In an effort to handle such extreme pressures, R-744 systems are equipped with pressure relief valves (PRVs ... including refrigeration, air conditioning, and heating,” he said. “Its ability to serve ...

The limits are based on pipe size and relief valve discharge capacity in pounds of air per minute ... comply with the ASME code for unfired pressure vessels. Discharge rates are certified by the ...

The alert is a result of an investigation into the deaths and injuries from hazards identified with emergency pressure-relief systems. On March 6, the U.S. Chemical Safety and Hazard Investigation ...