A defined boundary that specifies the maximum or minimum permissible value of an operating parameter.
An Operating Limit is a defined maximum or minimum value for an operating parameter such as pressure, temperature, flow, level or vibration beyond which equipment performance, integrity or safety may be compromised. Operating Limits are established to protect personnel, equipment, product quality and the environment during normal and abnormal operating conditions.
Operating Limits define the boundaries that maintain safe and reliable operation of equipment and processes.
Operating Limits are established through equipment design, engineering analysis, operating experience and process safety studies, and are monitored to support safe plant operation.
An Operating Limit defines an individual operating boundary, whereas an Operating Envelope encompasses the full range of acceptable operating conditions.
Process Engineering; Operations; Process Safety.
Process plants.; Petrochemical.; Oil and gas.; Manufacturing.; Power generation.
API RP 584
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