Any vessel over what volume requires dual safeties?

The requirement for dual safety devices for pressure vessels is primarily aimed at ensuring safety through redundancy, particularly in cases where the vessel is subject to high pressures. The specific volume value that triggers this requirement is set in industry regulations to mitigate the risk of failures.

In this context, a vessel that exceeds a volume of 10 cubic feet necessitates the installation of dual safety mechanisms. This is due to the increased potential hazard associated with larger vessels; the potential consequences of a failure in a high-pressure environment are significantly more severe with larger volumes. Therefore, by mandating dual safeties for vessels over this specified volume, regulations help to ensure that if one safety device fails, the other remains in operation to manage the pressure safely.

This dual safety requirement is a critical aspect of operational safety in the context of high-pressure systems, as it provides an additional layer of protection for both workers and equipment, reinforcing the overall safety culture within industries that handle pressurized vessels.