Quality, inspection and testing
Quality is checked at every stage of the build and recorded as we go, so the documentation is complete when the equipment leaves our works.
Quality assurance plan
Each pressure-equipment order follows a quality assurance plan (QAP) agreed with you before work starts. It sets out every inspection and test, who witnesses it, and the record that proves it.
Material traceability
Plates, pipes and forgings arrive with material test certificates. Heat numbers are transferred to each cut piece, so every pressure part of the finished equipment can be traced to its certificate.
Welding
Welding is carried out to qualified welding procedure specifications (WPS), supported by procedure qualification records (PQR), by welders qualified for the process and position. Welding consumables are stored and controlled as the procedure requires.
Non-destructive examination
Welds are examined as the code and your specification require: visual examination, dye penetrant and magnetic particle examination for surfaces, and radiography or ultrasonic testing for butt welds.
Pressure and leak testing
Pressure equipment is hydrostatically tested before despatch. Pneumatic and leak tests are carried out where the code or your specification calls for them.
Third-party inspection
We welcome inspection by your engineers or by the third-party agency you appoint, at any witness or hold point in the QAP.
The data book
Handed over with the equipment.
- Approved drawings and design calculations
- Material test certificates
- WPS, PQR and welder qualification records
- Non-destructive examination reports
- Pressure test certificates
- Inspection release note
- Painting or passivation record
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Questions about inspection or documentation?
Tell us what your project specification requires, and we will build it into the quality assurance plan.