Predetermined interval constant volume on-line sampler

Details Predetermined interval constant volume on-line sampler Predetermined interval constant volume on-line sampler

G - Physics

01

N

73/103

G01N 1/20 (2006.01) G01N 33/04 (2006.01)

Patent

CA 1138675

ABSTRACT OF THE DISCLOSURE On-line sampler using a piston having its rod reciprocally mounted in a tubular member which reciprocates in a passage, at least the piston and its rod adapted to project out of said passage into the line in which fluid to be sampled is flowing. Upon return of the piston and the tubular member into the passage, a constant volume of sample between the annular faces of the piston and the tubular member is taken into the passage, from which the sample is discharged under positive pressure by moving one of said annular faces into substantially face-to-face contact with the other annular face.

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