APG FL Series Stem Mounted Multi-Point Level Switch

APG FL Series Stem Mounted Multi-Point Level Switch is designed to meet demanding customer applications for liquid level sensing in rugged hostile environments. Each FL is manufactured to the users specifications, making it fit to work precisely according to the application requirements.

FLE’s have one, two, or three switches built in 5/16” Ø 316L stainless steel stems up to 48” in length, perfect for precise level control in small vessels. FLR switches use stronger 0.50” Ø 316L stainless steel stems, which allows for lengths up to 153” (12.75 feet), and up to seven switch points.

Custom built, stem mounted float switches The FL series multi-point level switch has up to seven switch points custom configured along a single mount for linear level measurement in tight spaces. Everything on this sensor is made-to-order from switch configurations to float types and materials. It’s hard to beat 7 switch points custom configured to your application from a single sensor.

APG FL Series Customizable

The FL Series multi-point level switch comes made-to-order. From switch configurations to float types and materials, the FL Series switch adjusts to meet your specifications.

Works in Tight Spaces

Unlike suspended float switches that require room to operate, this vertical float switch works along a probe, or stem, for linear level measurement in a tight space.

Up To Seven Switch Points

The FL Series level switch offers up to 7 switch points for increased control and savings. Monitor 7 different levels with a single sensor, and a single mount.


  • Custom tailored to user specifications
  • Long switch life
  • Multiple float styles and specific gravity options
  • Up to seven switch points


Switch Points Up to 7 NO/NC
Custom Configuration
Switch Rating 20 VA, 50 VA, 180 VA
Max Current 0.5 A AC
Max Voltage 220 VAC
Outputs Resistive, NO, NC
Mount & Stem Materials 304 SS, 316L SS
Float Materials 304 SS, 316L SS, Buna
Max Length 153 in.
Certifications CSA General Purpose
Operating Temperature 14 to 212° F

Download Data Sheet: Stem Mounted Multi-Point Level Switch FL

Ref: apgsensors.com

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