Scope

The scope of the Pressure Equipment Directive is rather wide, covering equipment such as:

  • Reaction vessels
  • Pressurised storage containers
  • Heat exchangers
  • Steam generators
  • Shell and water tube boilers
  • Industrial pipe work
  • Safety devices and pressure accessories

Such pressure equipment is widely used in the process industries (chemical, petrochemical, biochemical, food processing), high temperature process industry, refrigeration and energy generation. Furthermore, the directive covers equipment normally used in any general engineering process (such as gas cylinders and certain compressed air equipment).

Typical examples of safety devices include:

  • Safety valves
  • Buckling rods
  • Controlled safety pressure relief systems
  • Pressure switches
  • Temperature switches and fluid level switches
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