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New Low Flow Controller with Proportional Control Valve

Press Release Summary:

  • Controls and measures the flow rate of either liquids or gases inline by adjusting the valve
  • Measures liquid flow in low flow ranges from 0.03 cc/min and 0.0017 SCFM for gases
  • Flow rate setpoint is set by adjusting an onboard potentiometer or via an external 0-5V analog input


Original Press Release:

Intek Inc. Launches Low Flow Controller

Westerville, OH – June 6, 2021 – Intek Inc. is excited to announce the launch of the Rheotherm® Model 210 Low-Flow Controller - the newest addition to their line of flow instruments.

The Rheotherm Low-Flow Controller consists of a standard Rheotherm Model 210 Flow Meter with an integrated proportional control valve. The Flow Controller can measure and control the flow rate of either liquids or gases inline by continuously adjusting the valve to maintain the measured flow to a user-determined setpoint. The flow rate setpoint is set either by adjusting an onboard potentiometer or via an external 0-5V analog input.

The Rheotherm Low-Flow Controller utilizes the thermal mass principle for highly accurate and repeatable measurement of the fluid through an unobstructed flow path through the sensor. The instrument includes temperature compensation and accounts for pressure variations making it compatible with a wide variety of processes and fluids. A unique characteristic of the Rheotherm Flow Controller is the ability to measure liquid and gas flows in very low flow ranges from 0.03 cc/min for liquids and 0.0017 SCFM for gases.

Typical applications for the Rheotherm Low-Flow Controller include those where precise metering is needed such as dosing of water treatment chemicals, ingredient amounts for foods and pharmaceuticals, and wafer cleaning and thin film deposition for semiconductors.

The Rheotherm Low-Flow Controller may be the perfect solution to your low flow measurement and control application. Visit for more information.

About Intek, Inc:

Intek, Inc. was founded in 1976 by Dr. Joseph W. Harpster with the goal of integrating advanced technologies and engineering to solve complex measurement problems. Intek, Inc. works globally across multiple industries, offering custom solutions in Aerospace, Manufacturing, Chemical Processing, Power Generation, Medical, Oil and Gas Production, and many other fields. For media inquiries or additional information, please contact Intek, Inc. at (614) 895-0301 or online at

Media Contact:
Tony Bonina
Intek, Inc.
751 Intek Way
Westerville, OH 43082

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