pig, go-devil - cylindrical plug with brushes, scrapers and rollers on its periphery and able to move under the oil pressure through a pipeline and clean it
Equipment not specially designed for use in crude oil export terminals but which because of their large capactiy can be used for this purpose:
- loading pumps of large capacity (4 000 m3/H and above) and small head (10 bars or less),
- boosting pumps within the same range of flow rates,
- in-line pipe line inspection tools and cleaning devices (i.e. pigging tools) (16' and above),
- metering equipment of large capacity (1 000 m3/H and above).
