#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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