337 Highlandia Drive Baton Rouge, LA 70810 1.800.299.4142 [email protected]


Sentinel LNG


Sentinel LNG extends the use of ultrasonic technology into cryogenic applications. Like the Sentinel LCT, it has no moving parts and uses four-path Robust Path Configuration™. Sentinel LNG uses Bundle Waveguide Technology™ to direct greater transducer signals into the process while protecting the transducers from cryogenic temperatures.


  • Improved performance, reduced maintenance and dynamic flow measurement for cryogenic liquids
  • Fully welded construction with no moving parts
  • Ultrasonic transducers protected from cryogenic temperatures using Bundle Waveguide™ Technology
  • Full bore design, zero pressure drop
  • High accuracy to overcome limitations of tank level gauging
  • Robust Path Configuration™ through extensive use of CFD (Computational Fluid Dynamics)


  • Liquefied Natural Gas (LNG)
  • Cryogenic fluid allocation
  • Custody transfer
  • Marine Cargo Verification


The design philosophy behind Sentinel LNG was simple; building a reliable flow meter to overcome the accuracy limitation of LNG tank level measurement. Sentinel LNG is an ultrasonic flow meter with a fully welded construction that has no moving parts. The acoustic transducers are placed outside the cryogenic liquid to avoid any long-term degradation due to temperature. The design is full bore; as a result, the pressure drop over the meter is simply equal to a section of pipe with the same length.

To learn about more liquid flow meters BBP offers, click here.

To learn more about the product and its specifications, click here.


Additional information


Chemical, Engineering, Food & Beverage, Oil & Gas, Pharmaceutical, Power Generation, Pulp & Paper, Refining, Water & Wastewater