Pentair Flow Switch with Magnet | Commercial IntelliChem Chemical Controller | 754000440

The Pentair Flow Switch with Magnet (754000440) is the OEM replacement flow switch for the IntelliChem Flow Cell, designed to confirm water movement before the chemical controller activates dosing.

The flow switch monitors water flow through the IntelliChem flow cell and signals the controller to enable chemical injection only when flow is confirmed. This prevents dry dosing — a condition where acid or oxidizer is injected into a stagnant line, which can cause localized chemical concentration, equipment damage, and inaccurate water chemistry readings. When the flow switch fails or loses its magnetic trigger, the IntelliChem controller will typically display a flow fault and suspend dosing until the switch is replaced.

Specifications

Fits Into

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Pro Tip

Before ordering, confirm the part number printed or molded on your existing flow switch matches 754000440. The flow switch and its magnet work as a paired assembly — if either component is damaged or missing, replace the complete unit as listed here. A flow switch that intermittently triggers false flow faults is often caused by a weakened magnet rather than a failed switch body; replacing the full assembly addresses both failure modes in a single service visit.