– The handbook uses NPS (Nominal Pipe Size) and Schedule 40/80. Do not substitute DIN or metric pipe without cross-reference.
– Some PDF links point to pre-2014 editions. Critical changes in recent updates include new requirements for hot-work permits, updated pipe schedule thicknesses, and revised testing pressures. Using an old handbook can cause a failed insurance or OSHA audit. iiar ammonia refrigeration piping handbook pdf link
Proper piping design is crucial in ammonia refrigeration systems to ensure safe and efficient operation. A well-designed piping system can help prevent accidents, reduce energy consumption, and minimize downtime. The IIAR handbook provides detailed information on piping design, including recommendations for pipe layout, support, and insulation. – The handbook uses NPS (Nominal Pipe Size)