Efficient fuel oil sampling valve

The invention discloses an efficient fuel oil sampling valve which comprises a sampling pipeline, a first stand column, a first straight pipe, a first through hole, a first external thread, a second stand column, a limiting clamp, a second straight pipe, a second through hole, a first limiting ring, a second sealing ring, a second external thread, a U-shaped clamping plate, a limiting nut and an injector. A coaxial first straight pipe is arranged on the upper end face of the first stand column, the upper end of the first straight pipe extends out of the sampling pipeline, and a plurality of first through holes are formed in the pipe wall of the first straight pipe and formed in the inner side of the sampling pipeline. The device is simple in structure, reasonable in design and capable of quantitatively and efficiently intercepting a medium in a fuel oil pipeline, and excessive waste of fuel oil sampling is avoided. 本发明公开了一种高效燃油取样阀，包括取样管道、第一立柱、第一直管、第一通孔、第一外螺纹、第二立柱、限位卡、第二直管、第二通孔、第一限位环、第二密封圈、第二外螺纹、U形夹板、限位螺母、注射器，