Ultrasonic thickness measurement determines whether in-service equipment has thinned due to internal corrosion, erosion or wear, with access from one side only. It is the primary tool of periodic inspection programmes and integrity management.
Scope
- Thickness mapping (grid measurement) of storage tank bottom and shell plates
- TML (thickness measurement location) monitoring on pipelines and process piping
- Measurements on pressure vessel, boiler and heat exchanger shells
- Through-coating (echo-to-echo) measurement on painted surfaces
- High-temperature probes (up to 300 °C)
- Comparison with minimum design thickness and corrosion rate calculation