Iiar Ammonia Refrigeration Piping Handbook Pdf Jun 2026

Pressure relief valves (PRVs) protect vessels and piping from catastrophic overpressurization due to fire or operational failures.

Ammonia piping systems frequently carry a mixture of liquid and vapor. Iiar Ammonia Refrigeration Piping Handbook Pdf

The handbook is often used in conjunction with (the standard for safe design) and IIAR 4 (installation). By following the piping handbook, facilities ensure they meet the requirements of OSHA’s Process Safety Management (PSM) and the EPA’s Risk Management Program (RMP). It includes specific guidance on valve placement, emergency shut-off locations, and hydrostatic relief to prevent pipe ruptures during hydraulic expansion. Practical Utility Pressure relief valves (PRVs) protect vessels and piping