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McCrometer has launched the FPI Mag electromagnetic flow meter for municipal water applications such as wells, effluent, filter balancing and backwash, pumping stations and potable water distribution.

The FPI (full profile insertion) Mag is the successor to the company’s Multi-Mag insertion flow meter, a multi-electrode hot tap full-profile insertion flow meter that delivers a continuous total flow profile similar to a full-bore mag meter.

The enhanced design of the FPI flow meter features additional sensing electrodes for increased sensitivity and is now packaged in a heavy-duty 316 stainless steel sensor body for maximum structural integrity.

The sensor is coated with a NSF-certified 3M fusion-bonded epoxy coating for operational longevity.

The FPI Mag with hot tap installation is said to address the ever-increasing need for municipalities to provide uninterrupted service 24/7, and improves process control and ensures delivery accountability at the same time.

The FPI Mag flow meter installs without interrupting service, de-watering lines, cutting pipes or welding flanges.

Installation costs are reduced by eliminating the need for heavy equipment or extensive manpower.

McCrometer said the FPI Mag reduces installed costs by more than 45 per cent in medium and large line sizes.

The FPI Mag meter’s compact insertion design fits in confined spaces with limited access and offers total accessibility.

The flow meter can be removed in pipes under pressure for easy inspection, cleaning, calibrating or verification with McCrometer’s NIST-traceable calibration lab.

It is said to be particularly cost-effective for retrofit applications replacing flow meters or in sites never metered before.

The FPI Mag flow meter’s multi-electrode sensor design compensates for variable flow profiles, including swirl, turbulence and low-flow conditions.

Multiple electrodes placed across the entire sensor body continuously measure and report the average flow rate over the full diameter of pipe.

The FPI flow meter is available for line sizes from 4in to 138in and is claimed to rival the performance of a full bore electromagnetic flow meter.

With highly stable measurement, the FPI Mag features accuracy of +/-1 per cent of reading +/- 0.03ft/sec zero stability from 0.3 to 20ft/s velocity range.

The flow sensor comes pre-calibrated from McCrometer’s NIST traceable calibration lab and requires no recalibration in the field.

With no moving parts and a single-piece design, the FPI Mag’s multi-electrode sensor contains nothing to wear or break, and it is generally immune to clogging by sand, grit or other debris.

The FPI Mag supports liquid flow measurement requirements in municipal water and effluent wastewater treatment.

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