FF Series Side Mount Float Level Switch

FF Series Side Mount Magnetic Float Level Switch

The FF Series is a magnetic float level switch specifically designed for mounting on the side of a vessel where float orientation is horizontal.  It is suitable for industrial use with a wide range of fluids where the float level switch will operate with fluid density as low as 0.25 S.G..

Product Description

The FF series is a side mount magnetic float level switch product line consisting of rugged, industrial grade float level switches using the principles of buoyancy and magnetism to provide high, low and intermediate level detection of fluids with specific gravity ranging from as low as 0.25, thereby ensuring a very wide range of application and use. A change in fluid level can correspondingly cause the float to travel up or down. The FF series side mounted magnetic float level switch product line incorporates SPDT reed switch or SPDT microswitch output and are available in stainless steel or polypropylene wetted materials. Marine certification and explosionproof versions are available.


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  • Wide range of flanged and threaded process connections for side mounting
  • Stainless steel or polypropylene construction
  • Floats for almost any liquid
  • High temperature capability up to 662⁰F (350⁰C)
  • Explosionproof and corrosion resistant versions available
  • Microswitch or reed switch output
  • Marine grade approval units
  • Operating temperature varies based on specific unit
    * -4⁰F~176⁰F (-20⁰C~80⁰C)
    * -4⁰F~212⁰F (-20⁰C~100⁰C)
    * -40⁰F~392⁰F (-40⁰C~200⁰C)
    * -40⁰F~662⁰F (-40⁰C~350⁰C)
  • SPDT (N.O./N.C.) contact arrangement, ratings vary based on specific unit
  • Dual switch available
  • Minimum S.G. = 0.25
  • Various float extension shapes
  • Process connection sizes from 1½” to 6″
  • Threaded or flanged connections available
  • Explosionproof EEx d units available
  • DNR, Llyod’s Register, Germanischer Llyod, Bureau Veritas, ABS marine grade approvals


  • High, low and intermediate float level switch applications for tanks and other vessels
  • Wide range of liquids with minimum density of 0.25 S.G.
  • Side mount on vessel
  • Some top mounting use special float extension shape


  • Water/wastewater
  • Chemical
  • Marine use
  • Many others

FF Series Sales Catalog

FF Series Operation Manual

FF7 Explosionproof Operation Manual

Full Line Products Guide

Product Solutions for Bulk Solid Industries

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