Flange connections involve fixing two pipes, fittings, or equipment individually to flange disks, then adding a flange gasket and securing them together with bolts to complete the connection. Some fittings and equipment come with a built-in flange disk and are also considered flange connections. Flange connections are an important method for pipe construction. They are convenient to use and can withstand high pressure. In industrial pipelines and within homes, you might not see flange connections when the pipe diameter is small and the pressure is low. However, in boiler rooms or production sites, you will find flange connections on pipes and equipment everywhere.

The types of flange connections, categorized by their connection methods, include: flat welding flanges, socket welding flanges, blind flanges, threaded flanges, flange covers, lug socket welding flanges, flat socket welding flanges, ring groove flanges and flange covers, large diameter flat flanges, large diameter long-neck flanges, winged blind flanges, socket welding ring flanges, etc.