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Vegetable Oil Flow Meter 1/2 Inch Small Batch Precision Dispensing
Quick Answer: For edible oil batching and filling of small containers, a positive displacement oval gear meter delivers repeatable accuracy within ±0.5%. Silver Instruments supplies a 1/2 inch DN15 oval gear flow meter with pulse and 4-20 mA output, built for dispensing 1 to 30 litres per batch. This meter handles vegetable oil viscosities from 1 cP to over 1000 cP without drift or slippage.
Why an Oval Gear Meter for Vegetable Oil Batching
Positive displacement meters capture fixed volumes between two oval gears, so every rotation counts a precise amount of fluid. Vegetable oil acts as a natural lubricant, which means an oval gear meter experiences almost no internal slip. In practice, most food engineers we work with do not even consider turbine or ultrasonic meters for oils above 50 cP. We have seen this on customer sites many times. A coconut oil processing plant in Malaysia used a turbine meter that gave unstable readings below 5 L/min. The moment they switched to a Silver Instruments OGM-DN15 oval gear meter, readings stabilised. The meter held ±0.5% accuracy from 0.5 L/min up to 30 L/min, and overfill waste dropped by 90% in the first week.
Key Specifications for 1/2 Inch Precision Dispensing
The OGM-DN15 meter body is machined from stainless steel 316L. Gears are PEEK and seals are PTFE as standard. All wetted parts meet FDA and 3-A requirements for food contact. Flow range covers 0.5 to 30 litres per minute at viscosities up to 1000 cP. For thinner oils below 5 cP, minimum flow drops to 0.2 L/min. Standard output is an NPN open-collector pulse signal. You can add an internal 4-20 mA HART module for direct connection to your PLC or DCS. Process connections are 1/2 inch female BSPT or NPT threads. Operating temperature spans from -20 °C to 120 °C, and pressure rating is 40 bar. Every meter leaves our facility calibrated with sunflower oil and includes a certificate traceable to national standards.
Real-World Example: Sesame and Soybean Oil Dispensing in Vietnam
Last year a small food manufacturer in Vietnam needed a meter to fill 5-litre bottles with sesame and soybean oil blends. They had relied on a gear pump with a timer, but fill errors reached ±20 mL. They installed our OGM-DN15 oval gear meter together with a local batch controller and a pneumatic shut-off va
How to Get a Quote and Select the Right Meter
Different vegetable oils need different wetted materials and seal options. For olive oil, palm oil, coconut oil, or blended edible oils we normally recommend the OGM-DN15 with PEEK gears. For crude oils or oils containing fine solids we can supply hardened steel gears. To receive an accurate quote, send us your oil type, viscosity at working temperature (cP), batch volume per cycle (litres), pipe or connection size, and preferred output signal. Also tell us if you need a local display or a standalone batch controller. We reply within one business day with a datasheet and price in AUD or USD.
Frequently Asked Questions
Can the meter handle hot vegetable oil during filling?
Yes. The standard meter with PTFE seals works continuously up to 120 °C. For frying oil at higher temperatures, ask us about a high-temperature version with FKM seals.
What is the minimum batch volume with a 1/2 inch meter?
The minimum recommended batch is 0.1 litre. Below that, start-stop transients reduce repeatability. For 50 mL shots we suggest a smaller DN6 meter instead.
Is this flow meter compatible with my PLC?
Yes. The standard pulse output connects directly to most PLC high-speed counters. The optional 4-20 mA HART module allows analog integration and remote monitoring of flow rate and total.
How often does the meter need recalibration?
In vegetable oil service, the oval gear meter stays stable for 12 to 24 months. Abrasive wear is negligible. We offer annual recalibration service at our Malaysia or Australia workshop.
Can you supply with food safety certificates?
We provide material traceability certificates and FDA compliance statements for all wetted parts. If you need a 3-A certificate, specify it during inquiry. Standard certificates come at no extra cost.
Find technical drawings and more application details on our website flow-meter.com.au. Ask our engineers about integrating the OGM-DN15 into your filling machine or compact batch skid.
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