Metal Tube Rotameter -MT3750 Series Metal Tube Variable Area Flow Meters


  • Low flow ranges: Up to 100 I/h or 26 gph
  • High pressure and temperature rating
  • Compact size
  • Multiple threaded or flanged connections
  • Large, easy-to-read indicator
  • No external power required
  • Optional accessories include needle valve, flow controllers and alarms
  • Available with 4-20 mA flow signal transmitter, and/or reed switch alarm signals or inductive alarms for high/low-flow conditions


  • Engineered for repeatable accuracy in low-flow rate applications with high-pressure or hazardous fluids
  • Stainless steel construction and compact size enables easier installation into tight spaces, hazardous environments or remote areas
  • Compatible with a wide range of liquids and gases
  • Multiple connection types enable use in multiple location in one plant or process
  • Optional alarms, transmitters and limit switch controllers provide added levels of measurement and control
  • Great replacement for glass tube flow meters (same lay length as Sho-Rate Series 1350)


  • Basic liquid or gas flow measurement
  • Rotating equipment flow measurement
  • Process analyzers
  • High-pressure flow on offshore oil platforms
  • Burner control
  • Gas chromatography
  • Chemical injection
  • Purge liquid or gas metering

Metal Tube Rotameter mt3750 Brochure

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Metal Tube Rotameter – Accurate low-flow measurement. Long-lasting performance in harsh environments.

Models 3750C

Need reliable, durable flow measurement in high-pressure, high-temperature or hazardous process settings? The MT3750 metal tube variable area low flow meter from Brooks Instrument is your hard-working answer.

Constructed from high-strength steel.  The MT3750 Series VA low flow meter features a compact design.  Multiple threaded and flange connection options.  Easier to install and integrate into existing plants, as well as a cost-effective replacement for glass tube flow meters. Certified explosion proof, our low flow liquid flow meters also offer optional transmitters or inductive alarms for more advanced flow measurement and process data capture operations.