TOFD, PAUT & C-scan at high temperature
The solution for weld inspections and corrosion mapping while your plant is in operation!
Page last modified
January 15 2026
Execute your critical wall‑thickness measurements and weld inspections at elevated temperatures up to 485 °C (905 °F) — without shutting down your plant. Our specialists perform these inspections safely and reliably while your units remain in full operation, eliminating the need for costly cooling or production interruptions.
Using advanced high‑temperature UT, TOFD (Time of Flight Diffraction), and Phased Array (PA) technologies, we deliver precise and repeatable inspection results even under extreme thermal conditions. These proven techniques enable accurate detection of wall loss, flaws, and weld discontinuities at temperatures far beyond the limits of conventional ultrasonic methods.
By conducting inspections online at high temperature, you benefit from:
- Significant cost savings through reduced downtime and improved turnaround preparation
- Maximum plant availability, supporting extended runs and optimized maintenance planning
- Reliable integrity insights, allowing early detection of degradation and informed decision‑making
- Safe, high‑quality execution using equipment and procedures specifically engineered for high‑temperature applications
Our high‑temperature inspection services provide a strategic performance advantage, enhancing both operational continuity and overall production efficiency.
Pros & Limitations
1
Opportunity to revise your maintenance and inspection strategy, based on on-line non-intrusive inspections
1
High detection and accurate sizing capability
1
Also available for partially filled welds at pre-heat temperature ("Golden welds")
1
Mobile flexible teams
1
Standardised and readily available up to 350 °C (662 °F). For high temperatures up to 485 °C (905 °F) and non-standard configurations testing is needed on a sample
1
Safe operation meeting the highest safety standard
0
Non-standard configurations to be tested on a sample before deployment
Specification
| Title | Description |
|---|---|
| Theme/Discipline | PipelinesInspection |
| Core Tech | Instrumentation & Measurement |
|
Areas of Application
|
(Pressure) Equipment and piping operating at elevated temperature in refineries | Chemical plants and power generation plants
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|
Temperature
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Weld & Corrosion mapping at high temperature up to 485 °C (905 °F)
|
|
Repeatability
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Accurate repeatability of inspection
|
|
Implementation time
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Short implementation time, standardised inspections, ready for immediate deployment!
|
|
Non man entry
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Non-intrusive inspection (NII) of your assets
|
|
Speed
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Fast inspection
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Safety
|
Execution against the highest safety factors
|
Technology Readiness Level
The Technology Readiness Level (TRL) indicates the maturity level of novel technologies. Learn more about the TRL scale used by us.
[9/9]
Development
Technology demonstration
Mature / Proven
SonoInspec has over twenty years of experience in advanced non-destructive testing (ANDT). SonoInspec specialised in high temperature weld and corrosion mapping inspections. Up to 350 °C (662F) the weld and corrosion mapping inspections services are readily available for full continuous scanning. Inspections up to 485 °C (905F) are available as bespoke inspections.
The high temperature inspections are an important part of our Plant Availability concept in which we provide our clients with an inspection plan based on a non-intrusive inspection approach while the plant is still in production.
Country of Headquarters
Netherlands
Contact:
+3164617755
Visit website
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