Flowline AU18-4243-A Switch-Pak Level Switch | Liquid Level Control

Flowline AU18-4243-A Switch-Pak Level Switch

The Flowline AU18-4243-A is a Level Switches with Compact Junction Box designed for industrial liquid-level measurement, monitoring or control applications. Use the exact model number when comparing replacement or new-installation requirements, because connection, output, range and enclosure options can vary across Flowline configurations.

Key Product Details

• Accuracy: +/- 1mm in water
• Wetted Material: PP
• Process Mount: 2" NPT (US)
• Supply Voltage: AV16: N/A, AU18: 12-36 VDC, AZ18: 12-30 VDC
• Enclosure Rating: NEMA 4X (IP65)
• Sensor Technology: Ultrasonic, Contacts SPST relay
• Output: and a compact junction box for integral wiring termination
• Length: 6in to 10ft (15cm to 3m)
• Repeatability: +/- 0.5mm in water
• Orientation: +/- 20º vertical

Before purchase, compare the complete model code with the application requirements. Check tank dimensions, process connection, wetted materials, power or signal needs, measurement range and environmental conditions where those values apply. This helps prevent selecting a similar-looking Flowline model with a different configuration.

Application and Installation Planning

For replacement work, record the existing model number and wiring or mounting arrangement before removal. For new projects, review the documented installation guidance and leave adequate clearance around the sensing area. Commission the device using the applicable Flowline instructions and verify the output or switching behavior before returning the process to normal operation.

Why Model Verification Matters

For maintenance teams, integrators and OEM users searching for Flowline AU18-4243-A, the model-specific identification makes it easier to match the product to a documented Flowline level-control system without relying on appearance alone.