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Level Switches

Level Switch – AX18

Flowline Inc.

  • Ideal for side wall tank mounting
  • Can be installed outdoors
  • Great for corrosive or coating liquids

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Description Vendor

The Switch-Pro AX18 with Compact Junction Box is a reliable liquid level detection system designed for side wall installation, offering high and low level alarms, overflow protection, and low level pump protection. It features rugged polypropylene, Ryton® or PFA sensors for corrosive liquids, a 60VA relay, and a NEMA 4X polypropylene enclosure. Ideal for bulk storage and process tank applications, it is compatible with ultrasonic and vibration sensing technologies. The system is CE IP65 compliant, making it suitable for outdoor installation and applications involving corrosive or coating liquids. It provides accurate level detection with an accuracy of ±1mm in water and repeatability of ±0.5mm in water, with a supply voltage range of 12-30 VDC or 12-36 VDC depending on the model. The compact junction box allows for integral wiring termination and direct connection to PLC/SCADA systems, enhancing its versatility and ease of use in industrial settings.

Use Cases

  • bulk storage and process tank level applications as a high level alarm or low level alarm
  • overflow protection
  • low level pump protection
  • Not relevant to hydrogen.

Capabilities

  • reliable liquid level detection
  • selectable NO or NC relay output
  • installation through the side wall of the tank
  • direct connection to PLC/SCADA
  • outdoor installation
  • corrosive or coating liquids compatibility
Flowline Inc. Flowline, Inc., based in Los Alamitos, California with over 25 years of specialization in level measurement and sensing products, designs, manufactures and markets liquid and solids level measurement and control instruments for chemical, water, wastewater, oil, and dry solid applications across industrial manufacturers, chemical distributors, municipalities, and energy or food providers. The company's advanced sensing technologies include 80-GHz radar, reflective ultrasonic, guided wave, and pulse radar sensors that measure tank inventories, automate tank processes, ensure workplace safety, and protect the environment across diverse liquid and solid asset management applications. Flowline's product portfolio includes dedicated hydrogen peroxide level sensors, transmitters, and switches offering reliable continuous or point-level measurement of hydrogen peroxide in tank, storage, or day-tank applications—relevant to water treatment and disinfection processes that use hydrogen peroxide as an oxidizing chemical rather than molecular hydrogen fuel applications. The company's non-contact, corrosion-resistant radar sensor technology (as demonstrated in a case study for a Canadian meat processor monitoring hydrogen peroxide and peracetic acid disinfectant levels) offers reliable performance unaffected by foam, turbulence, and precipitation in demanding industrial chemical processing environments.
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