Bolted Flange

Flange, also known as a flange disc or rim, is a component used for connecting shafts to each other or for joining pipe ends; it is also used on equipment进出口 for connecting two devices, such as a reducer flange. A flange connection or flange joint refers to a removable connection made up of a flange, a gasket, and bolts, which together form a combination sealing structure. Pipe flanges are the flanges used for piping in pipe systems; when used on equipment, they refer to the equipment's进出口 flanges. Flanges have holes and bolts are used to tightly secure the two flanges. Seals are placed between the flanges for sealing. Flanges come in threaded (screwed) connections,焊接 connections, and clamp connections. Flanges are always used in pairs; low-pressure pipelines can use threaded flanges, while those over four kilograms of pressure use焊接 connections. Two flange disks are joined with a sealing pad and then bolted together. Flanges of different pressures have different thicknesses and require different bolts. Pumps and valves, when connected to pipelines, have corresponding flange shapes for local connections, also known as flange connections. Any connection piece that uses bolts to connect two flat surfaces and is sealed is generally called a "flange," such as the connection of ventilation pipes. These types of components can be called "flange-type parts." However, such connections are only a part of a device, like the connection between a flange and a pump, so it's not appropriate to call the pump a "flange-type part." Smaller devices like valves can be referred to as "flange-type parts."