Friday, October 1, 2021

#Criteria for line for- Stress Critical Lines

 #Criteria for line  for- Stress Critical Lines

Lines which need to be analyze by stress engineer for design pressure, operational weight, earthquake , wind , vibration and steam/water hammer effect is critical lines.

There are different criteria for critical lines in which 2 inch and smaller are not considered, unless otherwise stated.

Criteria 1. Stress Critical Lines

Criteria 2. Equipment Critical Lines

Criteria 3. Support Critical Lines

Criteria 4 .Relief Critical Lines

Criteria 5. Categories M Fluid Service Lines



Criteria 1. Stress Critical Lines- These Lines are identified based on the temperature to which line is subjected Normal basis for temperature is maximum operating/design temperature. In absence of maximum operating temperature, Design temperature shall be considered. Operating temperature shall be considered only if client ask for. 











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