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Coriolis Mass Flow Meter for Botanical Extract and Floral Concentrate Batching
Quick Answer: For botanical extract batching and floral concentrate dosing, a Coriolis mass flow meter with 316L stainless steel wetted parts gives direct mass flow, density, and temperature in one device. It handles viscosity up to 100 cP and flow ranges from 0.5 kg/h to 50 000 kg/h. Silver Automation Instruments supplies these meters with 4-20 mA HART output and Modbus RTU.
Why Mass Flow Matters for Botanical Extracts
Botanical extraction lines often batch rose water, aloe gel, lavender oil, and eucalyptus concentrate. These fluids have different densities. A volumetric meter needs separate density compensation. A Coriolis meter does not need that. It reads mass directly.
In practice, a batch recipe may call for 250 kg of rose water. The meter opens a valve and counts mass. When the target is reached, the valve closes. This gives repeatability within 0.2 percent of rate.
Most engineers skip volumetric correction on these lines. We have seen this on customer sites many times. The Coriolis meter removes one calculation step and one error source.
Common Viscosities and Flow Ranges in Cosmetic Plants
Floral concentrates can be water thin or heavy. Rose water is about 1 cP. Aloe gel may reach 60 cP. Some botanical creams reach 500 cP. A standard Coriolis meter with 316L tubes handles these ranges without special calibration.
Typical line sizes are DN15, DN25, and DN50. Flow rates sit between 5 kg/h for lab-scale extraction and 20 000 kg/h for bulk transfer. Pressure is usually low. Most cosmetic batching skids run below 6 bar. Temperature ranges from 10 to 90 °C during clean in place.
For a DN15 meter, the measuring range is 0.5 to 500 kg/h. For DN25, the range is 2 to 2 000 kg/h. For DN50, the range is 20 to 20 000 kg/h. These are practical numbers for extract batching.
316L Wetted Parts and CIP Compatibility
Food and cosmetic plants run clean in place cycles. The meter must handle hot water, caustic solution, and acid rinse. 316L stainless steel wetted parts are standard for these lines. Some customers choose electropolished tubes. This reduces residue and makes cleaning faster.
If the line runs alcohol based floral extracts, check the gasket material. Silver Instruments uses PTFE or FKM O rings for botanical fluids. This avoids swelling and contamination.
The meter body can be installed in a horizontal or vertical line. Vertical installation helps drain the tube after a batch. This is important for botanical oil batches that leave residue.
Installation Tips for Floral Concentrate Lines
Keep the meter full. Coriolis meters do not tolerate two phase flow. If air enters the line during batch start, the meter may trigger an al
Use a short straight run. Coriolis meters do not need upstream and downstream straight pipe like vortex or ultrasonic meters. But avoid installing directly after a piston pump. Pulsation can disturb the measuring tube at low flow rates.
Mount the meter away from strong vibration. A cosmetic batching skid often has mixers and pumps. Use a rigid support bracket. Do not hang the meter on the process piping alone.
A Customer Case in Southeast Asia
Last year a customer in Indonesia asked us for a meter to batch aloe gel and rose extract into 5 000 liter mixing tanks. The line was DN25, pressure 4 bar, temperature 30 °C during production and 85 °C during clean in place. The batch target was 1 200 kg per tank.
We supplied a DN25 Coriolis meter with 316L tubes, PTFE O rings, 4-20 mA HART output, and Modbus RTU. The meter controlled two valves. The customer reported batch accuracy within 0.3 percent after three weeks. The CIP cycle did not damage the meter during six months of daily use.
That same customer later ordered two more meters for a second line. They used one meter for a floral water transfer line and one for a glycerin based extract.
FAQ
Which flow meter is best for botanical extract batching?
A Coriolis mass flow meter is best because it measures mass directly and handles viscosity changes. It is more reliable than a turbine or oval gear meter for water thin and viscous floral fluids.
Can a Coriolis meter measure rose water and aloe gel without recalibration?
Yes. A Coriolis meter measures mass flow. It does not need density compensation for different fluids. The same meter can switch between rose water and aloe gel with no resetting.
What output signals should I request for a cosmetic batching skid?
Request 4-20 mA HART as the main output. Add RS485 Modbus RTU if the PLC or batch controller needs digital data. Pulse output is optional for totalizing.
How do I size a Coriolis meter for a floral concentrate line?
Send us the fluid name, flow range in kg/h, pipe size in DN, pressure in bar, and temperature in °C. We will recommend a model and provide a quote. For a quick check, DN15 covers 0.5 to 500 kg/h and DN25 covers 2 to 2 000 kg/h.
Is a Coriolis meter suitable for clean in place at 85 °C?
Yes. A standard 316L Coriolis meter tolerates 85 °C clean in place. For higher temperatures up to 150 °C, we supply a high temperature version.
Contact Silver Automation Instruments for a quote. Tel: +86-25-68650347, Whatsapp: +86-25-52155837, WeChat: +86 15365082610. Send your pressure (bar), temperature (°C), pipe size (DN), and flow range (kg/h). We will reply with a model and a datasheet within 24 hours.