Flange connection is an important connection method for pipeline construction.
Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate. Flange gaskets are added between the two flange plates, and bolts are used to fasten them together to complete the connection.
Some pipe fittings and equipment have their own flanges, which also belong to flange connection. The flange is divided into threaded connection (screw connection) flange and welding flange. The low-pressure small diameter has a threaded flange, and the high-pressure and low-pressure large diameter use welded flanges. The thickness of the flange plate and the diameter and number of connecting bolts are different under different pressures.
According to the different pressure levels, the flange gasket also has different materials, from low-pressure asbestos gasket, high-pressure asbestos gasket to metal gasket.
The flange connection is convenient to use and can withstand large pressure.
Flange connection is widely used in industrial pipeline. In the family, the pipe diameter is small, and it is low-pressure, so the flange connection is invisible. If in a boiler room or production site, there are flange connected pipes and equipment everywhere. Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate. Flange gaskets are added between the two flange plates, and bolts are used to fasten them together to complete the connection. Some pipe fittings and equipment have their own flanges, which also belong to flange connection.
Pay attention to ensure that all bolts are tightened the same when connecting, especially when bolts are tightened.