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What are the common flanges?

Aug 10,2023

Common flanges are essential components in piping systems, used to connect pipes, valves, pumps, and other equipment. They come in various types, each with its own specific features and applications.

One commonly used flange is the slip-on flange. As the name suggests, it slips over the end of the pipe and is then welded in place. It is easy to install and provides a strong connection. Slip-on flanges are suitable for low-pressure applications and are commonly used in water pipelines and other non-critical systems.

Another common type is the weld neck flange. This flange has a long tapered hub that ensures a smooth transition from the pipe to the flange. The neck also provides reinforcement to the flange, making it suitable for high-pressure and high-temperature applications. Weld neck flanges are commonly used in industries such as oil and gas, chemical, and petrochemical.

Threaded flanges are another common type, which have internal threads that allow them to be screwed onto the pipe. They are used in low-pressure applications where welding is not feasible or desired. Threaded flanges are commonly found in plumbing systems, fire protection systems, and small-bore piping.

Lap joint flanges are unique in that they are not welded directly onto the pipe. Instead, they are used in conjunction with a stub end, which is welded to the pipe and then connected to the flange using bolts. Lap joint flanges are useful in applications where frequent dismantling is required, such as in pump connections or in systems with limited space.

These are just a few examples of the common flanges used in various industries. Each type of flange has its own advantages and limitations, and it is essential to choose the right one based on the specific requirements of the piping system. Proper selection and installation of flanges are crucial to ensure a safe and efficient operation of the piping system.

What is the flange used for?

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