Chemical Industry Positive Displacement Flowmeter Rotary Piston
Product Details
| Name: | Rotary Piston Flowmeter | Flow Range: | Varies By Model, Typically 0.1 To 1000 L/min |
|---|---|---|---|
| Installation Orientation: | Horizontal Or Vertical Installation Possible | Accuracy: | ±0.1% To ±0.5% |
| Materials: | Stainless Steel, Aluminum, Or Plastic | Repeat Ability: | ±0.1% |
| Pressure Rating: | Up To 400 Bar (varies By Model) | Measurement Principle: | Positive Displacement |
| Fluid Compatibility: | Suitable For Viscous Liquids, Oils, And Chemicals | Power Supply: | 24 VDC Or Battery-powered Options |
| Temperature Range: | -40°C To 150°C | ||
| Highlight |
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Product Description
Rotary Piston Flowmeter Suitable For High-Viscosity Fluids Without External Power Supply
A rotary piston flowmeter is a type of flowmeter that accumulates the volume of fluid by counting the number of rotations of the rotary piston within the metering chamber.
- Extremely high measurement accuracy: The accuracy is usually within ±0.2% to ±0.5%, making it one of the most accurate flowmeter types, especially suitable for trade handovers.
- Insensitive to viscosity changes: The measurement principle is based on volumetric displacement and is minimally affected by fluid viscosity. The higher the viscosity, the smaller the internal leakage, and the better the performance. It is an ideal choice for measuring viscous media such as heavy oil, crude oil, lubricating oil, and asphalt.
- Wide measurement range: It can reach 10:1 or higher.
- Direct mechanical measurement without external power (basic model), ensuring high reliability.
- Low starting flow rate, capable of accurately measuring low-speed flows.
| Characteristics | Rotary Piston Flowmeter | Elliptical Gear Flowmeter | Scraped Surface Flowmeter |
|---|---|---|---|
| Moving Parts | One C-shaped rotating piston. | One pair of intermeshing elliptical gears. | Several radially sliding scrapers. |
| Applicable Viscosity | Highly viscous, especially suitable for high-viscosity fluids. | High. | High. |
| Complexity and Cost | Moderately high. | High (difficult gear processing). | High (more moving parts). |
| Dirt Tolerance | The worst, most sensitive to impurities. | Poor. | Relatively good (some designs can tolerate small particles). |
| Typical Applications | Precision measurement of fuel oil, lubricating oil, and clean chemical raw materials. | Similar, but more common in food | Crude oil, refined oil products, liquefied gas, etc. |
- Petroleum and petrochemical industry (core market): Retail measurement of gasoline and diesel at gas stations (core of fuel dispensers); trade handover of fuel oil, lubricating oil, and base oil at oil depots; process measurement of heavy oil and residual oil in refineries.
- Chemical industry: Batch shipment or process batching of resins, solvents, additives, and high-viscosity chemicals.
- Food and oil industry: Filling and measurement of viscous foods such as edible oil, syrup, chocolate, and honey.
- Ship bunkering: Key measurement equipment for fuel oil bunkering of ships, requiring high precision and reliability.
Rotary piston flowmeters are the "precision measurement experts" in the family of positive displacement flowmeters, especially in the field of trade measurement for "high-viscosity clean liquids", where they have established an unshakable position.
Product Highlights
Rotary Piston Flowmeter accumulates fluid volume by counting rotations of the rotary piston within the metering chamber. With extremely high measurement accuracy, it suits high-viscosity fluids without external power supply. Contact us for rotary piston flowmeter specifications.
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