Pressure Equipment

The concept of pressure equipment also includes pipes, and piping sections and assemblies of pressure equipment with control and safety accessories, etc. These standards are defined as “harmonised” and they cover many aspects of equipment design, production and final control. In circumstances where there are no harmonised standards, manufacturers are required to operate in conformity with the essential requirements of the directive or strictly within the guidelines imposed by these standards.

The Directive defines a number of classifications for pressure equipment with related tables, based on the hazard presented (Group 1 or Group 2), maximum allowable pressure value PS and Volume (V) or Nominal Size (DN) (whichever is being used). 

• Pressure vessels
• Heat exchangers
• Steam boilers and components
• Pressure gas cylinders
• Piping and pipelines
• Storage tanks
• Safety and pressure accessories (safety, relief valves, regulators, rupture disks, etc.)