FIELD: chemical, oil, gas, petrochemical industries, metallurgy, medicine, biology, ecology. SUBSTANCE: facility is meant for chromatographic analysis of gaseous and liquid substances under increased pressure in various branches of industry and science. Facility includes body comprising two prefabricated sections interjoined through six stuffing-box seals. Two through axial conduits where shut-off elements travel are made in sections. Shut-off elements are manufactured in the form of hollow tubes with plugs on one side and holes in side surface of tubes in circular recess over outer diameter, close to plugs. Each axial conduit is linked to two radial holes arranged in centers of prefabricated sections on diametrically opposite sides. Dose of metered-out volume including gas volume of heated evaporator of gas chromatographer is connected to upper radial hole of section of first axial conduit, carrier gas line is linked to lower radial hole of first section and upper radial hole of second section which lower radial hole is connected to discharge line. Inlet of chromatographic column and inlet of evaporator are connected correspondingly to shut-off elements of first and second axial conduits. EFFECT: simplified design and enhanced functional reliability of facility. 3 dwg
