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Sunflower Oil Flow Meter 100 L/h: Continuous Flavoring Injection Control Systems
Quick Answer: For continuous sunflower oil flavoring injection at 100 L/h you need a positive displacement oval gear meter or a micro Coriolis mass flow meter. Silver Automation Instruments supplies 316L stainless steel food grade meters with 4-20 mA HART output and integrated PT100 temperature compensation. You get stable accuracy of ±0.5% or better and eliminate drift that ruins batch taste.
The 100 L/h Challenge in Sunflower Oil Flavoring Lines
Sunflower oil blending operations dose flavor concentrates in a continuous stream. A typical line runs at 80 to 120 L/h. If the flow reading drifts by just 5% the flavor profile shifts. Quality control flags the batch and you dump thousands of litres of oil. This happens more often than factory managers admit. Because sunflower oil viscosity changes from 60 cP at 20°C down to 20 cP at 50°C. A turbine or paddle wheel meter cannot compensate for that swing. You need a meter that measures volume directly regardless of viscosity.
In practice most engineers discover this mismatch only after the first week of production. The pump stroke is fixed. If the meter underreports the oil flow the PLC commands the flavor pump to over-dose. The taste goes harsh or bitter. A food technologist once told us their garlic butter oil line became unsellable because the aftertaste was too aggressive. So the real cost of a cheap meter is not the purchase price. It is the rejected product and the wasted raw material.
Two Meter Types We Recommend for 100 L/h Sunflower Oil
When we analyze a flavor injection line we look at the cleaning method and the additive viscosity. Silver Instruments supplies two proven options for this flow rate. Both give a clean 4-20 mA HART signal that your injection controller can use for real-time closed loop correction.
The first is the SGM series oval gear flow meter. For 100 L/h a DN15 size with tri-clamp connection fits perfectly. The oval gear meter has precision chambers that trap fixed volumes of oil. Accuracy stays at ±0.5% of reading even when viscosity drops with afternoon heat. The meter body incorporates a PT100 temperature sensor as standard. So the transmitter outputs a temperature compensated flow value. No external compensation module is needed. The wetted parts are 316L stainless steel and PEEK gears. These materials comply with FDA 21 CFR for incidental food contact. The pressure drop at 100 L/h is below 0.2 bar. Your existing positive displacement pump will not see extra load.
The second choice is the CMF series micro Coriolis mass flow meter. This works particularly well when you inject a small concentrate flow like 2 L/h into a main sunflower oil stream of 98 L/h. You can install the CMF on the additive line to measure mass directly. It ignores viscosity, temperature, and density shifts. The accuracy is ±0.2% of rate. Wetted surfaces are full 316L with an electropolished finish better than Ra 0.8 µm. That surface finish matters because flavor compounds can cling to rough metal. The smooth electropolish makes CIP and SIP cleaning effective. Output options include 4-20 mA HART and Modbus RTU. You can read mass flow, density, and temperature from one instrument.
Real World Fix in a Southeast Asia Seasoning Plant
We have seen this on customer sites many times. Last year a liquid seasoning manufacturer in Indonesia contacted our Jakarta distributor. They made a cheese flavored sunflower oil for snack seasoning. Their line used a plastic paddle wheel meter on the oil line. Every afternoon when ambient
Installation Notes That Prevent Measurement Noise
Do not install the flow meter at the lowest point of the pipe where air accumulates. Sunflower oil traps tiny air bubbles during transfer and agitation. Mount the meter in a horizontal run with 5 x DN straight pipe upstream. For a DN15 line that means 75 mm of straight section. Use a 60 mesh Y strainer before the meter. Oval gear meters can jam if solid bits from flavor mixers enter the line. Keep the downstream back pressure above 0.5 bar absolute to stop cavitation. Cavitation makes the oval gears spin erratically and the 4-20 mA signal becomes noisy.
For the Coriolis mass flow meter make sure the pipe stays completely full. Even a small gas pocket causes measurement noise that looks like flow fluctuation. Silver Instruments delivers a complete mounting kit with sanitary tri-clamps and EPDM gaskets. The meter head can rotate 360 degrees so the display faces the operator panel without removing the sensor body.
How to Get a Quote with Your Process Data
Do not send an empty inquiry that just says “price for flow meter”. Instead send us your sunflower oil flow rate in L/h, normal operating temperature in °C, pump discharge pressure in bar, pipe size DN, and the hygienic connection type you use. You can choose tri-clamp, DIN 11851, or threaded. Also state if the meter must carry ATEX Zone 1 certification for the flavor blending room. We will send a datasheet and a price for the SGM oval gear meter or the CMF micro Coriolis within one working day. If you meter the flavor concentrate separately please include its viscosity in cP. Contact Silver Automation Instruments via the quote form on flow-meter.com.au.
FAQ on Sunflower Oil Flow Meters at 100 L/h
Can I use a magnetic flow meter for sunflower oil? No. Sunflower oil is non-conductive. A magnetic flow meter requires a fluid with conductivity above 5 µS/cm. Oil has zero conductivity. Use an oval gear or Coriolis meter instead.
What is the pressure rating of the DN15 oval gear meter? Standard rating is 40 bar at 25°C. For lines up to 150°C we supply a variant rated at 25 bar. The pressure rating is laser engraved on the meter body.
Does Silver Instruments offer ATEX certification for flavor injection rooms? Yes. The SGM oval gear and CMF Coriolis series can be certified ATEX II 2G Ex ia IIC T4 for Zone 1. You need to specify this when you request the quotation. We prepare the certificate with the serial number.
How do I clean an oval gear meter between batches? Flush with hot water at 80°C and a mild caustic cleaning solution through the tri-clamp connections. The meter can be opened without special tools. Remove the front cover and inspect the PEEK gears in under two minutes.
What accuracy can I expect with temperature swings of 25°C? The SGM oval gear meter with the built-in PT100 delivers compensated accuracy within ±0.5% of actual volume. A standard positive displacement meter without temperature compensation can deviate up to 1.5% on the same shift. We include the PT100 as standard, not as a chargeable add-on.