Flat welding flange is a connecting device between two large diameter pipelines, usually fastened by two flange gaskets with several bolts. Flat welding flange is a kind of cast steel flanges in common use. Low carbon steels are characterized by good plasticity and low strength, but, if added with appropriate...
Flanges are disc-shaped parts and are usually used in pairs. As a common application in pipeline engineering, flanges are mainly used for pipeline connection. Two pipelines to be connected are installed with two flanges respectively. Both flanges are tightly fastened with bolts and sealing joints....
Welding neck flanges are connected to pipelines by welding grooves on necks with pipes. The welding property and corrosion resistance of WN flanges are relatively better than slip on flanges. For a welding neck flange, it has to be welded from both sides. Welding neck flanges are generally used for...
Large flanges develop variously useful values in application, which have kinds of effects and purposes. The techniques of process and production vary due to its different materials. Therefore, certain procedures and methods should be applied when using and processing large flanges. The...
As a sort of pipe fitting, the weld neck flange refers to a flange with a neck and a cylinder-shaped tube to make the transition. These kinds of flanges are connected with pipelines through welding method. Weld neck flanges do not readily transform. They have superior airtightness and are...
Flanges applied connections are the most essential and common methods to connect various vessels and industrial pipelines. To meet the requirements of production process or be convenient for manufacture, transportation, installment and inspections, vessels and pipelines are usually connected by removable...
The universal application of stainless steel flanges results in short supply of these products. It may be a good news for manufacturers. Nevertheless, quality can never be ignored. Manufacturers should pay special attentions to the following issues so that stainless steel flanges can play their roles...
Flanges are usually applied to the connection among pipelines, facilities, valves and pipe fittings. The casting of flange was originally proposed by Erchardt in 1809. However, it wasn’t adopted until the early 20th century. After that, flanges were gradually produced and applied into various...
Large flanges refer to products that sizes go beyond national conventional standards on flanges. Sizes of theses flanges often exceed DN2000. They are all welded products without any screw. Carbon steel is the most common used materials for large flanges. In pipeline projects, large flanges can be used...