What is the exemption limit for refrigerant pressure vessels containing non-corrosive gases?

The exemption limit for refrigerant pressure vessels containing non-corrosive gases is indeed 3 cubic feet. This measurement is important within the context of pressure piping regulations because it determines when certain safety protocols and licensing requirements apply. Vessels that meet or are below this cubic footage generally do not require the same level of scrutiny or adherence to strict regulations as larger vessels, reflecting a focus on managing risks associated with pressurized systems.

Understanding the exemption limit helps professionals identify which installations or modifications require official oversight and helps streamline the regulatory process for smaller systems that are inherently less dangerous. This allows contractors and technicians to operate more flexibly while still maintaining a safe working environment.