Plug Valves

It is believed that the first valves utilized by humans were Plug Valves, known for their simplicity, rapid opening and closing mechanisms, and minimal fluid resistance. Sedelon® specializes in manufacturing Plug Valves according to API standards, which we refer to as API Plug Valves. Additionally, based on various design specifications, Sedelon® also offers DIN Plug Valves.
Plug Valves are predominantly constructed from metals, including Forged Steel, Stainless Steel, Alloy, Bronze, Cast Steel, and Carbon Steel Plug Valves, among others. Ceramic Plug Valves, a type of non-metal valve, boast a stable and durable construction that is resistant to wear. Furthermore, there are special materials used in some Plug Valves, such as Special Alloy, Special Steel, and Hastelloy Plug Valves. For media that is highly corrosive, Duplex Stainless Steel or Super Stainless Steel Plug Valves are typically chosen to address these challenges, as they perform well in corrosive environments.
The most basic and widespread type of Plug valve is a 2-port valve that can be positioned either open to permit flow or shut (closed) to halt flow. Additionally, Plug valves can feature more than two ports, such as the 3-Way Plug valve with three ports.
Based on the method of connection, Plug valves can be categorized as Screwed, Flanged, and Welded. Within the welded category, there are further distinctions: Butt Weld and Socket Weld Plug Valves. Depending on the drive mechanism, Plug valves can be operated by a Gear or a Hand Wheel. When equipped with actuators, these valves can be transformed into Electric Motor, Pneumatic Actuator, or Hydraulic Actuator Plug Valves. Typically, larger Plug valves are operated by a gear.
In various scenarios, appropriate Plug valves can be selected to meet specific needs. For high-temperature applications, High Temperature Plug valves are suitable. Furthermore, Jacket Plug Valves are utilized to minimize temperature loss in the line fluid, with the high-temperature PTFE sleeve capable of enduring temperatures up to 270 ℃. High Nickel Alloy Plug valves are another option for high-temperature conditions. Jacket Plug valves come in two types: Partial Jacket and Fully Jacket, with the latter offering superior insulation. Lubricated Taper Plug valves are versatile and suitable for nearly all media, providing reliable shut-off performance even under harsh operating conditions. Brass Plug valves, featuring a slightly conical taper, are commonly used as simple shut-off valves in residential natural gas lines.
In today's world, environmental protection is a top priority, and Sedelon takes this into account in our products. Low emission and Low leakage Plug valves are designed to effectively prevent medium leakage and emissions, benefiting the environment. With the Fugitive Emission Test Certificate ISO 15848-1:2006, Sedelon manufactures fugitive emission Plug valves as part of our commitment to environmental protection.