The ASME B31  Code for Pressure  Piping consists
of a number of Sections, each an American  National
Standard, which collectively constitute the Code. Herein-
after in this Introduction and in  the text of this Code
Section B31.5, when the word “Code” is used without
identifying a specific Code Section, it means this Code
Section.

The Code sets forth engineering requirements deemed
necessary for safe design and construction of refrigera-
tion,  heat  transfer  components, and secondary coolant
piping systems. While safety is the basic consideration
of this  Code, this  factor  alone will  not necessarily
govern the final specifications for  any pressure piping
system. The designer is cautioned that the Code is not
a design handbook. The Code does not do away  with
the  need for the  designer or competent engineering
judgment.

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