YYCL Series Gear Flow Meter
The YYCL Series Gear Flow Meter is a precision volumetric flow meter based on the gear motor principle, designed for continuous or
intermittent measurement of liquid flow in pipelines. It employs two meshing gears as rotors within a chamber, where
the rotation of these gears directly correlates to the volume of
fluid passing through. This design ensures high accuracy, especially for high-viscosity fluids such as heavy oil, polyethylene(PVA), resins, and chemicals. The YYCL series is engineered to operate reliably under extreme
conditions, including high pressure, high temperature, and
corrosive environments, making it suitable for petroleum, chemical,
food, pharmaceutical, and metallurgical industries.
Technical Parameters
Key specifications are summarized in the table below:
| Parameter | Specification |
|---|
| Model | YYCL Series |
| Accuracy | ±0.5% (standard); ±0.2% (optional) |
| Measuring Range | 0.3 L/H to 340 m³/h (varies by diameter and viscosity) |
| Max. Working Pressure | Up to 40 MPa |
| Temperature Range | -60°C to +170°C (standard); -196°C to +170°C (optional) |
| Viscosity Range | 0.3–400,000 cP |
| Output Options | Pulse, 4–20mA analog, RS485, HART communication |
| Connection Types | Flange, thread, clamp, socket (DN10–DN200) |
| Wetted Materials | Stainless steel, cast iron, cast steel, tungsten alloy bearings |
| Protection Rating | IP65 (standard); Explosion-proof Exd IICT4 (optional) |
| Power Supply | 24 VDC (for electronic outputs) |
Features & Advantages
High Precision & Repeatability: Maintains accuracy up to ±0.2% unaffected by viscosity, density,
or flow state changes.
Robust Construction: Stainless steel (housing) and tungsten alloy bearings ensure
durability in harsh conditions (e.g., corrosion, high wear).
Wide Operational Range: Functions effectively under high pressure (up to 40 MPa) and
extreme temperatures (-196°C to +170°C).
Viscosity Adaptability: Ideal for high-viscosity fluids (up to 400,000 cP) and
measurement (as low as 0.3 L/H).
Multiple Outputs & Installations: Supports pulse, 4–20mA, RS485, and HART outputs; offers flexible
installation (horizontal/vertical) without straight-pipe
requirements.
Low Maintenance: No moving parts except gears; resistant to clogging and corrosion
with optional filter protection.
Typical Applications
Petrochemical: Crude oil transportation, refinery processes, and chemical
solvent measurement.
Food & Beverage: Flow control of syrups, oils, and high-viscosity edible liquids.
Pharmaceutical: Precise dosing of viscous liquids (e.g., resins, adhesives) in
production.
Metallurgical: Cooling oil and lubricant measurement in metal processing.
Chemical Industry: Corrosive fluid handling (acids, alkalis) with material
customization (e.g., stainless steel/PTFE lining).
The YYCL Series Gear Flow Meter combines precision, durability, and
versatility, making it a critical tool for industries requiring
reliable flow measurement of challenging fluids. For specific
(medium) compatibility or custom configurations, consult
manufacturer guidelines.
