TEST RANGE Russian patent published in 2015 - IPC F16L101/30 F17D3/00 

FIELD: machine building.

SUBSTANCE: invention relates to pipeline transport. Test range contains connected pump station, metering-regulating station, process pipelines with shutoff valves, pipelines pig launchers/receivers, first, second and third ring pipelines with different diameters, work fluid tank, secondary electric pump units, drain and secondary pipelines. Along the first, second and third ring pipelines the artificial defects, and different obstacles are made: restrictions, gate valves, tees, branches with different radius, welded ring butt joints, and butt joints using backing rings.

EFFECT: possibility of calibration and certification of pigs, check of compliance between device readings and actual defect size.

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