Iiar Ammonia Refrigeration Piping Handbook Pdf Jun 2026
Often called the definitive guide for the industry, the is a comprehensive publication providing all necessary information for correctly designing, locating, and sizing piping and accessories for ammonia systems. The publication was first introduced at the Refrigerating Engineers and Technicians Association’s (RETA’s) annual conference, where it was heralded as one of the most exciting new publications in the refrigeration industry in years.
Ammonia is highly corrosive to certain metals, particularly copper and brass. The handbook specifies approved materials that can withstand the chemical properties of ammonia and the extreme temperature swings of industrial refrigeration.
. It serves as a definitive guide for the design and installation of piping in modern industrial ammonia refrigeration systems. Core Content and Technical Focus
Ammonia piping systems frequently carry a mixture of liquid and vapor. Iiar Ammonia Refrigeration Piping Handbook Pdf
By applying the principles found within the IIAR Ammonia Refrigeration Piping Handbook, industrial facilities ensure:
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Note: It is recommended to search for or distribute free, unauthorized PDF copies of the handbook, as this violates copyright agreements and may mean the user misses out on critical updates. Often called the definitive guide for the industry,
First released in 2000 after seven years of collaborative effort, the handbook was immediately hailed as "The New Refrigeration Piping 'Bible'" by industry media. It contains nearly 400 pages, 190+ diagrams and drawings, 50+ charts and tables, and 30+ formulas covering pressure drop, temperature drop, system capacity, and more. The handbook is designed to be a tutorial and reference book that represents the collective efforts of the most knowledgeable specialists in the ammonia refrigeration industry. It was co-authored by and Lane Bonebrake , who compiled knowledge from refrigeration contractors, ASHRAE handbooks, a long-used Vilter piping manual, and other key sources to create a document more comprehensive than any that had existed before.
must be pitched toward vessels or drain points.
IIAR offers a self-paced, online industrial refrigeration course designed to teach the fundamentals of ammonia pipe sizing using pressure drop principles, velocity, mass flow, and practical application examples from Chapter 1 of the Ammonia Piping Handbook. The handbook specifies approved materials that can withstand
The IIAR Ammonia Refrigeration Piping Handbook serves as the foundation for safe, reliable, and energy-efficient industrial refrigeration. By adhering to its strict guidelines on material selection, pipe sizing, thermal stress management, and safety relief systems, engineers and operators can leverage the superior thermodynamic properties of ammonia while maintaining standard-setting safety profiles. If you are looking to implement these guidelines,
Standards for maintaining proper ammonia vapor and liquid velocities to prevent erosion and noise.
Guidelines on vapor and liquid velocities to prevent erosion, hammer, and excessive noise.
: Relief valves must vent to a safe location outside the building, typically through a dedicated atmospheric vent line or into an emergency water diffusion tank. 5. Inspection, Testing, and Maintenance
Typically ASTM A53 Grade B or ASTM A106 Grade B for standard temperature ranges. For lower temperatures (below -20°F / -29°C), impact-tested carbon steel like ASTM A333 Grade 6 is required to prevent brittle fracture.
