Is your lab or process line challenged by fluctuating liquid viscosities or the need for absolute measurement reliability, even during a power outage? Achieving precise, repeatable flow data is fundamental to quality control and process efficiency. The ABR-Birotor Flowmeter is engineered as the definitive solution for volumetric liquid measurement, offering unparalleled accuracy and robust mechanical reliability for pipe sizes from DN15 to DN400.

Why Choose a Mechanical Counter Birotor Flowmeter? Solving Your Lab and Process Challenges

Inconsistent readings, equipment downtime, and complicated installations are common pain points in fluid handling. This positive displacement flowmeter directly addresses these issues to enhance your operational confidence.

• Eliminate Power Dependency & Data Loss: Unlike electronic meters, the core of this Birotor flow meter utilizes a reliable mechanical counter. This means you get continuous, on-site reading without an external power supply, and your totalizer data is never lost during a power cut—a critical advantage for custody transfer and batch processing.

• Achieve Unwavering Accuracy Across Viscosities: Researchers often struggle with meters that require recalibration when switching fluids. The unique double-rotor design ensures high volumetric flow meter accuracy (up to 0.1%) across an astonishing range, from thin solvents to viscous liquids up to 20,000 mPa.s. You can trust your data, whether measuring light gasoline or heavy crude oil.

• Reduce Maintenance and Downtime: Designed for longevity and smooth, low-noise operation, the precision ABR-Birotor positive displacement flowmeter minimizes wear. Its robust construction ensures a long service life, reducing the frequency and cost of replacements or repairs, so your critical measurements continue uninterrupted.

Technical Specifications at a Glance

For the researcher and purchaser who demands detail, here are the precise specifications of the ABR-Birotor Flowmeter:

General Specifications

• Available Pipe Sizes (DN): 15, 25, 40, 50, 80, 100, 150, 200, 250, 300, 400

• Medium Temperature Range: Standard (-20°C to +100°C) / High-Temp Option (-20°C to +250°C)

• Ambient Temperature Range: Standard (-20°C to +55°C) / Special Option (-30°C to +70°C)

• Nominal Pressure (PN): 1.6 MPa, 2.5 MPa, 4.0 MPa, 6.3 MPa (11 MPa available on request)

• Kinematic Viscosity Range: 0 to 20,000 mPa.s (covers an extremely wide range of liquids)

• Ingress Protection: IP66 (suitable for harsh environments)

• Explosion Proof Rating: Ex db II C T6 Gb (safe for hazardous areas)

Performance & Output

• Measurement Accuracy: ±0.1% (Optional), ±0.2%, ±0.5% (Selectable based on application needs)

• Counter Type: Pointer-type (all sizes) or Large-character resettable code counter (for DN > 25)

• Signal Output (Optional): Photoelectric pulse converter for remote transmission, (4-20) mA analog output with pulse converter, enabling integration with SCADA or other control systems.

• Flange Standards: GB9119-2010, JB/T82-94 (Can be manufactured to user-specified flange standards).

Flow Rate Ranges (m³/h) by Viscosity

To help you select the ideal model, here are the flow ranges across different liquid types and viscosities:

• DN 15: 0.3 - 4.0 m³/h (Excellent for low-flow applications)

• DN 25: 1.0 - 10.0 m³/h

• DN 40: 1.5 - 25.0 m³/h

• DN 50: 2.2 - 40.0 m³/h

• DN 80: 4.0 - 70.0 m³/h (Pulse/Liter: 0.1)

• DN 100: 6.0 - 120.0 m³/h

• DN 150: 12.0 - 250.0 m³/h

• DN 200: 30.0 - 400.0 m³/h

• DN 250: 40.0 - 600.0 m³/h

• DN 300: 80.0 - 1000.0 m³/h

• DN 400: 100.0 - 1800.0 m³/h

(Full detailed tables for each accuracy level (0.5%, 0.2%, 0.1%) across all viscosity ranges are available in the product manual.)

How It Works: The Science of Precision

The measuring principle is elegantly simple yet mechanically sophisticated. Inside the flowmeter's chamber, a pair of precisely machined spiral rotors forms a seal with the casing. As liquid flows through, the pressure differential causes the ABR-Birotor Flowmeter's rotors to turn. Each rotation traps and displaces a fixed, known volume of liquid. This rotation is mechanically transferred via a magnetic or sealed coupling to the mechanical counter for the Birotor flowmeter, providing a direct, power-free totalization of volume. For modern data needs, an optional pulse converter can tap this motion to provide electronic output signals.

Ready to Bring Uncompromising Accuracy to Your Flow Measurement?

Whether you are managing a pilot plant, a quality control lab, or a full-scale production line, the ABR-Birotor Flowmeter delivers the data integrity you need.