scope:

This Practice describes the guidelines for the layout of plot areas, equipment, pipe racks, piping, platforms, roads, and other miscellaneous items.

Layout includes equipment location, access and egress for personnel safety, access for operations and maintenance, and provisions for operational housekeeping and constructability.

This guide does not cover any requirements for owner safety and property protection needs such as loss prevention, vapor cloud explosions, or environmental or flare/vent stack requirements. Spacings in the "Recommended Equipment Spacing Charts" are based on industry experience predominantly from a fire exposure/asset loss stand point and are generally applicable for facility processing flammable and combustible gases and liquids.

Purpose

This Practice provides guidance for engineers for the design and layout of process units and offsites. This guide should be used as a starting point for the development of plans, electronic models, and working drawings for process units and offsites. This Practice should be coordinated with the overall site and offsites layout for geotechnical, grading, zoning, building codes, life safety, fire codes, and owner's and insurer's risk assessment requirements.