Equipment and Piping

Equipment Index Image

Safe and efficient operations in process and energy facilities depends on the integrity of the equipment, piping and instrumentation that is being used. This section provides articles, ebooks and safety moments to do with the equipment integrity. Additional, in-depth material is available in the books Plant Design and Operations and Process Risk and Reliability ManagementCurrently available materials are shown below.

Ebook/Video/Checklist Packages

  • Storage tanks


  • Plugged lines
  • Isolation methods
  • Layout and siting
  • Blinds in process piping
  • Pig launching and retrieving

Safety Moments

Process Facility Layout

Process Facility Layout


The words ‘siting’ and ‘layout’ are often used interchangeably, but, strictly speaking, they have different meanings. Siting is concerned with the location of a facility. For example, if a company is planning on building a new chemical plant its management may consider the relative merits of sites in Texas, Mexico or China. Layout, on the other hand, is to do with the locations of equipment, piping and buildings at the selected site and how they connect with one another.

Pig Launching and Retrieving

Pipeline pigs (also known as 'scrapers' and 'tools') are widely used to clean piping, to provide a buffer between two liquids and to inspect the integrity of the line (using 'smart pigs'). Whatever the reason for pigging a line the pig has to be launched and then retrieved. This article provides an overview of launching and catching procedures.

Storage Tanks

Storage tanks are widely used in the process industries to store liquids that are below their boiling point at atmospheric temperature (some tanks may be insulated and they may have heating or cooling coils to maintain the temperature of the liquid that they are storing). Typically, tanks are either open to the atmosphere or to a system such as a flare or vent header that is at atmospheric pressure (this does not apply to floating roof tanks). Unlike pressure vessels, storage tanks cannot handle either high pressure or vacuum conditions.

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