What are the types of flanges?

What are the types of flanges?

Flanges are important components used to connect pipes, valves, equipment, and other devices. They typically consist of two flange discs, bolts, gaskets, and other components. Depending on different standards and requirements, flanges can be classified into multiple types. Here are some common types of flanges:

Slip-On Flanges: Also known as flat welding flanges, these are one of the most commonly used types of flanges for connecting pipes and valves. They consist of flange discs, bolts, gaskets, and other components.

Weld Neck Flanges: Also known as welding flanges, these are generally used on high-pressure, high-temperature, or corrosive pipelines where welding is required to join the flange faces to the pipeline or valve.

Threaded Flanges: Generally used on low-pressure pipelines, these flanges are fixed onto the pipeline or valve by threading.

Forged Flanges: These flanges are made of high-strength forged materials and are generally used in high-pressure, high-temperature, or heavy-load pipeline systems.

Socket Weld Flanges: These are used when there is a change in pipe size or when connecting pipes and elbows. The flange disc is inserted into the pipe and welded to complete the connection.

Lap Joint Flanges: Usually used to connect pipes and valves of different types, these flanges are particularly suitable for the transport of media such as steam, gas, and oil.

Blind Flanges: These flanges are used to close the end of a pipe, valve, or vessel and are also used to test the flow of fluid in a pipeline.

These are some common types of flanges, and different types of flanges have different applications in different situations.”