Flow Through Sampler (FTS)

The Kuster FTS Flow Through Sampler is 1.5” (38mm) in diameter with a sample chamber volume of 600CC. When the FTS Sampler is lowered in to the well, two spring-loaded valves, one at each end of the sample chamber, are held open by an internal latching mechanism. At the desired depth, a mechanical clock that is programmed on the surface for the desired closing time closes the valves. With both valves closed, the sample is contained and can be removed from the well for analysis.


  • Pressure retaining fluid sampler


  • Proven mechanical design
  • Clock programmable for 1, 2, 5 or 6 hours
  • High operating temperature
  • Retains wellbore pressure
  • All materials meet NACE MRO175 specifications for corrosive wellbore media


Type Diameter Pressure Temperature Hours
Flow Through Sampler (FTS) 1.5" 10,000 psi 232°C 1, 2, 5, 6