ISO 23251 is officially titled:
"Petroleum, petrochemical and natural gas industries — Pressure-relieving and depressuring systems"
This standard provides guidance for the design, evaluation, and installation of pressure-relieving and depressuring systems used to protect equipment during overpressure scenarios. It applies to a wide range of pressure-containing systems and components, including:
The standard is used primarily in refineries, chemical plants, and gas treatment facilities, ensuring safe discharge, flare, or venting of gases in abnormal situations such as fire exposure, blocked outlets, or equipment failure.
Overpressure incidents can lead to:
ISO 23251 helps companies:
Implementing ISO 23251 provides a robust framework for protecting people, equipment, and the environment:
Ensures valves and piping can handle worst-case scenarios without failure.
Reduces the risk of catastrophic overpressure events and toxic releases.
Supports process design, flare load calculations, and system simulation.
Manages emissions from emergency venting and flaring in line with ESG goals.
Maintains consistent, traceable engineering and operational records.
By partnering with GMC for ISO 23251 consulting, your organization gains strategic advantages:
Implement safeguards that prevent costly interruptions and damage.
Meet OSHA, API, and local environmental requirements.
Enable safer, faster system depressing during process upsets or fire exposure.
Ensure that relief systems operate correctly and don’t overcompensate or underperform.
Demonstrate that industry-standard risk controls are in place.
Integrate pressure relief systems with other process safety management (PSM) tools.
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