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Biodiesel Flow Meter 1/2 Inch Small Batch Additive Blending Controls
Quick Answer: A 1/2 inch (DN15) Coriolis mass flow meter gives you direct mass flow, density, and temperature for accurate biodiesel additive blending. It handles small batch injections from 0.2 kg/h up to 100 kg/h with repeatability under ±0.1%. Silver Automation Instruments supplies these meters with ATEX, 4-20 mA HART, and fast support in Southeast Asia, Africa, and Latin America.
Why Additive Blending Needs a Small Flow Meter
Biodiesel producers mix additives like antioxidants, cold flow improvers, and methanol in very small doses. A 1/2 inch pipe is standard on these injection lines. The additive flow rate often sits between 0.5 and 50 kg/h. Measuring such a low flow with a turbine meter is risky. Viscosity changes from 2 cP to 10 cP will shift readings. A Coriolis meter does not care about viscosity. It measures mass directly. This means your blend ratio stays correct even if the additive temperature swings from 20 °C to 60 °C.
A Real Biodiesel Plant Swapped a Turbine Meter
In 2023 a biodiesel manufacturer in Luzon, Philippines, replaced a small turbine meter on their antioxidant line. The additive was dosed at 0.8 percent by mass. Their turbine meter drifted 3 percent after six months because the internal gears wore out. After installing our Silver Instruments DN15 Coriolis flow meter with 316L wetted parts and PTFE lining, the dosing accuracy improved to better than 0.2 percent of reading. The plant team now checks density and temperature on the local display without extra sensors.
What to Look for in a 1/2 Inch Biodiesel Flow Meter
DN15 size means small line connections. We often use 1/2 inch NPT or tri-clamp fittings. The meter must handle low flow rates down to 0.2 kg/h. Our Coriolis tube material is SS316L, which resists biodiesel and common additives. Output options include pulse, 4-20 mA HART, and RS485 Modbus. If your blending skid sits in a hazardous area, we supply ATEX Zone 1 or IECEx certified meters.
Here is the thing
Budget and Lead Time for a Biodiesel Flow Meter
We are a direct manufacturer, not a trader. A 1/2 inch DN15 Coriolis mass flow meter for biodiesel blending starts around USD 2,800 ex-works. Oval gear meters for additives start from USD 580. Lead time is 3 to 4 weeks. We ship to Malaysia, Vietnam, Thailand, Mexico, Brazil, Nigeria, South Africa, and many other countries by DHL or air freight.
FAQ: Biodiesel Flow Meter 1/2 Inch Small Batch Blending
Q1: Can I use a 1/2 inch oval gear meter for biodiesel additives?
Yes, if the additive viscosity stays above 2 cP and flow rate is steady. But for trace dosing under 1 kg/h we recommend Coriolis for better accuracy and no internal slip.
Q2: What output signals do your meters provide?
Standard is 4-20 mA HART plus pulse. Optional RS485 Modbus RTU. The meter needs 24 VDC power.
Q3: Do you have ATEX certification for biodiesel blending skids?
Yes. We offer ATEX Zone 1 Ex d or Ex ia versions. Provide your zone classification and gas group when you send an inquiry.
Q4: How do I deal with air bubbles in the additive line?
Coriolis meters can detect two-phase flow. Our transmitter has an empty pipe detection alarm. You can also install a small air eliminator upstream.
Q5: What is the typical delivery time to Nigeria?
We ship to Lagos within 4 weeks after order confirmation. Air freight is the fastest option. We handle all export documents.
Send us your pressure (bar), temperature (°C), pipe size (DN), and flow range. Our engineers will select the right 1/2 inch meter for your biodiesel additive blending controls. See our Coriolis flow meter list at flow-meter.com.au for datasheets and full specifications.
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