Different pressure flanges have different thicknesses and use different bolts

The parts that connect the pipe to the pipe are connected to the pipe end. There are holes in the flange, and the bolts tightly connect the two flanges. The flanges are sealed with gaskets. Flange is a disc-shaped part, common in pipeline engineering, flanges are used in pairs. In pipeline engineering, flanges are mainly used for connection of pipelines. At the end of the two pipes to be connected, a flange is installed respectively. For low-pressure pipes, wire flanges can be used, and welding flanges for pressures above 4 kg can be used. Add a gasket between the two flanges, and then tighten with bolts.

Pumps and valves are also made into corresponding flange shapes when they are connected to pipelines, and some parts of these equipments are also called flange connections. All the connecting parts that are bolted on the two planes at the periphery and closed at the same time are generally called "flanges". For example, the connection of ventilation pipes, this type of parts can be called "flange parts". Threaded flange is a kind of flange. The connection structure of the threaded flange is a combination, which is composed of a pair of flanges, a number of bolts, nuts and a gasket.