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With a next-generation, multi-electrode sensor packaged in an insertion-style configuration suitable for hot-tap installation, the precision Marsh Multi-Mag Flow Meter from McCrometer eliminates the costly cut-and-splice operations and system shutdowns required with full-bore meters. At the same time, the flowmeters fit in tight, crowded equipment areas with limited pipe straight-run availability.
The Marsh Multi-Mag Flow Meter is the only multiple-point, insertable flowmeter on the market today. It is particularly cost-effective for large line-size applications. In comparison, the total installed cost of tube meters increases dramatically as the nominal pipe diameter increases because of greater materials costs and more complex installation. This makes the flowmeter a lower cost solution in most large transmission line applications.
The flowmeter’s advanced streamline, multi-electrode sensor design compensates for real world variable water flow profiles, including low-flow conditions. Multiple electrodes located across the Multi-Mag’s entire sensor body continuously measure and indicate the average flow rate. It is highly accurate, repeatable and stable with virtually no drift that requires field recalibration. There’s almost no pressure-drop either, which reduces plant pump energy requirements.
The Multi-Mag is available for service in line sizes from 4 to 120 in., providing bi-directional or forward flow only depending on the specific model. Accuracy is ±1% of reading ± zero stability from +0.3 to +20 ft/s, and repeatability is 0.20% of range. The Multi-Mag’s highly stable flow sensor comes pre-calibrated from the factory and requires virtually no recalibration.
With no moving parts, the flowmeter’s multi-electrode sensor contains nothing to wear or break, and it is generally immune to clogging by sand, grit or other debris. It is built to demanding industrial standards with heavy-duty materials for a long life.
The Multi-Mag supports liquid flow measurement requirements in municipal and industrial water treatment. Typical applications include distribution, effluent, filter balancing and backwash, pumping stations and UV dosing. It is ideal for district energy facilities in cooling water, chilled water and HVAC applications, as well as numerous processes found in food/beverage, electric power generation, chemical processing and pulp/paper plants.