Model 425 Discrete Interval Sampler 2" Diameter

Sampling with the Discrete Interval Sampler

  1. Take the Sample Release Device (SRD) End Piece and lubricate the o-ring.
  2. Lubricate the o-ring on the SRD Stem and slip the SRD Stem through the SRD End Piece from the threaded end until the pin reaches the threads.
  3. Thread the SRD into the bottom of the Lower End Plug until it is finger tight.
  4. Lubricate the Lower End Plug o-ring.
  5. Lubricate the o-ring on the Valve Body and thread into the top of the Lower End Plug.
  6. Lubricate the o-ring on the Valve Poppet and drop into the Valve Body, narrow end in first.
  7. Lubricate the o-ring for the Central Rod Connector and thread into the Valve Body.
  8. Take the Central Rod and thread approximately 4 rotations to just get it started at this point.
  9. Slide the Sampler Body over the Central Rod until completely butted up against the Lower End Plug.
  10. Lubricate the o-ring on the Upper End Plug.
  11. Lubricate the o-ring on the Central Rod Connector and thread into the Upper End Plug until finger tight.
  12. Line up the Central Rod Connector on the Upper End Plug with the threaded portion of the Central Rod in the Sampler Body and begin to thread together.
  13. Tighten the Top and Bottom End Plugs until the Sampler Body is completely butted up against both of these to form a good seal.
  14. Unscrew the Compression Fitting and carefully remove so as to not lose the Ferrules inside the fitting.
  15. Place the Lowering Bracket over the threaded portion of the Compression Fitting (Optional).
  16. Take the nut of the Compression fitting and slide onto the tubing. Slide the Hat shaped Ferrule over the tubing and then the Cone shaped Ferrule until you have about 2 inches of tubing exposed.
  17. Butt the tubing into the Compression Fitting.
  18. Slide the Ferrules down until they are butted together at the top of the Compression Fitting.
  19. Slide the Nut of the Compression fitting down the tube and thread onto the Upper End Plug until finger tight. Then take a 9/16" wrench and tighten the Compression fitting another 1 1/4 turns.