Positive Displacement Flow Meter


The DOM series positive displacement flowmeter is the preferred choice for measuring viscous liquids such as lubricating/hydraulic oils, diesel fuels, chemicals, solvents, resins, and pastes.

The Oval Gear meters are positive displacement flowmeters where the passage of liquid causes two oval gears to rotate within a precision measuring chamber and with each rotation a fixed volume of liquid passes through the meter. Magnets embedded within the gears initiate a high resolution pulse train output. The pulse output can be wired directly to process control and monitoring equipment or can be used as an input to instruments supplied with or fitted directly onto the meter.


  • Low, Medium and High Flow Series
  • Flow Ranges From 0.13-9.5 GPH
  • Through 40-660 GPM
  • Line Sizes 1/8" Through 4"
  • Aluminum, Stainless Steel and Ductile Iron Bodies
  • Optional High-Viscosity Rotors on Some Models
Positive Displacement Flow Meter