Macnaught’s Industrial Flow Meter Portfolio includes Oval Gear and Turbine Flow Technologies. We carry a significant inventory of meters, displays, and accessories in our Ontario facility.
Macnaught FCM-MX Flow Meter
Macnaught FCM-MX Flow Meters offer our full volumetric flow range in sizes ¼” thru 4” and flow ranges from .13 GPH to over 320 GPM with temperature compensation.
Designed specifically for high accuracy Diesel Fuel Consumption Measurement applications. Macnaught continues to lead the industrial market in the DFM segment and has since 1964. Our patented precision Oval Gear design coupled with the legendary MX Series Flow Meter platform have been installed in tens of thousands of fuel measurement projects around the globe.

Utilize the FCM-MX Flow Meter package as a key instrument component for Green House Gas & Carbon Footprint reduction programs
Measure high fuel burn engines accurately for efficient fuel ordering
Monitor engine health
Manage fuel consumption trends

System Description

Supply Meter installed on the fuel line supply side of engine

Return Meter installed on the return fuel side of engine

F127 Flow Computer wires to both supply and return Meter  ( requires 24VDC Power )

Applications:

Generator Fuel Consumption
Drilling Platform Diesel Fuel Consumption
Fracking Engine Diesel Fuel Consumption
Hospital Emergency Power Fuel Consumption
Boiler and Furnace Fuel Consumption
Mining Equipment and Mining Truck Fuel Consumption
Rail Engine Fuel Consumption
Marine Engine Fuel Consumption
Large Diesel Fuel Burn Equipment

Principle of Operation
The measuring element of an oval gear meter consists of two high-precision splined oval-shaped gears (Rotors).

The gears are driven by the flow of the media and “mesh” together. In the presence of flow, exact known defined volumes of fluid are swept through the meter per each rotor rotation.

As flow increases, so does the rotational speed of the Rotors.

The number of revolutions is a precise highly accurate measure of the fluid that has passed through the meter. Regardless of viscosity, pressure, or temperature.

Each “active” Rotor rotation creates a pulse and is detected by a sensor. Each meter is individually calibrated per ISO 17025 standards to 0.1% accuracy

METER FLOW 

 
FCM-MX Meter Quick Specs
The Macnaught FCM-MX Oval Gear Flow Meter Includes:

Low Pressure Drop typically .5 to 2 psi
No Flow Conditioning Required – put the meter where you need it
Volumetric Accuracy  .5% of Flow
Repeatability of .03%
Meter Body Machined From Solid Billet
Precision Designed Rotor
Fully Potted Electronics with 2 Hall effect outputs ( 1 Active and 1 Spare )
5 Meters of M8 6 Pin right Angle Cable IP67 rated

F127 Differential Flow Computer Includes:

IP67 ( NEMA Typ4 4X ) Rated Enclosure
Accepts Two Pulse and Two PT100 Inputs
Displays Compensated Consumption Rate, Total & Accumulated Total
Supply & Return Line Displays Temperature and Compensated Flow rate
Requires 8-24VDC Power
Outputs include (1) 4-20mA and (1) Open Collector Output
Optional RS485 Communication available

Macnaught FCM-MX Quick Specifications:

Model
Size
Flow Range
Max
Pressure
Max Temp
PPS Rotors
Max Temp Peek /SS Rotors *Remote display only

MX06
¼”
.13-26 GPH
1,000 PSI
176F
248F SS Only

MX09
¼”
4-132 GPH
1,000 PSI
176F
248F SS Only

MX12
½”
.5-8 GPM
2,000 PSI
176F
248F SS Only

MX19
¾”
.8-21 GPM
2,000 PSI
176F
248F SS or PEEK

MX25
1”
1.6-32 GPM
2,000 PSI
176F
248F SS or PEEK

MX40
1.5”
2.6-66 GPM
1,500 PSI
176F
248F SS or PEEK

MX50
2”
4-132 GPM
1,200 PSI
176F
248F SS or PEEK

MX75
3”
5-194 GPM
175 PSI
248F
248F AL Only

MX100
4”
31-317 GPM
175 PSI
248F
248F AL Only