Rotating Equipment & Mechanical Systems

Rotating equipment is one of QSC's core activities. QSC provides technical inspection, quality surveillance, test witnessing and specialist support for compressors, pumps, turbines, gearboxes and associated mechanical systems used in process industries, power generation, oil and gas and manufacturing.

Compressor package during inspection
Rotating equipment package before shipment
Large electric generator

Compressors

Centrifugal, axial, reciprocating and screw compressors (API 617, 618, 619), compressor packages, auxiliary systems, seals, lubrication and seal oil systems (API 614), control interfaces, vibration assessment and factory performance testing (ASME PTC 10).

Pumps

Centrifugal pumps (API 610) and positive-displacement pumps (API 674, 675, 676), pump packages, mechanical seals (API 682), bearings, mechanical inspection, hydrostatic testing, performance and NPSH testing and FAT.

Gearboxes & Reduction Gears

Special-purpose gear units (API 613), speed reducers, couplings (API 671), shafts, bearings, lubrication systems, dimensional inspection, assembly checks and mechanical running tests.

Turbines & Drives

Steam turbines (API 611 general-purpose and API 612 special-purpose) and gas turbines (API 616), with their drivers and auxiliaries: electric motors, gearboxes, couplings, lube and seal oil systems, control and machinery protection systems (API 670). QSC inspects manufacture and assembly, witnesses mechanical running tests and string tests, and reviews the final documentation.

Tests & Documentation

  • Material verification
  • Manufacturing surveillance
  • Machining and dimensional inspection
  • Assembly inspection and alignment
  • Balancing-record review and residual unbalance checks (ISO 21940)
  • Vibration measurements (ISO 20816)
  • Mechanical running tests
  • String tests (driver and machine tested together)
  • Performance tests and NPSH tests
  • Lube-oil flushing and cleanliness checks
  • FAT (factory acceptance testing)
  • Installation and alignment checks at site (API 686)
  • Review of final test documentation

Typical Deliverables

  • Inspection reports
  • Mechanical running test and string test witness reports
  • Performance test reports
  • FAT reports
  • Final documentation reviews

Related Services

Request a quotation
Rotating Equipment & Mechanical Systems