Products Built to Last

There’s a reason Magnetrol is the industry leader in mechanical buoyancy liquid level switches. The manufacturer of the first magnetic switch designed for liquid level detection, Magnetrol has spent more than 80 years getting switch design right. For example, unlike competitive switch construction, our switch mechanism is completely isolated from the process environment to prevent magnetic interference and protect the integrity of switch activation.

As a result, intelligent design of our switch mechanism has allowed our level controls to provide years of safe, accurate, reliable level control – with many clocking in more than a half-century of trouble-free service.

Today, we continue this tradition by providing world-class design of the magnet, return spring, pivot, and switch components within every mechanical buoyancy switch mechanism.

What can you expect from the Magnetrol Buoyancy Switch Mechanism

• Magnet placed on non-wetted side of pressure boundary to prevent magnetic particles from adhering to magnet and affecting switch action.

• Return springs heat-treated to ensure consistent properties and performance over a vast temperature range.

• Pivot pins machined for precision fit and smooth rotation.

• Mercury-free, high-temperature switches for process temperatures greater than +540 °C.

Contact us today to learn how our incomparable mechanical buoyancy solutions can provide the level control reliability your company needs now – and the quality construction you can rely on for decades of uninterrupted service.