Applicability of Class Location for Liquid Lines? What is the design factor used for Liquid Pipeline Operation?

Design factor specification for Liquid Pipelines are governed by ASME B31.4 Table 402.3.1(a)

Excerpts from B31.4:

Please note: Several ASTM standards limit to a maximum of 72% SMYS. Special permits can be granted for increase to 0.80 in US on site-specific basis. Consideration are given to reliability-based and risk-based approaches in special permits.