PN6 Type 05

European elegant EN 1092-1 – concerning flanges for pipes – establishes the requirements for steel flanges primarily based absolutely on their nominal pressure (PN) and dimension (DN). Moreover, it defines the specific kinds of flanges and their sealing surfaces, tolerances, threading and labelling

Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate each, and between the two flanges, plus flange pads, bolts are fastened together to complete the connection. Some pipe fittings and equipment already have their own flanges, which are also flange connections. Flange connection is an important connection method for pipeline construction. The flange connection is easy to use and can withstand large pressures. In industrial pipes, in the home, the pipe diameter is small, and it is low pressure, and the flange connection is not visible. If you are in a boiler room or production site, there are flanged pipes and equipment everywhere. [1]

According to the connection method, the types of flange connections can be divided into: plate flat welding flange, flat welding flange with neck, butt welding flange with neck, socket welding flange, threaded flange, flange cover, loose sleeve flange with neck butt welding ring, loose flange of flat welding ring, ring groove surface flange and flange cover, large diameter flat flange, large diameter high neck flange, figure-eight blind plate, butt welding ring loose flange, etc