Macnaught M Series Meter with Mechanical Display

The Macnaught M series range of positive displacement oval gear flowmeters offer flexibility and reliability with their robust design. Macnaught Meters with the Mechanical display range in sizes from 1/2″ to 4″ dia. with G threaded connections with optional flanges.  They are constructed with aluminum or stainless steel bodies and aluminum, stainless steel or PPS rotors with applicable seals. Like all Macnaught Positive Displacement Flowmeters they are unaffected by variations in temperature, viscosity or pressure and they will always provide consistently accurate and reliable measurement of flow for all clean liquid applications.  Images opposite shows meter with heavy duty and standard registers.


The Macnaught M050-1S4 Mechanical Meter is part of the original M series meter range. Great for when no power is available. The cast stainless steel construction of this M Series 2″ mechanical flow meter is suitable for flows between 15 – 500 L/min, providing highly accurate flow metering performance. The M Series offers ±1.00% accuracy of true reading and repeatability of ±0.03%. The installation requires no flow conditioning and has temperature capabilities to 80 °C.

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