How Global Flange Standards Prevent Faulty Equipment

2015 July27

How Global Flange Standards Prevent Faulty Equipment

Pipe flanges mechanically connect equipment, pipe sections, and inline components to each other. During the dismantling process, flanges carry out the dismantling and joining of pipes without welding or cutting, thus reducing the chances of problems. However, flanges that do not meet specific guidelines pose a danger of opening up a breakable joint that may result in a pathway in the pipe where service liquid may easily leak.

Acceptable Global Flange Standards Include:

  • ASA/ANSI/ASME (USA)
  • JIS/KS (Japanese/Korean)
  • PN/DIN (European)
  • BS10 (British/Australian)

These are categorized pressure classes by different temperature and pressure ratings, depending on the material being used. When classifying piping pressure classes, the unique needs of the construction (EPC) contractor, engineering, procurement, and the owners of either a power generating station or a processing plant are put into consideration.

Pressure Classes and Guidelines of ANSI Flanges

As a result, the ANSI flanges pressure classes for ANSI/ASME raised-face flanges are 300, 150, (400 – unusual), 600, 900, 1500, and 2500. On the other hand, the classes for Flat-Face flanges and Ring-Joint include the 125, 250, and the Tongue & Groove.

Forged Components, Inc. (FCI) is a corporation that offers a range of standard connections that align with ASME B16.5 and ASME Section VIII Div. 1 guidelines for manufacturing. The company manufactures connections that are self-reinforced to fit ASME pressure vessels not to mention other custom-made products, wellhead products, and forgings alongside other components and standard connection types.

FCI strictly follows the ISO 9000, ASME, and API program guidelines as a quality control policy. The manufacturing plant is located in a 95,000 SQ/ ft. area, and it is equipped with 100% CNC machining.

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