FIELD: technology of liquid sampling from pipe-lines employed in oil production and other branches of industry. SUBSTANCE: in correspondence with invention intake unit is positioned in pipe-line, part of flow is pumped through intake unit and through bypass pipe-line linked to it in series under action of excessive pressure. Intake units are placed in by-pass pipe-line in section of flow mixer or downstream of flow mixer. Sampling is carried out manually through one of sample intake units. Another sample intake unit with automatic sampler and bypass pipe- line is connected via conduit. Sample is taken by automatic sampler from this conduit, from conduit section between sample intake tube and point of sampling with automatic sampler. Gear for realization of procedure includes intake unit installed in main pipe-line, by-pass pipeline connected in series with intake unit, device to form excessive pressure in intake unit of main pipe-line. Sample intake units are installed in by-pass pipe-line. Automatic sampler is connected over conduit to one of samplers and by-pass pipe-line. Conduit coupling sample intake unit with automatic sampler and by- pass pipe-line are implemented or completed by units on condition that hydraulic resistance of section of conduit beginning from sample intake unit to point of sampling by automatic sampler is less than hydraulic resistance of continuation of conduit from point of sampling by automatic sampler to by-pass conduit. EFFECT: high-precision of determination of parameters of liquid transferred through pipe-line. 2 cl, 1 dwg, 1 tbl
