Welding, Corrosion and Inspection
Inspection and NDT
API 570 Piping Inspection Code: Repair, Alteration, & Rerating of In-Service Piping Systems
Inspecting in service piping to API 570, and deciding on repair, alteration or rerating with the evidence to support it.
- Duration
- 5 days
- Contact hours
- 30
- Level
- Intermediate
- Fee from
- On enquiry
Overview
API 570 governs piping that is already in service, which is a different problem from piping being built. The material is degrading, the data is incomplete, and the question is rarely whether a line is perfect but whether it can keep running and for how long. This week works through the inspection intervals, the thickness measurement and the corrosion rate calculations that produce a remaining life, then through what the code permits when the answer is uncomfortable: a repair, an alteration, or a rerate. Calculations are done by hand on real figures, because a number produced by a spreadsheet nobody present can check is not evidence.
Who should attend
Piping and plant inspectors, integrity and reliability engineers, maintenance engineers responsible for static equipment, and QA staff preparing for the certification examination.
What you will be able to do
- Apply the inspection intervals and classify piping by service.
- Calculate corrosion rate, minimum thickness and remaining life from real readings.
- Choose inspection methods that will find the damage mechanism actually present.
- Separate repair from alteration from rerating, and follow the route each requires.
- Assemble records that support the decision when it is questioned years later.
How it is taught
Short input, then work, across 5 days of roughly 6 teaching hours each. Exercises run on situations delegates bring rather than on a case study written for a different organisation. Cohorts are capped so that everybody is asked something.
Available as classroom, live online, in house.
Programme outline
Day 1
Scope and organisation
- What the code covers, and what it does not
- Owner, inspector and engineer, and the authority each holds
- How it sits against ASME B31.3 and API 574
Day 2
Damage and where to look
- Corrosion mechanisms by service
- Injection points, deadlegs and soil to air interfaces
- Corrosion monitoring locations, chosen deliberately rather than inherited
- Condition monitoring methods, and the limits of each
Day 3
Thickness and remaining life
- Taking a reading that means something
- Short term and long term corrosion rates
- Minimum required thickness
- Remaining life, and the interval it dictates
Day 4
Repair and alteration
- Temporary and permanent repairs
- Welded leak box and sleeve repairs
- Alteration, and the approval it needs
- Examination after a repair
Day 5
Rerating
- When a rerate is the right answer
- Calculation, documentation and approval
- Records, nameplates, and keeping the change traceable
What you leave with
- Worked remaining life calculations on your own thickness data.
- An inspection plan for one circuit, with intervals and methods justified.
- A rerating file structure that satisfies the code.
Dates and fees
| Dates | Location | Format | Fee |
|---|---|---|---|
| 23 to 27 November 2026 | Durban, South Africa | Classroom | R15,000 |
| 30 November 2026 to 4 December 2026 | Lagos, Nigeria | Classroom | US$1,500 |
| 7 to 11 December 2026 | Nairobi, Kenya | Classroom | US$1,500 |
| 14 to 18 December 2026 | Accra, Ghana | Classroom | US$1,500 |
Fees are per delegate and cover tuition, all programme materials and the certificate. Travel, accommodation and visas are arranged by the delegate. Registration closes two weeks before a programme starts.
Certificate
A GATI certificate recording what was attended, issued after the programme has run and attendance has been taken. Attending at least 80 per cent of the days earns a certificate of completion; attending less earns a certificate of attendance stating exactly what was attended. Every certificate carries a code that anybody can check against GATI's own record.
It records participation. and GATI does not claim one it does not hold.