Automatic liquid sample thief

The Automatic Liquid Sample Thief is designed to provide a liquid sample in case the process analysis results are offset or analyser measurements are doubtfull. With the Automatic Liquid Sample Thief you can take manual locally a spot sample with time stamp or you remotely push the buttom from the plant control room, the Liquid Sample Thief can take automatically a sample direct from the actual process, with the timestamp you lock and safe the analyser values and the remote sample can be analysed in the laboratory.

The Liquid Sample Thief is a type fixed volume sampler, it takes liquid samples from the high process line pressure while keeping the operator safe and isolated from the process area.
Automatic Liquid Sample Thief provides your company with the means to acquire representative, safe and emission-free samples. The easy-to-use systems, manufactured by Mechatest, allow for safe operating, protecting the operator against hazardous, volatile emissions. Keep it simple, keep it safe, use equipment engineered and built by Mechatest for your Automatic Sample Thief for liquid sampling.


Why Automatic Liquid Sample Thief is important


The Automatic Liquid Sample Thief is designed to provide a fixed volume sample independent of process pressure or flow rates, while keeping the operator isolated from the process stream and line pressure.

This simplified, pneumatic double-valve design allows for volume accuracy while obtaining a representative, emission-free sample safely. A pre-measured volume of sample is isolated and moved to a sample bottle with or without a carrier gas. This system is a true dead volume sampler, as it and the sample vial are fully purged during the sample cycle, providing an inert atmosphere prior to each sample. The panel mounting allows for easy pipe, wall, or flange mounting.

The Automatic Liquid Sample Thief can be designed to work automatically with PLC system or controlled from your DCS system.

Companies active in (petro)chemical industries acknowledge the importance of collecting representative samples. Proper Automatic Liquid Sample Thief is necessary to ensure product verification and the quality of end products. Fixed volume liquid sampling prevents spillage and is ‘failure proof’ at the sample tap. The sampling systems by Mechatest prevent any contamination and allow for a sample that represents the entire batch because the sampling is independent from the other process conditions. Due to its fixed volume, this form of liquid sampling also allows for better comparison between different samples of the same batch.

  • Creating closed loop systems emission free which provide a safe, controlled environment
  • Suitable for high pressure process application
  • Adding sample (needle or process) purge options with Nitrogen or other gas
  • Fixed volume sampling, which minimizes both waste and costs
  • Simplifying designs, making the sampling of liquid and gas more efficient
  • Proper discharge of excess liquid or gas prevents unwanted pressure build-up in the system

These modern solutions simply regard the sampling systems themselves. Our worldwide reputation rests on the combination of excellent systems, and professional services by our team of specialists.


Enjoy the full benefits of an experienced team of passionate professionals

Mechatest employees possess decades of experience and knowledge. All of which is at your disposal when your sampling system needs adaptations, maintenance or repairs. Our staff has high-tech equipment at their disposal, thus increasing their efficiency even more. We are even capable of designing and manufacturing in accordance with foreign codes and standards.


Start improving by sampling process today

Why wait any longer? Improvement starts today if you pick up the phone and call us at +31 (0)15 – 310 51 83. Our staff provides you with all the information you need to make an informed decision and choose the best sampling systems for liquid or liquefied gas.


Also view

sample bottle choices | bottle sampler configurations | lab sampling | sampler request form | guide to select the best sampler | needle purge sampler | polyester housings | sentry sample cooler | spot sampling

closed loop sampling emission free | fixed volume liquid sampling | fluid sampling


Automatic Liquid Sample Thief, Analyser sample check, Fixed Volume Liquid Sampler - Mechatest
Automatic Liquid Sample Thief
Fixed Volume liquid sampler - Mechatest

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