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Specialist Integrity Service

PSV Integrity Management
Pressure Safety Valve RBI

Risk-based inspection program development for pressure safety valves — moving from fixed-interval testing to defensible risk-informed inspection intervals, performance reliability tracking, and regulatory alignment.

Pressure Safety Valves are final protective devices against overpressure — critical safeguards whose failure can threaten personnel safety, the environment, and production integrity. PSV RBI is not about testing less; it is about testing intelligently — focusing inspection and overhaul resources on the valves that matter most, using engineering evidence from service history, risk ranking, and performance data to make defensible decisions.

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Why PSV RBI

Not All PSVs Carry the Same Risk

A fixed-interval PSV testing program treats all valves identically regardless of service severity, fluid characteristics, installation history, or consequence of failure. A well-designed PSV RBI program identifies where risk is highest, focuses inspection and overhaul resources accordingly, and uses performance data as engineering evidence to inform future decisions.

For some low-risk PSVs in clean, stable service, RBI may justify optimized intervals. For high-risk valves in dirty, corrosive, fouling, or high-consequence service, RBI may require shorter intervals, enhanced testing, refurbishment, or root cause investigation of repeated deviations.

—PSV failure — to open or to reseat — compromises the pressure protection layer
—Not all PSVs have equal risk: service severity, fluid, duty, and consequence vary significantly
—Fixed intervals may over-inspect low-risk valves and under-inspect high-risk ones
—As-found test data is engineering evidence — it should drive RBI, not be filed and forgotten
—Repeated set pressure drift or seat leakage indicates a valve or service problem requiring investigation
—Consequence of PSV failure must include safety, environmental, production, and regulatory impacts
—Canadian jurisdictions have specific requirements — PSV RBI must align with the applicable AHJ
—PSV RBI is most defensible when documented within a formal owner-user integrity program
Service Capabilities

PSV Integrity Management — What TES Canada Delivers

PSV Inventory & Data Management

  • —PSV register development and gap identification
  • —Tag, location, service, and set pressure documentation
  • —Fluid service and process conditions characterization
  • —Test history and as-found/as-left data collection
  • —Discharge system and installation review
  • —Rupture disk and redundant protection review

Risk Ranking & Interval Justification

  • —Probability of failure — service severity, fouling, corrosion
  • —Consequence of failure — safety, environmental, production
  • —Risk ranking by combined PoF and CoF
  • —Defensible inspection interval determination
  • —Identification of high-risk valves requiring priority attention
  • —Alignment with API RP 580 and API RP 576 methodology

Performance Trending & Reliability Analysis

  • —As-found set pressure deviation analysis
  • —Seat leakage and valve condition trending
  • —Repair history and repeat deviation tracking
  • —Identification of poor-performing valve populations
  • —Service severity reclassification from performance data
  • —Program improvement recommendations from trend analysis

Regulatory Alignment & Documentation

  • —ABSA AB-505 and AB-506 alignment support (Alberta)
  • —Owner-user program documentation
  • —Provincial regulatory requirement mapping
  • —PSV inspection and testing procedure review
  • —RBI program documentation for AHJ review
  • —Management review package preparation
Standards & Frameworks

Aligned with PSV Inspection and Regulatory Standards

API RP 576Inspection of Pressure-Relieving Devices
API RP 580 / API RP 581Risk-Based Inspection Methodology
API 520Sizing, Selection, and Installation of Pressure-Relieving Devices
ABSA AB-505Risk-Based Inspection Requirements — Alberta (example)
ABSA AB-506Inspection and Servicing Requirements — Alberta (example)
CSA B51Boiler, Pressure Vessel, and Pressure Piping Code
Related Services

Connected TES Canada Services

Risk-Based Inspection (RBI)→Corrosion Management→CUI Integrity Management→Fitness for Service (FFS)→Anomaly Management→Quality Management & Compliance→
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Discuss Your PSV Integrity Program

Whether you are developing a new PSV RBI program, reviewing existing inspection intervals, analyzing performance data, or preparing regulatory documentation, TES Canada can help.

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