Gn Flow Meter is a leading manufacturer of microfluidic measurement and control instruments.
M12AL Micro Oval Gear Flow Meter
2026-10-23
When Fuel Measurement Must Be Exact
Boiler burners are unforgiving. The fuel-to-air ratio determines everything: efficiency, emissions, and operating cost.
Too much fuel – wasted money, excess smoke, environmental violations.
Too little fuel – unstable flame, production losses, safety risks.
The M12AL was built to measure heavy oil and mazout accurately – even when viscosity changes with temperature.
Built for the Fluids That Matter
| Your Challenge | M12AL Answer |
|---|---|
| Heavy oil and mazout | Positive displacement – viscosity has zero effect on accuracy |
| Micro flow rates | 0.3~30 L/min – precise measurement at burner feed rates |
| High pressure | 32 bar – handles pressurized fuel lines and pump pulsation |
| Viscosity changes | Volumetric principle – accuracy independent of temperature-driven viscosity shifts |
| Boiler burner control | Stable output – reliable data for fuel-to-air ratio control |
| Noise-sensitive environments | Low noise emission – smooth gear operation, no high-frequency whine |
| Tight installation spaces | Miniature footprint – fits into compact burner skids |
| Multiple gear materials | PPs for standard fuels, SS316 for aggressive or high-temperature media |
| System integration | 4~26 VDC wide power – direct to your burner controller |
Why Oval Gear – Not Turbine or Orifice
| Meter Type | Limitation | M12AL Advantage |
|---|---|---|
| Turbine | Cannot handle high viscosity, wears quickly | Positive displacement – viscosity-independent, durable |
| Orifice plate | High pressure drop, limited range | Low pressure drop, wide turndown |
| Electromagnetic | Requires conductive liquids – heavy oil is not conductive | Works with non-conductive fuels and oils |
| Ultrasonic | Struggles with viscous, opaque fluids | Direct volumetric measurement – no signal issues |
Key Specifications
| Parameter | Value |
|---|---|
| Product Name | Micro Oval Gear Flow Meter |
| Model | M12AL |
| Accuracy | 0.5% |
| Working Pressure | 32 bar |
| Housing Material | AL (Aluminum) |
| Flow Range | 0.3 ~ 30 L/min |
| Gear Material | PPs / SS316 |
| Power Supply | 4 ~ 26 VDC |
| Working Temperature | -40 ~ 80°C |
| Measuring Principle | Positive Displacement (Oval Gear) |
| Application | Heavy oil, mazout, boiler burner fuel |
What Sets M12AL Apart
| Feature | What It Means for You |
|---|---|
| 0.5% accuracy | Fuel-to-air ratio is precise – combustion efficiency optimized |
| Viscosity-independent | Heavy oil, mazout, resin – readings stay accurate as temperature changes |
| 32 bar pressure rating | Handles pump pulsation and pressurized fuel lines |
| Low pressure drop | Saves pump energy – reduces system load |
| Low noise emission | Smooth gear operation – suitable for enclosed burner rooms |
| Miniature size | Fits into compact burner skids and OEM equipment |
| 4~26 VDC wide power | Direct to your burner controller – no extra power module |
| PPs or SS316 gears | Choose the material that matches your fuel and temperature |
| Aluminum housing | Lightweight, corrosion-resistant, durable |
Typical Applications
| Industry | Application | Why M12AL |
|---|---|---|
| Boiler and Burner | Heavy oil, mazout, fuel oil feed measurement | Viscosity-independent, high pressure, accurate |
| Industrial Furnaces | Fuel oil dosing, combustion control | Stable output, low noise |
| Power Generation | Auxiliary boiler fuel measurement | Reliable, accurate, durable |
| Marine | Bunker fuel, heavy oil transfer | Handles high viscosity, 32 bar rating |
| Petrochemical | Resin, PVA, heavy oil transfer | Positive displacement – viscosity-independent |
| Asphalt and Bitumen | Hot liquid transfer measurement | High temperature capability, accurate |
| OEM Burner Equipment | Fuel system integration | Compact, customizable, wide power range |
One Question
Would you rather guess your fuel consumption – or measure it?
Guessing leads to wasted fuel. Guessing leads to emissions violations. Guessing leads to unstable combustion.
Measurement leads to efficiency. Measurement leads to compliance. Measurement leads to savings.
The M12AL gives you the number you can trust.
Ready to specify the M12AL for your boiler burner?
Contact us with your fuel type, flow range, pressure, temperature, and connection requirements. We'll recommend the right configuration and provide a quote within 24 hours.
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Shanghai Cixi Instrument CO.,LTD was founded in 2008 and is located in Shanghai Songjiang industrial park. We are the professional flow meter manufacture who integrate R&D, production and sales as one manufacturers.
Contact Us
Contact person: Kenny Shao
Contact phone number: +86 18930647859
Email: sales3@gnflowmeter.com
WhatsApp: 86 18930647859
Company address: Room 402 Shuangzi Building B, Caohejing Hi Tech Park, No. 650 Xin Zhu Road, Songjiang District, Shanghai, China Zip code: 201601
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