Plug Valve Manufacturer in USA

Valvesonly is a leading Plug Valve Manufacturer in USA. A plug valve is a type of industrial valve designed for controlling the flow of fluids in a pipeline. It is characterized by a cylindrical or tapered plug with a through-hole, known as the port that can be rotated within the valve body to either allow or block the flow of the fluid. Plug valves are commonly used in various industries such as oil and gas, petrochemical, water treatment, and power generation due to their simple design and reliable performance.

In the open position, the plug aligns with the ports in the valve body, allowing the fluid to flow through the valve with minimal obstruction. The rotation of the plug is controlled by the stem, which is manipulated by the actuator. To stop the flow, the plug is rotated to a position where it blocks the ports completely, preventing the passage of fluid. This is achieved by turning the stem, which is connected to the plug. Plug valves can also be positioned partially open or closed to regulate the flow of fluid. The degree of opening or closing is controlled by adjusting the rotation of the plug using the actuator.

The appearance of a plug valve can vary based on its size, design, and the materials used in its construction. However, some common features include a cylindrical or tapered body with inlet and outlet ports, a stem extending from the top, and an actuator (manual lever, gear, or motor) attached to the stem. The material of construction depends on the type of fluid and the environmental conditions in which the valve will operate, with options ranging from carbon steel to stainless steel and other alloys. The size of plug valves can range from small sizes suitable for residential applications to large industrial valves used in heavy-duty processes.


• Body

• Plug

• Ports

• Stem

• Actuator

• Bonnet

• Packing

• Gland

• Backseat

• Body Bolts and Nuts

What are the advantages of a plug valve?

• Plug valves have a relatively simple design, consisting of few components, which makes them easy to manufacture, install, and maintain. Their simplicity contributes to their reliability and longevity.

• They can be opened or closed rapidly, making them suitable for applications where swift isolation or regulation of fluid flow is required. This quick operation can be crucial in emergency shutdown situations.

• Due to their uncomplicated design and fewer moving parts, plug valves generally require less maintenance compared to more complex valve types. This results in lower maintenance costs and reduced downtime for industrial processes.

• These valves are often designed to allow flow in either direction, offering flexibility in installation and operation. This characteristic is advantageous in applications where the direction of fluid flow may change.

• They can handle a wide range of fluids, including corrosive and abrasive materials. The choice of materials for the plug and valve body allows customization to suit specific applications, making them versatile in various industries.

• These valves provide excellent sealing capabilities, ensuring a tight shut-off when in the closed position. This feature is particularly valuable in applications where leakage prevention is critical, such as in chemical processing or hazardous fluid handling.

• They are often more compact than other valve types with similar flow control capabilities. This makes them suitable for applications with limited space or where a more streamlined piping system is desirable.

• The simplicity of the design, ease of manufacturing, and low maintenance requirements contribute to the cost-effectiveness of plug valves. They are often a more economical choice for certain applications compared to more complex valve types.

• Plug valves are capable of handling high-pressure and high-temperature applications, making them suitable for use in challenging industrial environments such as oil and gas processing.

Types of plug valve:

• Lubricated Plug Valve

• Non-lubricated Plug Valve

• Jacketed Plug Valve

• Twin Seal Plug valve

• Lift Plug valve

• Orbit Plug valve

• Eccentric Plug valve

• Expanding Plug Valve


• Oil and Gas

• Petrochemical

• Chemical

• Water Treatment

• Power Generation

• Pulp and Paper

• Mining

• Marine

• Aerospace

• Textile

• Municipal Water and Wastewater

• Construction

• Automotive

• Environmental Engineering

• Fire Protection Systems


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

• Class: 150-2500; PN 10 – PN 450

• Size: 1/2”- 48”.

• Operations: Lever, electric actuated, pneumatic actuated, gear 

• Ends: Flanged, butt weld, socket weld, threaded

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