Long weld neck flange(LWN flange) is also call integral flange, it means a welding neck flange has a very long neck.[……]

Long weld neck flange(LWN flange) is also call integral flange, it means a welding neck flange has a very long neck.[……]
The large diameter flanges are used to connect or to block off two very large diameters sized pipes.[……]
The Weldoflange and Nipoflange is a combination of a Welding Neck flange and a supposedly Weldolet or Nipolet.[……]
An Expander Flange is a type of welding neck pipe flange used to increase pipe size at the flange connection (see sketch).[……]
An anchor flange is a device installed on a pipeline to combat axial movement.[……]
This flange is referred to as either threaded or screwed. It is used to connect other threaded components in low pressure, non-critical applications.[……]
Designed for use in changing diameters in a piping system. A reducing flange consists of a flange with one specified diameter having a bore of a different and smaller, diameter.[……]
Long Neck Welding flanges (abbr. LWN) are similar to a standard Welding Neck flange, but the “Neck” is considerably longer. [……]
Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. [……]
Spectacle Blind Flange also called as Figure-8 Blind flange.[……]