Stem Mounted Multi-Point Level Switch

FLE/FLR

Custom Multi-Point Level Control

The FL Series Stem Mounted Multi-Point Level Switches provide customizable, multi-point liquid level detection for applications requiring precise linear level measurement in tight spaces. These vertical float switches operate along a stem, unlike suspended float switches that need more room. The FLE and FLR models are designed for custom configuration, allowing users to choose switch types, float materials, and stem options for their specific needs.

  • FLE Model: Up to 3 switch points
  • FLR Model: Up to 7 switch points
  • Custom Configurations: Custom-configurable switch types, float materials, and stem options
  • Small Space Measurement Capabilities: Vertical float switch design for tight-space liquid level measurement
  • Max length: 153 inches
  • Switch ratings: 20 VA, 50 VA, or 180 VA
  • Operating temperature: -40 to 212°F
  • Flexible Output Options: Compatible with NO/NC resistive outputs

  • FLR: 7 Switch Points
    • Min. distance between levels: 3 inches (76 mm)
  • FLE: 3 Switch Points
    • Min. distance between levels: 2 inches (51 mm)
  • Switch Accuracy: ± 1/16 inch (1.6 mm)
  • Switch Hysteresis: 0.06 inches (1.5 mm)

Operating Temperature: -40º to 212ºF (-40º to 100ºC)

  • Switch Rating:
    • FLE: 20 VA, 50 VA
    • FLR: 50 VA, 180 VA
  • Max Current: 0.5 A AC
  • Max Voltage: 220 VAC
  • Maximum Stem Length:
    • FLE: 48 inches (1220 mm)
    • FLR: 153 inches (3890 mm)
  • Stem Diameter:
    • FLE: 5/16 inch (8 mm)
    • FLR: 0.5 inch (13 mm)
  • Cable Entry:
    • FLE – Aluminum Housing: 3/4 inch NPT
    • FLE – Nylon Housing: 1/2 inch NPT
  • Wetted Material: 316L Stainless Steel
  • FLE – Aluminum Housing: NEMA 4X, IP68
  • FLE – Nylon Housing: IP65
What are the FLE and FLR Series level switches?

The FLE and FLR Series are stem-mounted, multi-point float level switches that provide customizable solutions for monitoring liquid levels. They are designed to offer up to seven switch points along a single sensor, allowing for precise control and monitoring in applications with tight space constraints.

Unlike cable-suspended float switches that require ample space to function, the vertical design of the FLE and FLR Series allows them to operate efficiently along a probe or stem. This linear measurement approach makes them ideal for environments where space is limited.

Both series are made-to-order, offering customization in switch configurations, float types, and materials. This ensures compatibility with specific application requirements, providing tailored solutions for diverse industrial needs.

The FLE and FLR Series can accommodate up to seven switch points on a single sensor. This feature enables comprehensive monitoring and control over multiple liquid levels within a system.

These switches are suitable for a wide range of applications, including small or large batch chemical handling and storage, process reservoirs, and large storage tanks. Their customizable design and compact form factor make them versatile for various industrial settings.

SWITCH POINTS

NO/NC Switch, Up to 4 NO/NC, Up to 7 NO/NC

ENCLOSURE PROTECTION

IP65, IP68, NEMA 4X

INDUSTRY

Chemical, Industrial Automation, Oil & Gas, Water & Wastewater

PROBE LENGTH

1' – 12.5', 1' – 4'

SWITCH TYPE

Stem Mounted