Which code is specifically for piping systems used in industrial refrigeration applications?

The code specifically for piping systems used in industrial refrigeration applications is B31.5. This code is part of the ASME (American Society of Mechanical Engineers) B31 Code for Pressure Piping series and focuses on the design, materials, fabrication, testing, and inspection for piping systems that handle refrigerants, liquefied gases, and other fluids at various temperatures and pressures.

B31.5 outlines specific requirements and guidelines that are unique to refrigeration applications, addressing aspects such as thermal expansion, insulation, and materials suitable for low-temperature operations. This makes it crucial for ensuring safety and efficiency in refrigeration systems across industries.

The other codes, while important for different applications and types of piping systems, do not cater specifically to industrial refrigeration. B31.3 pertains to process piping, B31.1 focuses on power piping, and B31.9 deals with building services piping; each has its own set of standards tailored to the unique needs of those respective areas.