Introduction To Flanges

A flange (also known as a flange disc or rim) is a mechanical component used to connect shafts, pipe ends, or equipment inlets and outlets. Typically manufactured from metals such as carbon steel, stainless steel, or alloy steel, its primary purpose is to create a detachable, sealed connection between piping and equipment.
Product Function: The core functions of a flange are connection and sealing; by bolting two flanges together with a gasket clamped between them, a sealed assembly is formed to prevent fluid leakage. Flange connections are a vital method in pipeline construction, comprising a flange, a gasket, and bolts to create a detachable seal. Key advantages include ease of installation, the ability to withstand high pressure, and convenience for disassembly and maintenance.
Classification: Based on connection methods, flanges are categorized into types such as integral flanges, threaded flanges, slip-on (flat-welded) flanges, weld-neck (butt-welded) flanges, socket-weld flanges, lap-joint (loose-sleeve) flanges, and blind flanges. Additionally, different sealing face designs can be selected based on pressure ratings to suit a wide range of operating conditions, from low to high pressure.