VALVE FOR SAMPLING FROM PIPELINE Russian patent published in 2016 - IPC F16K13/08 G01N1/10 E21B49/08 

FIELD: oil industry.

SUBSTANCE: invention relates to oil industry and is intended for collecting samples from manifold valves of oil well head, and sampling fluid from pipeline. Valve for sampling from pipeline comprises sampling branch pipe with inlet for sampling from pipeline, housing, shutoff assembly and a channel for drainage of sample. Shutoff valve assembly is a continuation of housing and is arranged inside pipeline for heat transfer from flowing liquid to housing and its locking unit. Shutoff assembly comprises ball in contact with end of shaped head shaft-pusher. Shaft-pusher with central channel is arranged coaxially in housing a sampling valve is installed with possibility of rotation. End shaped head is made along helical spiral representing running surface for contact with ball. Inlet hole with mounting seat for ball is made eccentrically in relation to axis of rotation of shaft-pusher.

EFFECT: higher operational reliability of sampling valve from pipelines, especially in winter time.

2 cl, 2 dwg