Factory Acceptance Checks for a Three-Phase Separator

Buyers should define measurable pass or fail checks for a three-phase oil, gas and water separator before factory acceptance testing, covering vessel dimensions, connections and listed pressure.

For a three-phase separator, the first buyer decision is whether the factory acceptance test should verify geometry and connections only, or also include pressure-related checks. That choice shapes the test plan, witness requirements and acceptance records.

Ask the supplier to state how the 3,000 × 900 mm vessel dimensions will be measured and recorded, and whether the DN50 inlet and DN100 gas outlet will be checked against agreed drawings. For the listed 1.7 MPa pressure, request the test method, hold period and acceptance criterion in writing, and confirm whether a witnessed hydrostatic test is offered. Treat these catalog values as reference points, not as proof that a supplied unit matches them.

Useful pass or fail questions include: are dimensions within stated tolerances; do connection sizes and orientations match the approved drawing; are material certificates traceable to the oil, gas and water service; and are test records signed and dated? For filtration duty, ask how internal components will be inspected and whether cleanliness checks are included.

Before requesting a quote, confirm with the supplier which checks are standard, which are optional, who witnesses the test, what documentation is issued, and how deviations are recorded and resolved.

Keywords
  • three-phase separator
  • factory acceptance test
  • 3,000 × 900 mm vessel dimensions
  • DN50 inlet and DN100 gas outlet
  • 1.7 MPa pressure