Plug Valves

A Plug Valve is a rotary valve that turns a quarter of the way to control fluid flow. It uses a cylindrical or conical plug with a hole through it. In the open position, the hole aligns with the valve ports, letting fluid flow. To close the valve, the plug is rotated to block the flow path.
 

Products List

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Explore our advanced sleeved plug valve plant, meticulously crafted from super austenitic stainless steel UB6 or SS 904L, ensuring exceptional durability and corrosion resistance. Compliant with DIN 1.4539 and API 599 standards, this valve boasts a 6-inch (DN150) size, Class 150 LB (PN20) rating, and features a PTFE seat for reliable sealing performance. The inclusion of a lever mechanism allows for easy operation, while the RF (raised face) design ensures a secure and leak-free connection in your piping systems.

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Explore our high-quality super austenitic plug valve, meticulously engineered from premium UB6 or SS 904L materials to meet API 599 standards. Designed with precision, this valve boasts a 3-inch size and is expertly rated for Class 150 LB, ensuring robust performance in demanding applications. With its PTFE seat ensuring secure sealing and RF ends facilitating straightforward installation, our plug valve stands as a testament to durability and reliability.

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Our PTFE sleeved plug valve, compliant with ASTM A890 4A standards and designed according to API 599 specifications, comes in a 2-inch size with a Class 150 LB rating. It features a lever operation mechanism and RF end connections, ensuring reliable performance and easy operation in various industrial applications.

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Introducing our Lubricated Tapered Plug Valve, crafted from ASTM A216 WCB material to meet API 599 standards. Sized at 26 inches and rated Class 600 LB, this valve ensures robust performance in critical applications. With a metal seat and RF ends, it guarantees secure sealing and connection. Trust in our Lubricated Tapered Plug Valve for reliable flow control in demanding environments.

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Introducing our CD4MCu Sleeved Plug Valve, crafted to meet ASTM A890 1A and UNS J93370 standards. Compliant with API 599, it features a PTFE seat for reliable sealing. With a size of 2 inches (DN50) and a pressure rating of Class 150 LB or PN20, it offers versatile performance. Operated by a lever and equipped with RF ends, it ensures secure flow control in various applications.

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Explore our premium PTFE sleeved plug valves meticulously engineered to deliver exceptional performance. Crafted to DIN 3202 and API 599 standards with UB6 specifications, these valves feature a robust construction using SS 904L (UNS N08904) material, also known as DIN 1.4539. With a diameter of DN200 (8 inches) and a pressure rating of PN16 (Class 150 LB), they ensure reliable operation under various conditions. Equipped with a worm gear actuator, these valves offer precise control and durability for your industrial applications.

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We provide high-quality pressure-balanced lubricated plug valves manufactured to ASTM A216 WCB standards and compliant with API 599 specifications. These valves, with a size of 4 inches (DN100) and pressure ratings of Class 600 LB and PN100, feature a full bore design and metal seat for reliable performance. Equipped with RF ends, they ensure secure sealing and efficient flow control in various industrial applications. Count on our pressure-balanced lubricated plug valves for their robust construction and dependable operation.

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Our Stainless Steel SS 904L Sleeved Plug Valve, manufactured to the highest standards, is designed for exceptional performance. Crafted from UNS N08904 material, also known as DIN 1.4539, this valve boasts a DN250 (10-inch) size, PN16 pressure rating, and conforms to both Class 150 LB and API 599 standards. With a PTFE seat, wormgear operation, and RF ends, this valve ensures reliable and efficient flow control in various applications.

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Our Chinese facility produces high-quality API 599 Sleeved Plug Valves. These valves, made from ASTM A351 CN7M, come in a 10-inch size suitable for Class 150 LB applications. Featuring a PTFE metal-seated design, they ensure effective sealing. With worm gear operation and RF ends, these valves are reliable for various industrial applications.

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Introducing our Big Diameter Inverted Lubricated Plug Valve, expertly crafted in our factory. This valve, with a substantial size of 30 inches and a Class 300 LB pressure rating, is constructed from WCB (Carbon Steel). Adhering to API 599, ASME B16.34, and DIN 3202 standards, it offers versatile options with sizes ranging from 1/2 to 24 inches and pressure ratings from 150 to 900 LB. The valve is available in various materials, including Carbon Steel, Stainless Steel, and Alloy Steel, ensuring suitability for diverse applications.




Basic Design of Plug Valve


The plug valve is a straightforward and effective valve design with key components contributing to its functionality. The basic design of a plug valve includes:
 
Body: The outer casing providing structural support and housing for internal components. It serves as a connection point within the piping system.
 
Plug (Tapered or Cylindrical): The central element controlling fluid or gas flow. It can have a tapered or cylindrical shape, influencing the flow characteristics.
 
Ports: Openings in the valve body that permit fluid or gas flow when the plug is lifted or rotated. The configuration of ports determines the valve's functionality.
 
Stem: The rod or shaft connected to the plug, facilitating its movement. The stem is crucial for opening and closing the valve.
 
Handle or Actuator: The operating mechanism for the valve. It can be a manual handle for simple control or an automated actuator for precise and remote operation.
 
Seals: Components like O-rings or packing ensuring a tight seal between the plug and the valve body. Seals prevent leakage and maintain the integrity of the system.
 
Lubrication System: In some plug valves, a lubrication system is integrated to minimize friction and promote smooth operation. Lubrication enhances the longevity and efficiency of the valve.
 

Common Types of Plug Valves


Plug valves come in various types, each designed to meet specific application requirements. Here are some common types of plug valves:
 
Lubricated Plug Valve: Utilizes a lubricant, often injected under pressure, to minimize friction between the plug and the valve body, ensuring smooth and efficient operation.
 
Non-Lubricated Plug Valve: Engineered to function without external lubrication, making them suitable for applications where the risk of lubricant contamination is a concern.
 
Eccentric Plug Valve: In an eccentric plug valve, the plug is offset from the centerline of the pipe bore. This design reduces wear and provides reliable sealing, making it ideal for high-performance applications.
 
Elastomer Sleeved Plug Valve: Features a flexible elastomer sleeve surrounding the plug, offering excellent sealing properties and corrosion resistance. Commonly used in applications involving abrasive or corrosive fluids.
 

Why Choosing Plug Valves?


Plug valves offer several advantages that make them suitable for various applications across industries. Here are some key advantages of plug valves:
 
Quick Operation: Plug valves provide rapid and positive shut-off, making them well-suited for applications requiring swift isolation.
 
Simple Design: With a relatively straightforward design and fewer components, plug valves facilitate easy maintenance and repair.
 
Versatility: Capable of handling a diverse range of fluids, including liquids, gases, and slurries, showcasing their adaptability to various applications.
 
Durable Construction: Plug valves are often constructed to be robust, enabling them to withstand high-pressure and high-temperature conditions effectively. This durability contributes to their reliability in challenging environments.
 

The Plug Valve Applications


Plug valves are versatile and find applications in a variety of industries due to their ability to provide positive shut-off and ease of operation. Some common applications of plug valves include:
 
Chemical Industry: Plug valves are frequently utilized in the chemical industry, particularly in applications dealing with corrosive fluids. Their positive shut-off capability is valuable in controlling the flow of chemicals.
 
Oil and Gas Industry: In the oil and gas sector, plug valves play a crucial role in the transportation of crude oil and natural gas. Their versatility and ability to provide a positive shut-off contribute to their effectiveness in various applications within this industry.
 
Water Treatment: Water treatment plants commonly incorporate plug valves for controlling the flow of water and various chemicals. The ease of operation and positive shut-off make them suitable for regulating fluid movement in water treatment processes.
 
Petrochemical Industry: Plug valves are employed in petrochemical processes where precise control of fluid flow is critical. Their versatility and reliability make them valuable components in various petrochemical applications.