Iiar Ammonia Refrigeration Piping Handbook Pdf Link May 2026

For occasional reference, consider borrowing a licensed copy from a colleague or using the free resources from ASHRAE and your local OSHA consultation office.

– Provides minimum design pressure for ammonia piping (typically 250 psig or 300 psig for suction lines). Includes temperature derating factors. iiar ammonia refrigeration piping handbook pdf link

A: ASME B31.5 covers refrigeration piping in general (including R-134a and CO2). IIAR 2 is specific to ammonia and is more stringent regarding materials, venting, and emergency isolation. For occasional reference, consider borrowing a licensed copy