Case-Drain Monitoring

Aug. 23, 2007
Direct-reading flowmeters monitor changes in the efficiency of pump case drains by keeping tabs on any increase in case-drain flow.

Direct-reading flowmeters monitor changes in the efficiency of pump case drains by keeping tabs on any increase in case-drain flow. Excessive casedrain flow indicates that a pump is beginning to fail.

The Variable Area meter has a 1 to 5-psig pressure drop with an accuracy of 2% of full scale. The device can be installed in any position with no special piping or flow straighteners. The EZ-View polysulfone Variable Area meter provides 5% full-scale accuracy. The Flow Alert reed switch and MR Flow Transmitter are higher-end casedrain monitoring systems. The reed switch automatically signals an alarm if case-drain flow increases beyond a predetermined limit. The switch can automatically open or close electrical circuits, or activate warning lights and audible alarms by connecting to a PLC. MR Flow Transmitters have an onboard digital display and electronic output signal with 4-to-20-mA, and 0-to-5 or 0-to-10-Vdc analog outputs.

Hedland, 8635 Washington Ave., Racine, WI 53406, (800) 433-5263, hedland.com

Sponsored Recommendations

The entire spectrum of drive technology

June 5, 2024
Read exciting stories about all aspects of maxon drive technology in our magazine.

MONITORING RELAYS — TYPES AND APPLICATIONS

May 15, 2024
Production equipment is expensive and needs to be protected against input abnormalities such as voltage, current, frequency, and phase to stay online and in operation for the ...

Solenoid Valve Mechanics: Understanding Force Balance Equations

May 13, 2024
When evaluating a solenoid valve for a particular application, it is important to ensure that the valve can both remain in state and transition between its de-energized and fully...

Solenoid Valve Basics: What They Are, What They Do, and How They Work

May 13, 2024
A solenoid valve is an electromechanical device used to control the flow of a liquid or gas. It is comprised of two features: a solenoid and a valve. The solenoid is an electric...

Voice your opinion!

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