A threaded flange, also called a screwed flange, is a type of flange with internal threads that allow it to be screwed onto pipes with matching external threads. Unlike welded flanges, threaded flanges do not require welding, making them suitable for applications where welding is difficult or not allowed. They provide a secure connection and are often used in low-pressure, low-temperature systems. Threaded flanges are commonly used in small-diameter piping systems and can be easily removed and reinstalled, making them ideal for maintenance-prone environments.

Threaded flanges are typically made from durable materials like stainless steel, carbon steel, or alloy steel. The choice of material depends on factors such as the medium in the piping system, temperature, and pressure requirements. Stainless steel is often preferred in corrosive environments, while carbon steel is popular in systems with lower pressure and temperature needs. Alloy steels, which can withstand more extreme conditions, are used in specialized applications where durability and longevity are essential.

Threaded flanges are commonly used in industries where welding is not feasible or allowed, such as in explosive atmospheres or highly flammable environments. They are widely used in plumbing, natural gas distribution, and oil production facilities, especially for smaller pipe sizes and temporary or frequently adjusted piping systems. Their design enables quick assembly and disassembly, making them suitable for environments that require frequent maintenance or modification.

Threaded flanges offer several benefits, including ease of installation, as they don’t require welding. This makes them ideal for quick, non-permanent connections and applications in flammable or explosive environments where welding may pose a risk. They also allow for easy disassembly, making them suitable for systems requiring frequent maintenance or modifications. Additionally, threaded flanges are available in a wide range of materials and sizes, allowing for versatility in various low-pressure applications.