Stub end is a pipe fitting that facilitates the installation and removal of flanged connections in pipelines. Its main features are as follows: It consists of a short piece of pipe with one end flared to fit the flange surface. The other end is straight and passes into the lap joint flange. It does not require the flange to be welded and allows easy removal of the flange during maintenance or system change. It has started to be used in high pressure applications, not only in low pressure systems. There are different types such as A, B, C according to the design of the flange surface. It can be produced from various materials such as steel, stainless steel, alloy steel. When used with lap joint flanges, it provides alignment, thermal expansion and ease of maintenance compared to welded flanges.
1- Petroleum, chemical, power, gas, metallurgy, shipbuilding and construction industries.
2- Making flanged connections as an alternative to welded flanges.
3- To ensure easy removal and installation of flanges during maintenance and repair of pipelines.
4- In high pressure applications, not only in low pressure systems.
5 -When using reduction type stub ends to connect pipes of different diameters.
Stub ends, when used with lap joint flanges, provide alignment, thermal expansion and ease of maintenance compared to welded flanges. It can be produced from various materials such as steel, stainless steel, alloy steel.