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FLOWLINE

Flowline is a manufacturer of level measurement instrumentation for industrial liquids and bulk solids. The company's product line centers on non-contact ultrasonic and radar level sensors, along with the switches, transmitters, and mounting accessories that support them. Flowline devices are used across water and wastewater treatment, chemical processing, food and beverage production, oil and gas, and general manufacturing where continuous or point-level monitoring is required. The product families include ultrasonic level transmitters such as the LU27-01, LU28-01, LU29-01, LU23-01, LU81-5101, and DS14-01, which cover measurement ranges from 49.2 inches up to 393.6 inches. These transmitters operate on 24V DC or 24V AC/DC and provide 4 to 20mA output, with accuracy figures such as ±0.2% of range or 1/8 inch depending on the model. Antenna diameters range from 1 3/8 inches to 3 3/8 inches, and process connections are typically 1-inch or 2-inch NPT. Some models, like the LU23-01, carry an IP68 rating for submersion protection. The LU81-5101 includes an LCD display for local readout. Flowline also supplies mounting brackets, including the LM50-1001 and LM50-1001-1, which are side-mount accessories compatible with specific sensor models such as the LU83-5101 and DX14-01. These brackets provide stable positioning for non-contact sensors in tanks, sumps, and open channels. 3G Electric stocks a selection of Flowline ultrasonic liquid level sensor transmitters and mounting brackets. The inventory includes models with various ranges, antenna sizes, and output configurations to suit different tank heights and process connections. For plant engineers and maintenance managers, 3G Electric provides access to Flowline level sensors with published specifications, including beam width, accuracy, and operating voltage, so that selection can be matched to the application. Procurement specialists can source these instruments through 3G Electric's global distribution network, with support for identifying the correct model number and compatible accessories. The product data available includes manufacturer part numbers, UNSPSC codes, and key technical parameters, allowing for integration into existing control systems and replacement of failed or obsolete units. Flowline's non-contact measurement approach reduces wear and maintenance compared to mechanical float or conductive probes, as there are no moving parts in contact with the media. This makes the sensors suitable for corrosive, viscous, or hygienic liquids where contact-based devices may foul or require frequent cleaning. The ultrasonic transmitters are designed for continuous level measurement and can be configured for 4 to 20mA output to interface with PLCs, SCADA systems, or loop controllers. The mounting brackets ensure proper alignment and standoff distance, which is critical for accurate ultrasonic time-of-flight measurement. 3G Electric's catalog includes Flowline part numbers such as 12U437, 12U421, 12U444, 12U418, 12U439, 12U446, 12U438, and 12U440, representing a cross-section of the ultrasonic transmitter and accessory range. Each listing includes specifications such as range, accuracy, antenna diameter, process connection, and display type, enabling technical evaluation before purchase. For applications requiring level switches or radar-based measurement, 3G Electric can source additional Flowline models beyond the ultrasonic transmitters shown here. The company's role is to supply genuine Flowline components with traceable part numbers and to facilitate procurement for maintenance, repair, and operations (MRO) as well as new installations. By maintaining stock of common models and accessories, 3G Electric aims to reduce lead times for critical level instrumentation. The technical data provided for each product allows engineers to verify compatibility with existing tank geometries, process connections, and electrical interfaces. This supports efficient specification and replacement without the need for extensive re-engineering. Flowline's product documentation typically includes beam width, deadband, and temperature compensation details, which are relevant for accurate ultrasonic performance. 3G Electric makes this information available to assist in proper selection and installation. In summary, Flowline offers a range of non-contact ultrasonic level sensors and accessories for industrial liquid measurement, and 3G Electric supplies these products globally with a focus on technical specifications and part number accuracy.

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About FLOWLINE

Flowline is a manufacturer of level measurement instrumentation for industrial liquids and bulk solids. The company's product line centers on non-contact ultrasonic and radar level sensors, along with the switches, transmitters, and mounting accessories that support them. Flowline devices are used across water and wastewater treatment, chemical processing, food and beverage production, oil and gas, and general manufacturing where continuous or point-level monitoring is required. The product families include ultrasonic level transmitters such as the LU27-01, LU28-01, LU29-01, LU23-01, LU81-5101, and DS14-01, which cover measurement ranges from 49.2 inches up to 393.6 inches. These transmitters operate on 24V DC or 24V AC/DC and provide 4 to 20mA output, with accuracy figures such as ±0.2% of range or 1/8 inch depending on the model. Antenna diameters range from 1 3/8 inches to 3 3/8 inches, and process connections are typically 1-inch or 2-inch NPT. Some models, like the LU23-01, carry an IP68 rating for submersion protection. The LU81-5101 includes an LCD display for local readout. Flowline also supplies mounting brackets, including the LM50-1001 and LM50-1001-1, which are side-mount accessories compatible with specific sensor models such as the LU83-5101 and DX14-01. These brackets provide stable positioning for non-contact sensors in tanks, sumps, and open channels. 3G Electric stocks a selection of Flowline ultrasonic liquid level sensor transmitters and mounting brackets. The inventory includes models with various ranges, antenna sizes, and output configurations to suit different tank heights and process connections. For plant engineers and maintenance managers, 3G Electric provides access to Flowline level sensors with published specifications, including beam width, accuracy, and operating voltage, so that selection can be matched to the application. Procurement specialists can source these instruments through 3G Electric's global distribution network, with support for identifying the correct model number and compatible accessories. The product data available includes manufacturer part numbers, UNSPSC codes, and key technical parameters, allowing for integration into existing control systems and replacement of failed or obsolete units. Flowline's non-contact measurement approach reduces wear and maintenance compared to mechanical float or conductive probes, as there are no moving parts in contact with the media. This makes the sensors suitable for corrosive, viscous, or hygienic liquids where contact-based devices may foul or require frequent cleaning. The ultrasonic transmitters are designed for continuous level measurement and can be configured for 4 to 20mA output to interface with PLCs, SCADA systems, or loop controllers. The mounting brackets ensure proper alignment and standoff distance, which is critical for accurate ultrasonic time-of-flight measurement. 3G Electric's catalog includes Flowline part numbers such as 12U437, 12U421, 12U444, 12U418, 12U439, 12U446, 12U438, and 12U440, representing a cross-section of the ultrasonic transmitter and accessory range. Each listing includes specifications such as range, accuracy, antenna diameter, process connection, and display type, enabling technical evaluation before purchase. For applications requiring level switches or radar-based measurement, 3G Electric can source additional Flowline models beyond the ultrasonic transmitters shown here. The company's role is to supply genuine Flowline components with traceable part numbers and to facilitate procurement for maintenance, repair, and operations (MRO) as well as new installations. By maintaining stock of common models and accessories, 3G Electric aims to reduce lead times for critical level instrumentation. The technical data provided for each product allows engineers to verify compatibility with existing tank geometries, process connections, and electrical interfaces. This supports efficient specification and replacement without the need for extensive re-engineering. Flowline's product documentation typically includes beam width, deadband, and temperature compensation details, which are relevant for accurate ultrasonic performance. 3G Electric makes this information available to assist in proper selection and installation. In summary, Flowline offers a range of non-contact ultrasonic level sensors and accessories for industrial liquid measurement, and 3G Electric supplies these products globally with a focus on technical specifications and part number accuracy.

Common Applications

  • Water and wastewater treatment — Flowline LU23-01 ultrasonic transmitter for wet well level monitoring with IP68 protection.
  • Chemical processing — Flowline LU28-01 non-contact ultrasonic sensor for corrosive liquid level in storage tanks.
  • Food and beverage production — Flowline LU81-5101 with LCD display for local indication of liquid level in hygienic tanks.
  • Oil and gas — Flowline LU29-01 long-range ultrasonic transmitter for level measurement in tall process vessels.
  • General manufacturing — Flowline LM50-1001 mounting bracket for secure installation of LU83-5101 ultrasonic sensors in sumps.
  • Pharmaceutical — Flowline DS14-01 ultrasonic transmitter for accurate level measurement of aqueous solutions in small tanks.

Frequently asked questions

Common questions about FLOWLINE from 3G Electric.

What is the measurement range of the Flowline LU29-01 ultrasonic level transmitter?

The Flowline LU29-01 has a measurement range of up to 393.6 inches (approximately 10 meters). It uses a 2-inch NPT process connection and a 3 3/8-inch antenna diameter. The transmitter operates on 24V DC and provides a 4 to 20mA output with an accuracy of ±0.2% of range. It does not include a local display. This model is suitable for tall tanks or silos where a longer ultrasonic range is required. The non-contact design avoids issues with corrosive or coating liquids that can affect contact sensors.

Are Flowline ultrasonic level sensors compatible with PLC and SCADA systems?

Yes, Flowline ultrasonic level transmitters such as the LU27-01, LU28-01, LU23-01, and LU81-5101 provide a 4 to 20mA analog output, which is a standard signal for PLC, SCADA, and loop controller inputs. The 24V DC or 24V AC/DC power requirement is common in industrial control panels. The 4 to 20mA signal can be scaled to represent the full measurement range of the sensor. For integration, ensure the receiving device has a compatible analog input card and that wiring practices follow the manufacturer's guidelines for shielding and grounding to minimize electrical noise.

What is the purpose of the Flowline LM50-1001 mounting bracket?

The Flowline LM50-1001 is a side-mount bracket designed to secure non-contact ultrasonic liquid level sensors. It is specifically compatible with the Flowline LU83-5101 sensor model. The bracket provides a stable mounting point, ensuring the sensor is positioned correctly over the liquid surface. Proper mounting is critical for ultrasonic measurement because the sensor must have a clear, unobstructed path to the liquid and maintain the correct standoff distance. The LM50-1001 helps maintain alignment and reduces the risk of signal interference from tank walls or internal structures. It is constructed for industrial environments and simplifies installation in tanks, sumps, or channels.

Does the Flowline LU23-01 have an IP68 rating?

Yes, the Flowline LU23-01 ultrasonic level transmitter is rated IP68. This rating indicates protection against dust ingress and continuous immersion in water under specified conditions. The IP68 rating makes the LU23-01 suitable for applications where the sensor may be exposed to temporary flooding or washdown, such as in wastewater wet wells or outdoor sumps. The sensor has a 2-inch NPT connection, a 2 3/8-inch antenna diameter, and a range of up to 216 inches. It operates on 24V DC with a 4 to 20mA output and ±0.2% of range accuracy. No local display is included.

What is the accuracy specification for Flowline ultrasonic level transmitters?

Most Flowline ultrasonic level transmitters in the LU series, including the LU27-01, LU28-01, LU29-01, LU23-01, and LU81-5101, have an accuracy specification of ±0.2% of range. For example, on a 216-inch range model, this equates to approximately ±0.43 inches. The DS14-01 model has a stated accuracy of 1/8 inch (0.125 inches) over its 49.2-inch range. Accuracy can be affected by factors such as temperature gradients, foam, turbulence, and obstructions in the beam path. Proper installation and consideration of the beam width are necessary to achieve the published accuracy in real-world conditions.

Can Flowline ultrasonic sensors measure both liquids and solids?

Flowline ultrasonic sensors are primarily designed for liquid level measurement, as indicated by the product descriptions for the LU and DS series transmitters. However, ultrasonic technology can also be applied to certain solids, such as granules or powders, provided the material surface is relatively flat and not too dusty. For solid applications, the sensor selection may require different frequency or antenna configurations to handle angle of repose and dust attenuation. The models listed here, such as the LU27-01 and LU28-01, are specified for liquid level. For solid level measurement, consult Flowline's product documentation or contact 3G Electric to identify a suitable model.