Machinedesign 2853 Rotoflow Sm Sm 0

Rotorflow Sensor Monitors Fluid Flow from 0.1 to 12 gpm

Jan. 14, 2011
RotorFlow sensor from Gem Sensors monitors fluid flow from 0.1 to 12 gpm
Access our Reader Service Web site to quickly find and request information on products and services found in the pages of Machine Design.

The RotorFlow transducer from Gems Sensors & Controls, Plainville, Conn. (, constantly measures fluid flow using a static Hall-effect sensor. A magnetic rotor attached to the paddle wheel spins at a rate proportional to flow. The rotor’s spinning magnetic field causes the Hall sensor to generate a series of voltage pulses with a frequency proportional to flow rate. This frequency is converted to an output signal. And the voltage of these signals can range from 4.5 to 24 Vdc.

Inlet and outlet ports range in size from 0.25 to 1.0 in., with flow rates going from 0.1 to 60 gpm. Lower flow rates require an optional low-flow adapter. Accuracy is typically within 7%. Brass and stainless-steel bodies withstand temperatures to 212°F and pressures to 200 psig at 70°F; polypropylene bodies handle temperatures to 180°F and pressures to 100 psig at 70°F. For convenience, the paddlewheel is colored orange, letting users visually verify that liquid is flowing.

© 2011 Penton Media, Inc.

Sponsored Recommendations

MOVI-C Unleashed: Your One-Stop Shop for Automation Tasks

April 17, 2024
Discover the versatility of SEW-EURODRIVE's MOVI-C modular automation system, designed to streamline motion control challenges across diverse applications.

The Power of Automation Made Easy

April 17, 2024
Automation Made Easy is more than a slogan; it signifies a shift towards smarter, more efficient operations where technology takes on the heavy lifting.

Lubricants: Unlocking Peak Performance in your Gearmotor

April 17, 2024
Understanding the role of lubricants, how to select them, and the importance of maintenance can significantly impact your gearmotor's performance and lifespan.

From concept to consumption: Optimizing success in food and beverage

April 9, 2024
Identifying opportunities and solutions for plant floor optimization has never been easier. Download our visual guide to quickly and efficiently pinpoint areas for operational...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!