Custody transfer flowmeter for LNG

Sentinel LNG is designed to provide accurate measurement of liquefied natural gas, offering an improved accuracy compared to traditional ship and tank level measurement. Extensive CFD (computational fluid dynamics) has been used to guarantee the high accuracy, even under conditions where flow conditions change constantly.

Sentinel LNG is designed specifically for cryogenic LNG measurements. With an externally certified measurement uncertainty of 0.2 to 0.25%, the meter is an alternative to ship and tank level measurement. Where a level measurement needs multiple level, pressure and temperature transducers to compensate for density variations, one Sentinel LNG is required to measure the total volume during loading and unloading of a ship or tanks. Tank strapping tables and corrections for a ship that moves due to wave motion are no longer required, allowing for a significant improvement in measurement accuracy.

Sentinel LNG has a fully welded construction, having no moving parts that can wear out over time and cause the meter to drift. The instrument is full bore and does not require filters or strainers that cause a pressure drop. Sentinel LNG has specially designed acoustic buffers that allow the acoustic transducers to be mounted outside the cryogenic zone. The transducers therefore never see temperature shocks to ensure prevention from long-term stress cracking.