Can the LGF-PA66 Measure Slurry and Sediment-Laden Water?

Yes. By its measuring principle the electromagnetic flow meter has no moving parts and no obstruction in the flow path, so it is inherently suited to media with solid particles - exactly where the LGF-PA66 beats mechanical water meters and turbine meters. Sediment-laden water, slurry, mining slurries and wastewater with suspended solids can all be metered reliably as long as conductivity is >= 5 uS/cm.

On abrasion: the LGF-PA66 measuring tube is lined with PTFE, one of the most wear- and corrosion-resistant liner materials in the industry. Electrodes come in 316L, Hastelloy or titanium - 316L is fine for ordinary sediment-laden water; for mine dewatering or high-chloride water we suggest Hastelloy. The PA66 composite body itself is strong and tough, and it does not suffer the liner delamination that rubber-lined carbon steel bodies show under long-term vibration.

Two sizing tips:

• For large particles or high velocity (>3 m/s), step the bore up one size to lower flow velocity - liner life extends noticeably;
• For slurry service, set a proper low-flow cutoff and use the empty-pipe detection function to avoid signal jumps when sediment settles on electrodes during shutdown.

LGF-PA66 and the split-type LGF series are widely used for slurry metering in mining, dredging and municipal wastewater.

For more details, please visit our product pages or contact our technical team.