Oval Gear Flowmeter
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Overview
The Oval Gear Flowmeter is a type of positive displacement flow meter, known for its high accuracy and reliability. It works by using mechanical measuring elements (oval gears) to continuously divide the fluid into known volumetric segments. By counting the number of times these chambers are filled and emptied, it accurately measures the total volume of fluid passing through. It is particularly well-suited for high-viscosity media such as heavy oil, resins, and syrups.
Available in Cast Iron, Cast Steel, and Stainless Steel construction, the meter handles operating pressures up to 6.4MPa and temperatures up to +200℃. Its measurement accuracy is virtually unaffected by changes in fluid viscosity or flow profile, making it an ideal choice for challenging industrial applications where other meter types might struggle.
Features
- High accuracy measurement: ±0.5% or ±0.2% of reading.
- Excellent for high-viscosity fluids like heavy oil, polyvinyl alcohol, and resins.
- Measurement is independent of fluid viscosity changes and flow profile.
- No straight pipe runs required upstream or downstream.
- Direct local display of total flow, with optional pulse or 4-20mA output for remote integration.
- Available in Cast Iron, Cast Steel, and Stainless Steel construction.
Specifications
| Item | Value |
|---|---|
| Nominal diameter | DN10~DN200 |
| Accuracy | ±0.5% (Standard) / ±0.2% (Optional) |
| Body material | Cast Iron, Cast Steel, Stainless Steel |
| Operating pressure | Cast Iron: 1.6MPa Cast Steel: 2.5MPa, 4.0MPa, 6.4MPa Stainless Steel: 1.6MPa |
| Medium temperature | Standard: -20~+80℃ High-temperature: -20~+200℃ |
| Output signals | Pulse, 4-20mA (optional) |
| Explosion-proof grade | Exd IIB T6 |
Applications
- Petroleum and heavy oil metering
- Chemical processing involving high-viscosity resins and polymers
- Food and beverage industry (syrups, edible oils)
- Note: Not suitable for fluids containing solid particles or entrained gases.
FAQ
Can the Oval Gear Flowmeter measure water?
While it can measure water, it is primarily designed and most cost-effective for high-viscosity fluids where other meter types (like turbine or electromagnetic) might lose accuracy.
Does it require straight pipe runs?
No. Because it is a positive displacement meter, it does not require straight pipe runs upstream or downstream, making it ideal for tight or complex installations.
How do I get a quote?
Contact us with your medium, pipe size, working temperature/pressure, and required output; we will respond within 24 hours with a model selection and quotation.
