Inspection and Testing

All Duragas compressors are tested in accordance with API Standard 619, or ISO 1217 if you prefer, with slip tests in accordance with section 4.52 of ASME Performance Test Code 9 ‘Displacement Compressors, Vacuum Pumps and Blowers’. In addition to a blower bench test, we carry out performance testing of complete packages. All instruments are calibrated to nationally accepted standards. We have full inspection capabilities using 3D co-ordinate measuring equipment and manual inspection equipment. All tests can be witnessed.

Inspection and testing
FAT (Factory Acceptance Test)


A variety of non-destructive testing (NDT) options are available.

  • Liquid/dye penetrant inspection (LPI/DPI)
  • Magnetic particle inspection (MPI)
  • Positive material identification (PMI)
  • Radiographic testing (RT)
  • Ultrasonic testing (UT)

We offer a wide range of mechanical and electrical testing in our test bay.

  • API Standard 619 testing
  • Endurance testing
  • Hydrostatic pressure testing
  • Leak testing
    • Pneumatic leak testing
    • Helium leak testing
    • High-vacuum leak testing
  • Performance testing / run testing
  • Sound pressure level (‘noise’) measurement
  • Static and dynamic balancing
  • Vibration level measurement

Types of Inspection Include:

  • EN 10204 ‘Metallic Products – Types of Inspection Documents’
    • Declaration of compliance with the order “type 2.1”
    • Test report “type 2.2”
    • Inspection certificate “type 3.1”
    • Inspection certificate “type 3.2”
  • ISO 10747 ‘Steel and Steel Products – Inspection Documents’
  • Frosio coating inspection
  • NACE coating inspection

The inspection of your compressor and compressor packages can be carried out by you, a third-party inspection agency (TPIA) or a classification society, such as

  • American Bureau of Shipping (ABS)
  • Bureau Veritas (BV)
  • DNV GL
  • Lloyd’s Register (LR)

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