FIELD: oil producing industry.
SUBSTANCE: invention is designed for use on flow lines of oil producing wells, on pipelines and tanks as sampling devices. Proposed sampler-valve for pipeline has housing, spindle with running thread and shutoff member and seal unit. Pressure bushing of seal unit is provided with connecting threads with housing and spindle. Part of pressure bushing is made in form of polygon. Two stop screws keep pressure bushing motionless relative to housing. Screws are arranged in housing coaxially opposite to each other, perpendicular to axis of housing, and are pressed along thread with housing against faces of pressure bushing.
EFFECT: simplified design owing to protection of running thread of spindle from taken-in liquid by seal unit.
2 dwg
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