Sodium Hydroxide Bulk Tank Radar Level Transmitter

When a Southwest municipality needed reliable level measurement of their sodium hydroxide bulk tanks, they turned to Flowline. The treatment plant uses caustic soda in pH adjustment, coagulation and softening applications. This alkali is harsh on fluid handling equipment and instrumentation alike. Corrosive, foaming when agitated, vaporous and crystalizing, the plant had chewed through float, pressure and ultrasonic level sensors in about 18 months. The operator emphasized his frustration saying, “This shouldn’t be that hard. What do you have that’ll measure reliably and last for years in these NaOH tanks?” For these reasons, Flowline suggested our 80-GHz radar sensors that are non-contact and made of PVDF, with robust level measurement that’s unaffected by agitation, foam or vapor. Finally, when we said it’s easy to setup and maintenance-free, that’s when he smiled. The radar sensor provide reliable level data to the SCADA, which monitors the tanks and alarms for chemical replenishment. Flowline is reliable level measurement.