Solenoids introduces different types of solenoids and their uses. Solenoids use magnetic induction to produce linear motion. Common solenoid types are direct action, plunger, bell-crank, and clapper.

Editor’s Note: This is the fifth part in our series of articles on cold rooms. Read Part 1 here: Part 1 —Cold Rooms: An Introduction. As with any refrigeration system, controlling the flow of ...