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Machine Design

Liquid-Level Switches

A line of side and verticalmounted liquid-level switches control electrical circuits in response to changes in the level of a liquid.

The electromechanical devices operate with a float containing a permanent magnet riding on the surface of a liquid. A stem containing a reed switch is actuated by the magnet and guides the float motion. Switches come in brass, stainless-steel, and plastic models.

Whitman Controls Corp., 201 Dolphin Rd., Bristol, CT 06010, (800) 233-4401,

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