Macnaught MX50 Series Model 2” Digital Flow Meter
Macnaught MX50 Series Model 2” Digital Flow Meter

Macnaught MX50 Series Model 2” Digital Flow Meter

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Macnaught MX50 Series Model 2” Digital Flow Meter is suitable for flows between 4-130 GPM. The 2” Digital Flow Meters have an accuracy of +/- 0.5% and provides exceptional levels of reliability and durability.

Macnaught’s Positive Displacement Flow Meters are suitable for a wide range of industrial applications including fuel and oil distribution, corrosive chemical, solvent measurement and high pressure applications to name a few. Macnaught offers Positive Displacement Flow Meters featuring Oval Gear technology.

The measuring principle includes two high precision toothed oval gears, which are driven by the flow of the medium and mesh with each other: in presence of a flow, defined volumes of fluid are transported through the meter for each rotation of oval gears pair. As the flow rate increases, so does the rotational speed of the rotors.

The number of gear rotations is a measure of the amount of fluid that has passed through the meter; each rotation is detected by a sensor and the volume is calculated using a conversion factor (K factor). Figure 1: Macnaught Positive Displacement Flow Meter operation.

Macnaught MX50 Series Features

  • Latest Meter Technology
  • Modular Design allows for design flexibility
  • Solid Billet Construction
  • Programmable Digital Display w varied output options


  • High accuracy and repeatability
  • High accuracy and repeatability
  • Suitable for viscous fluids
  • Cost-effective
  • Accuracy unaffected by changes in viscosity
  • Requires minimal maintenance
  • Ease of installation
  • Exceptional turn-down ratio
Another Article:

  • Macnaught Type A Standard Pulse Flow Meter
  • Working Principle of Flow Meter
  • How to Choose a Flow Meter
  • Models and Types of Flow Meter
  • Sound Velocity of Material
  • Principle Working of Coriolis Mass Flow Meter

Macnaught MX50 Series Specification

Materials of Construction
Meter Body Aluminium (6061) Aluminium (6061) Stainless Steel (316)
Rotor PPS Aluminium (6061) PPS
  Stainless Steel (316)
Seals Fluorocarbon (FKM) PTFE encapsulated (FEP) PTFE encapsulated (FEP)
Technical Specifications
Operating Temperature -40 – 80ºC -40 – 120ºC -40 – 80ºC (150ºC with high temp. rotors)
Range -40 – 176ºF -40 – 248ºF -40 – 176ºF (302ºF with high temp. rotors)
Max. Operating 1200 psi 1200 psi 1200 psi
Pressure 82 Bar 82 Bar 82 Bar
Accuracy +/- 0.5% +/- 0.5% +/- 0.5%
Repeatability +/- 0.03% +/- 0.03% +/- 0.03%
Nominal K-Factor 25.29 Pulses/Gallon 25.29 Pulses/Gallon 25.29 Pulses/Gallon

Ref: macnaughtusa.com

Download Data Sheet: Series MX50 2” Digital Flow Meter

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