug within the valve body, the passage can be aligned with the pipe to allow fluid to flow or closed off to stop the flow.

Plug valves are commonly used in applications where on/off or isolation of fluid flow is required. They are known for their simple design and reliable operation. When the plug is fully open, it provides a straight-through passage with minimum resistance to flow, resulting in low pressure drop. However, due to the nature of their design, plug valves may not be suitable for throttling or regulating flow as they can cause turbulence and wear if operated at partially open positions. African valve is a well known Plug valve supplier in Tunisia


Types of plug valve

Lubricated plug valve
Non-lubricated plug valve
Eccentric plug valve
Expanding plug valve
Jacketed Plug valve
Twin Seal Plug valve
Lift Plug valve
Orbit Plug valve

Advantages of Plug Valves:

Simplified Design and Reliability: Plug valves are known for their simple construction, with fewer moving parts compared to other valve types. This simplicity translates into improved reliability, reduced maintenance requirements, and extended service life. The streamlined design also facilitates easy installation and operational convenience.
Rapid Flow Control: Plug valves offer quick on/off operation with a quarter-turn rotation. This swift action is particularly beneficial in applications that demand rapid flow control or emergency shut-off. Industries such as oil and gas rely on plug valves for efficient response to critical situations.
Effective Shut-Off Performance: When fully closed, plug valves provide excellent sealing capabilities, ensuring tight shut-off and preventing leakage. This feature is crucial in applications where fluid containment is paramount, such as water treatment plants and chemical processing facilities. The reliable shut-off also contributes to environmental safety and regulatory compliance.
Versatile Applications: Plug valves find applications across a wide range of industries and fluid handling processes. They are commonly utilized in oil and gas pipelines for isolation purposes, as well as in loading/unloading operations and tank storage. The ability to handle corrosive or abrasive fluids makes plug valves suitable for challenging environments, including petrochemical plants and wastewater management systems.
Reduced Pressure Drop: Plug valves offer a straight-through passage when fully open, resulting in minimal pressure drop across the valve. This feature ensures efficient fluid transport, reduces energy loss, and optimizes overall system performance. It is particularly advantageous in high-flow applications where maintaining adequate pressure is critical.


Applications of Plug Valves:

Oil and Gas Industry: Plug valves are extensively employed in upstream, midstream, and downstream operations, including pipeline transportation, refining processes, and storage facilities. They are used for isolation, diversion, and flow control applications, ensuring safe and efficient operation.
Water and Wastewater Treatment: Plug valves play a crucial role in water and wastewater treatment plants, where precise flow control, isolation, and shut-off capabilities are necessary. They are employed in processes such as filtration, disinfection, sludge handling, and chemical dosing.
Petrochemical and Chemical Processing: The corrosive and abrasive nature of fluids in petrochemical and chemical plants necessitates robust valve solutions. Plug valves, with their ability to handle challenging media, find application in processes such as acid handling, solvent recovery, and polymer production.
Power Generation: Power plants rely on plug valves for boiler feedwater control, steam handling, and fuel supply systems. Their quick response and efficient shut-off performance contribute to the safe and reliable operation of power generation facilities.
Available Material:

Body material: Cast Carbon steel plug valve (WCC,WCB, WC6), Stainless Steel plug valve [SS316, SS304, SS316L, SS904L, CF8, CF8M, F31L, F91], DUPLEX STEEL and Super duplex Steel plug valve (F51,F53,F55) , Cast iron, Ductile Iron.

Class: 150-2500; PN 10 – PN 450

Size: DN15 to DN1200

Operations: Lever actuated plug valve, electric actuated plug valve, pneumatic actuated plug valve, gear actuated plug valve

Ends: Flanged, butt weld, socket weld, threaded

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https://www.africanvalve.com/product-category/plug-valve/