STEAMTEAM May Newsletter
McDonnell & Miller Frequently Asked Questions
Cast Iron or Steel? The Receiver is tailored for the application.Learn More
Liquid Flow Switches
The flow of liquids in pipelines plays an important role in industry and commerce. Under most circumstances it is essential to know whether or not there is a flow in a pipeline, and to act upon that knowledge. A complete line of Liquid Flow Switches has been developed for a wide range of applications and literally hundreds of uses.Learn More
Air Flow Switches
McDonnell & Miller Air Flow Switches sense air flow or no air flow by responding only to velocity of air movement. They provide a positive and economical way to detect change or loss of air flow velocity caused by closed damper or fan inlet, a loose fan wheel, a slipped or broken fan belt, a dirty or clogged filter, or an overload on a fan motor switch.