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HEP

HEP — High-Energy Piping

Piping systems operating at pressures and temperatures that present significant safety risks if failure occurs.

Definition

High-Energy Piping (HEP) refers to piping systems that operate under elevated pressure and temperature conditions where failure could result in catastrophic release of energy, serious injury, equipment damage or loss of production. HEP systems require enhanced engineering design, inspection, monitoring and integrity management throughout their operational life.

Why It Matters

High-Energy Piping programs reduce the likelihood of catastrophic piping failures by applying risk-based inspection, fitness-for-service assessments and rigorous maintenance practices.

In Practice

High-Energy Piping is commonly associated with high-pressure steam systems and critical process piping where degradation mechanisms such as creep, fatigue and flow-accelerated corrosion require continuous monitoring.

Common Misuse

High-Energy Piping is classified according to its operating conditions and potential consequences of failure rather than by piping material or service alone.

Term Details
Synonyms:
HEP; High-Energy Piping; High Energy Piping
Classification:
Mechanical Integrity
Concept
Advanced
Applications

Mechanical Integrity; Inspection & NDT; Process Safety.

Where It's Used

Power generation.; Steam systems.; Refineries.; Petrochemical plants.; Process facilities.

References

ASME B31.1

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