Flange connections involve securing two pipes, fittings, or equipment to separate flange discs first, then inserting a flange gasket between the discs and tightening them together with bolts to complete the connection. Some fittings and equipment come with a built-in flange disc, which also falls under flange connections. Flange connections are a crucial method in pipeline construction. They are convenient to use and can withstand high pressure. In industrial pipelines and residential settings, where pipe diameters are small and the pressure is low, flange connections are not visible. However, in boiler rooms or production sites, you'll find flange connections on pipes and equipment everywhere.

Types of flange connections based on connection method include: flat焊接flanges, welding neck flanges, slip-on flanges, socket weld flanges, threaded flanges, blind flanges, ring-type joint flanges, flat ring joint flanges, socket weld ring flanges, large diameter flat flanges, large diameter welding neck flanges, L-bend blind flanges, and socket weld ring flanges, etc.