A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.
TYPES OF FLANGES
The most used flange types in Petro and chemical industry are:
Welding Neck Flange
Slip On Flange
Socket Weld Flange
Lap Joint Flange
All types except the Lap Joint flange are provided with a raised flange face.
Except the most used standard flanges, there are still a number of special flanges such as:
Long Welding Neck Flanges
Weldoflange / Nipoflange