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LR10

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When a US municipality needed reliable level measurement of their polymer mixing tanks, they turned to Flowline. Polymer is widely used in wastewater treatment to coagulate suspended solids, producing large curds of floc or solid material, which can then be easily removed from the process. Granulated or emulsive polymer is diluted with water, blended, and injected into the process with a high viscosity metering or variable speed pump. A polymer mixing tank typically holds 1-2 days of product before a new batch must be made up, and level measurement of this sticky media is critical to the operator. For this reason, Flowline suggested the use of a non-contact ultrasonic level sensor. The result is reliable polymer level measurement. Here, an EchoPod ultrasonic level transmitter is safely mounted above the polymer solution.

Despite being located next to the tank side wall and mixer shaft, the sensor’s measurement is unaffected due to its industry leading 2? (5 cm) beam width. The two-wire, 4-20 mA signal output is connected to the SCADA for level monitoring, and the integral relays actuate a high and low alarm. Flowline is reliable level measurement. 

LR30

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When a New Jersey food ingredient manufacturer needed reliable level measurement of their wastewater pump lift stations, they turned to Flowline. Sumps are liquid trash receptacles that receive, hold and ultimately transfer their contents into waste treatment. These are challenging, difficult applications with variables as diverse as the contents or weather. The facility had used submersible pressure sensors with poor results during the hot, humid months of summer. The increased condensation was clogging the sensor breather tubes and causing erratic measurement.  

For this reason, Flowline suggested the use of our pulse radar sensors that are unaffected by condensation or any other waste variable. The pulse radar sensor is bracket mounted to the sump top and provides continuous level data to the PLC, which in turn, controls the submersible pump. The push button display module is wall mounted next to the sump for local indication. Flowline is reliable level measurement.

LR20

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When a Missouri water treatment plant needed reliable level measurement of their fluoride bulk storage tanks, they turned to Flowline. Fluoride is commonly injected into the nations drinking water to prevent tooth decay. In higher concentrations, fluoride is vaporous and corrosive. The plant had used a different brand of ultrasonic sensors with poor performance, because the thick vapor was absorbing the acoustic signal, and causing the sensors to periodically lose track of the level. For this reason, Flowline suggested the use of our pulse radar sensors that are unaffected by vapor, corrosion or condensation. 

The pulse radar sensor provides continuous level data to the SCADA system, which in turn, provides inventory and safety alarms to the operators. The rugged 316L sensor has a PTFE antenna shield and coated aluminum enclosure for corrosive media. Flowline is reliable level measurement.

LR15

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When a Northern California food manufacturer needed reliable level measurement of their waste sumps, they turned to Flowline. Each of their waste streams contains particulates, powders, chemicals and steam from their clean in place process. All of which, was causing their float level switches to fail, as they would often become stuck in the high level condition. For this reason, Flowline suggested the use of our non-contact pulse radar sensors which are unaffected by steam or the contents of the application media. The pulse radar sensor provides continuous level data to the PLC, which in turn, controls the pumps and transfers the waste into treatment.

The rugged sensor is constructed of 316L with an aluminum windowed enclosure for harsh environments. Flowline is reliable level measurement.

LR30

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When a North American dairy needed reliable level measurement in their wastewater pump lift stations, they turned to Flowline. Dairy farms produce large volumes of waste with high levels of organic and solid material, which can damage the environment. The proper collection, treatment, testing and disposal of waste streams are critical to dairy operations, and key to avoiding substantial EPA polluter fines. The process begins with waste collection in sumps that fill and transfer the waste into treatment.  As  garbage receptacles, sumps are challenging environments that contain anything from feces to food, dirt to hair, foam to vapor or chemicals to debris.

For this reason, Flowline suggested the use of pulse radar sensors which are unaffected by such process conditions.  The result is reliable waste sump level measurement. Here, an EchoPulse radar level transmitter is bracket mounted and suspended over the top of the lift station. The IP68 sensor was easily configured using its remote push button display module, and the 4-20 mA signal is connected to the PLC for pump control.

LR20

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When a North American bulk liquid transportation company needed reliable level measurement of their tanker trailers, they turned to Flowline. With a range of services from chemical delivery to pick up and remediation, they have diverse applications and requirements. This particular tanker is Teflon® lined and used to pick up acid waste including hydrochloric and nitric, which are highly corrosive, vaporous and foaming when agitated. The company has successfully deployed Flowline ultrasonic sensors in other applications, but not here, due to the presence of vapor and foam. For this reason, Flowline suggested the use of our pulse radar sensors which are unaffected by such conditions. The result is reliable acid waste level measurement.

Here, an EchoPulse radar level transmitter is flange mounted on top of the tanker trailer. The rugged PTFE antenna shield protects the sensor for lasting, reliable service with corrosive media. The 4-20 mA signal is connected to the tank level indicator, where the operator monitors it throughout the day.

LR30

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When Bio-Pappel, a New Mexico paper and packaging manufacturer needed a reliable level measurement solution for their foaming wastewater processes, they turned to Flowline. At the time, Bio-Pappel had tried just about every level sensing technology with disappointing results. Contact sensors such as pressure and floats, were affected by the material build-up associated with glue, resin and paper particulate, or corrosion attack from bleach. The thick surface foam also affected non-contact ultrasonic sensors, and a stand-pipe installation was not possible due to the material build-up. For these reasons, Flowline suggested the use of non-contact pulse radar which is unaffected by most process variables including surface foam.


Here, an EchoPulse pulse radar level transmitter is bracket mounted to the sidewall of their foaming wastewater basin. The rugged IP68 sensor was easily configured by its push button display module (not shown) and the 4-20 mA signal is connected to their PLC.

LU28/LU29/LR15

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When a North American industrial laundry company needed reliable level measurement in their water bulk storage tanks, they turned to Flowline. Industrial launderers clean large quantities of fabrics such as linens, tablecloths and uniforms for their customers under service contract. Water and wastewater treatment represents up to 50% of their total operating costs, making water efficiency and conservation critical to their success. At this Minnesota laundry facility, the tunnel washing process is fed by hot and cold water contained in metal bulk storage tanks. Water, first passes through the boiler where it’s heated up to 160° F before entering the hot water storage tanks.There, steam continuously rises off the water surface, resulting in heavy, dripping condensation throughout the tank. For this reason, Flowline suggested the use of non-contact pulse radar sensors (that are unaffected by steam and condensation) in the hot water tanks, and ultrasonic sensors (that are more cost effective) in the ambient cold water tanks. The result is reliable and cost effective level measurement. Here, an EchoPulse 26 GHz pulse radar level transmitter (top) and EchoSonic ultrasonic level transmitter (bottom) are installed over the hot and cold water storage tanks in adjustable side mount brackets. The two-wire, 4-20 mA signal outputs are connected to the PLC for inventory monitoring and alarms.

LR25

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When this Southeast power plant needed reliable level measurement in their lime slurry mix tanks, they turned to Flowline. Lime is widely used to remove acidic gas pollutants such as sulfur dioxide from the flue exhaust streams of coal-fired electric power plants. Exhaust enters the flue from the bottom of the tower and flows upward through a dense shower of lime slurry. There, sulfur dioxide is absorbed by the lime and precipitated as wet calcium sulfite, which is often converted to gypsum and sold as a safe by-product. To begin, lime powder and water drops into the tank, raising the level from 1? to 6?, filling the remaining air gap space with suspended dust powder. Then, the mixer turns on creating heavy agitation while the slurry is blended. Finally, the mixer turns off, the slurry is vacuum pumped out and the process starts over. Due to the presence of powder, agitation and vacuum, Flowline suggested the use of pulse radar sensors which are unaffected by such process variables. The result is reliable lime slurry level measurement. Here, an EchoPulse 6.3 GHz pulse radar level transmitter is installed on the lime slurry mix tank. The two-wire, 4-20 mA signal output is connected to the PLC for control.

LR15

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When Colgate needed a reliable way to measure their soap bulk storage tanks, they turned to Flowline. The company washes their production equipment between manufacturing runs, and the ready supply of cleaning and disinfectant agents is critical to their process. Soap has been a level measurement challenge for Colgate, due to its extreme tendency to coagulate and foam. Contact level devices such as float, capacitance or pressure sensors, fail over time due to clogging material build up. Non-contact ultrasonic sensors fail when the soap is agitated and foams (absorbing the acoustic signal), which can occur during the tank filling or emptying process. For these reasons, Flowline suggested the use of non-contact pulse radar sensors, whose RF signal is unaffected by most surface foam conditions. The result is reliable liquid soap level measurement. Here, an EchoPulse 26 GHz pulse radar level transmitter is mounted on the top of each soap storage tank. The two-wire, 4-20 mA signal output is connected to the PLC for inventory monitoring and alarms.