En 13480 3 .pdf Added By Users 1 'LINK'
Click Here https://urlgoal.com/2ttSMq
What is EN 13480-3 and how to download it as a PDF file
EN 13480-3 is a European standard that specifies the design and calculation of industrial metallic piping systems, including supports, covered by EN 13480. It is part of a series of standards that cover different aspects of metallic industrial piping, such as materials, fabrication, inspection and testing. EN 13480-3 was published in 2017 and supersedes the previous version from 2012. It is also harmonized with the Pressure Equipment Directive (2014/68/EU) and has a mandate from the European Commission (M/071).
If you are looking for a PDF file of EN 13480-3, you may find it on some online platforms that offer free or paid access to standards documents. However, you should be aware that these platforms may not be authorized by the official standards organizations and may not provide the latest or correct version of the standard. Therefore, it is recommended that you obtain the PDF file from a reliable source, such as the national standards body of your country or the CEN-CENELEC Management Centre. You can also contact the technical committee CEN/TC 267 that is responsible for developing and maintaining EN 13480-3 and ask for more information.
EN 13480-3 is an important standard for anyone who is involved in the design, manufacture, installation or operation of metallic industrial piping systems. It provides guidance on how to ensure safe and efficient performance of these systems under various conditions and loads. It also covers topics such as stress analysis, pressure design, flexibility analysis, support design and calculation methods. By following EN 13480-3, you can comply with the legal requirements and best practices for metallic industrial piping in Europe.To continue the article, you may want to add some examples of how to apply EN 13480-3 to different types of metallic industrial piping systems. Here are some possible paragraphs:
Example 1: Straight pipe under internal pressure
One of the most common cases of metallic industrial piping is a straight pipe under internal pressure. To design and calculate such a pipe according to EN 13480-3, you need to know the following parameters: the nominal diameter (DN), the nominal wall thickness (e), the design pressure (Pd), the design temperature (Td), the material grade and the allowable stress (f). You also need to consider any additional loads or factors that may affect the pipe, such as weight, bending, thermal expansion, corrosion or fatigue.
The main criterion for a straight pipe under internal pressure is to ensure that the hoop stress (Ïh) does not exceed the allowable stress (f). The hoop stress is calculated by the formula:
Ïh = Pd Ã D / 2e
where D is the mean diameter of the pipe, which is equal to DN - e.
If the hoop stress is greater than the allowable stress, you need to increase the wall thickness or reduce the design pressure or temperature. You can also use a different material grade with a higher allowable stress.
Example 2: Pipe bend under external moment
Another common case of metallic industrial piping is a pipe bend under external moment. This can occur when the pipe is subjected to forces or displacements that cause bending or torsion. To design and calculate such a pipe bend according to EN 13480-3, you need to know the following parameters: the nominal diameter (DN), the nominal wall thickness (e), the bend radius (R), the bend angle (Î), the external moment (M), the design temperature (Td), the material grade and the allowable stress (f). You also need to consider any additional loads or factors that may affect the pipe bend, such as internal pressure, weight, thermal expansion, corrosion or fatigue.
The main criterion for a pipe bend under external moment is to ensure that the equivalent stress (Ïeq) does not exceed the allowable stress (f). The equivalent stress is calculated by combining the hoop stress (Ïh), the longitudinal stress (Ïl) and the bending stress (Ïb) according to von Mises theory. The hoop stress and the longitudinal stress are calculated by the formulas:
Ïh = Pd Ã D / 2e
Ïl = Pd Ã D / 4e
where Pd is the design pressure and D is the mean diameter of the pipe.
The bending stress is calculated by the formula:
Ïb = M Ã y / I
where M is the external moment, y is the distance from the neutral axis of the pipe cross-section and I is the second moment of area of the pipe cross-section.
If the equivalent stress is greater than the allowable stress, you need to increase the wall thickness or reduce the external moment or design temperature. You can also use a different material grade with a higher allowable stress or a larger bend radius with a smaller bend angle. 248dff8e21