FPI Mag® Insertion Magnetic Flow Meter

The FPI Mag is specifically engineered for environments where shutting down service is not an option and line sizes are prohibitively large for traditional flanged meters. The primary differentiator is McCrometer’s multi-electrode design, which addresses the “velocity profile” problem that plagues standard insertion meters.

Ideal for trunk mains and distribution lines up to 138 inches. Its NSF-61 certification makes it a standard for potable water systems.

Perfect for power plants, refineries, and paper mills that require high-accuracy flow data for cooling towers or feed water without the massive pressure drop or capital expense of a full-bore meter.

Unlike full-bore flow meters, which require significant footprint and heavy machinery for installation, the FPI Mag can be installed in tight vaults or ceiling-access pipes via hot-tap in a simple 2-inch ball valve.

Install, service, or relocate the meter under full pressure without interrupting service to customers.

The sensor body is hermetically sealed and coated with 3M fusion-bonded epoxy, ensuring longevity in harsh, submerged, or buried environments (IP68 rated).

Compatible with AMI/AMR systems, the FPI Mag supports encoded digital outputs, making it a “future-proof” choice for smart city initiatives.

Unlike mechanical insertion meters (like turbine or paddlewheel), the FPI Mag is immune to clogging from sand, grit, or debris, drastically reducing long-term maintenance.

The FPI Mag is available in battery or solar powered options for forward and bi-directional flow sensors, enabling installation in remote applications without access to power. The Smart Output feature allows the FPI Mag to connect to AMI / AMR systems through an encoded digital output.

While full-bore flow meters offer excellent accuracy reports, their installation on a 48-inch line can cost upwards of 45% more due to pipe cutting, welding, heavy equipment rentals, and service fees. The FPI Mag provides the same data quality with a Hot-Tap installation, meaning zero downtime for your facility while reserving project budgets for large-impact investments.

• ISO 9001:2015 certified quality management system
• NSF/ANSI/CAN 61
• NSF/ANSI 372
• Certified by MET to UL 61010-1
• Certified by MET C22.2 No. 61010-1-04
• NEC & CEC: Class 1, Division 2, Groups A-D, Groups A-D, T5
• NEC & CEC: Class 2, Zone 2, Groups A-D, T5

• Water and Wastewater Treating
• Filter Balancing and Backwash
• Wells and Booster Stations
• UV Stations
• Effluent Wastewater
• Cooling Water
• Feed Water
• Raw Water
• Inlet to Surge Basin
• And More