Grab Sampling Systems

The Swagelok® grab sample module (GSM) is a sampling panel that uses sealed, metal, pressure-containing cylinders to capture either liquid or gas. This closed-loop sampling system uses differential pressure to drive fluid through the sampling system, ensuring fluid is fresh and ready for sample capture.

• The continuous flow configurations allow the sample transport lines to continue flowing while sampling.
  
• The GSM left in the bypass or sample position indefinitely keeps transport lines fresh and ready for sample capture.
  
• A grab sampling cylinder (GSC) is docked, and process fluid is continuously circulated within to maintain process conditions.

The Swagelok® grab sample liquid (GSL) is a liquid-only sampling system for drawing fluid into a non-pressure-containing laboratory bottle with a self-sealing septum cap in applications where the process fluid is not as risk of fractionating or evaporating when stored at atmospheric pressure.

• The GSL can use lower-cost glass or polyethylene laboratory bottles to draw and store samples.
  
• Using bottles can provide immediate feedback on the visual quality of the sample stream
  
• Samples can be drawn and transported without the risk of spillage or evaporation