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MadisonSensor adds FS3000 and FS4000 flow switches in US
17 June 2026

MadisonSensor adds FS3000 and FS4000 flow switches in US

MadisonSensor has expanded its Flow Switch Series with the introduction of the FS3000 and FS4000 models. The new switches are designed to give engineers more installation flexibility across liquid flow monitoring applications.

Flow switches detect the presence or absence of flow and trigger signals to protect equipment, maintain process continuity, and support proper system operation. They are commonly used to verify pump performance, prevent dry running, and safeguard cooling and process systems.

The FS3000 uses a straight-through, inline body design for applications requiring a consistent, unobstructed flow path. Its compact form factor supports installation in space-constrained environments, while multiple wetted material options are intended to support compatibility with industrial liquids.

The FS4000 uses an angled body configuration for systems with tight space constraints or challenging piping layouts. MadisonSensor said the design can reduce the need for additional fittings or system modifications and is built for higher-duty or more complex systems.

“Customers are looking for greater installation versatility without sacrificing reliability,” said John Hurd, Vice President of Sales & Marketing at MadisonSensor. “With the FS3000 and FS4000, we’re giving engineers practical options for both straightforward and complex piping designs while maintaining the performance consistency they expect from MadisonSensor.”

The FS3000 and FS4000 join the existing FS1000 and FS8000 models. Both product lines are now available through MadisonSensor and its authorized distribution partners.
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