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Allison Engineering

Innovative Solutions for
Process Control

Flow Switches / Monitors



The FLT93S and FLT93F are Thermal flow switches with two different sensor designs. The “S” style is a heavy duty, rugged design typically used for liquids and slurries. Whilst the “F” version is our fast response sensor and used mainly for gas applications.

Customer can choose from a wide variety of materials, process connections and sensor lengths for a truly bespoke configuration.

Key Features

  • ATEX certified / SIL2 rated
  • 316  / Hastelloy / Titanium wetted parts
  • Process temperatures up to +450°C
  • Customer specified sensor lengths
  • Screwed or flanged process connections
  • Fully adjustable alarm set points