Chuanyi MFD Slurry Electromagnetic Flowmeter

The Chongqing Chuanyi MFD Slurry Electromagnetic Flowmeter is built to handle the most rigorous and abrasive fluid applications in process industries. Operating on Faraday’s law of electromagnetic induction, the meter features an unobstructed flow tube design that prevents clogging and eliminates extra energy loss, making it an optimal choice for viscous, particle-laden media.

Advanced Slurry Measurement Technology

Equipped with a multi-frequency excitation method and adaptive damping coefficients, the MFD series achieves a response speed of >= 0.85 seconds and operates reliably with media having an electrical conductivity of >= 2 µS/cm. Its unique noise-processing and digital filtering technologies efficiently filter out interference generated by deposits adhering to the pipeline or electrodes, significantly enhancing performance in liquid-solid mixtures. It accommodates paper pulp mass concentrations up to 10% and mineral slurry solid contents up to 70% with a variation range of less than 5%.

Smart Diagnostics & Communication

The flowmeter includes comprehensive self-diagnostic capabilities, such as empty pipe detection, excitation drive monitoring, and error storage. Multiple communication protocols, including standard pulse/analog output, RS485, and HART, allow seamless integration into distributed control systems (DCS) and plant automation networks.

Application Areas

• Paper & Pulp Industry: Measurement of paper pulp, white liquor, black liquor, and green liquor.

• Mining & Mineral Processing: Monitoring and control of abrasive mineral slurries, tailings, and clay slurries.

• Energy & Power Generation: Handling water coal slurry and ash transport water.

• Environmental & Wastewater Treatment: Processing heavy sludge, sewage, and lime slurry.

Technical Specifications

• Nominal Diameter (DN): DN25 – DN600

• Accuracy Class: Grade 0.5

• Nominal Pressure: 1.0MPa, 1.6MPa, 2.5MPa, 4.0MPa, and ANSI/JIS flange options

• Lining Materials: ETFE, PTFE, PFA, F46, Polyurethane Rubber, Natural Rubber, Chloroprene Rubber

• Electrode Materials: 316L, Hastelloy, Titanium, Tantalum, Platinum-Iridium alloy, Tungsten Carbide coating, Platinum

• Electrical Conductivity: >= 2 µS/cm (deionized water >= 20 µS/cm)

• Flow Velocity Range: <= 5 m/s for slurries; <= 10 m/s for single-phase media

• Medium Temperature:

  • Non-explosion-proof: -25°C to 180°C

  • Explosion-proof: -25°C to 130°C

• Protection Class: IP65/IP67 for compact types; sensor optional IP68 for remote types

• Explosion-Proof Mark: Ex ia/db eb IIC T4-T6 Ga/Gb

• Power Supply Options: 100-230V AC (47Hz-440Hz) or 11V-40V DC

FAQ

• Q: What makes the MFD series suitable for slurry measurement compared to standard electromagnetic flowmeters?

  A: The MFD series features specialized multi-frequency excitation and advanced noise-processing algorithms designed to eliminate signal interference caused by solid particles and electrode coating, ensuring stable readings in high-concentration slurries.

• Q: Can the MFD flowmeter handle negative pressure conditions in the pipeline?

  A: Selection of liner material is critical under negative pressure. While PTFE has poor vacuum resistance, options like PFA or ETFE with optional metal reinforcing mesh can be configured for vacuum or high-negative-pressure environments.

• Q: Is the converter interchangeable across different sensor sizes?

  A: Yes, the MFD converter features complete interchangeability with various sensor sizes without requiring recalibration of the real flow profile.

• Q: What are the installation straight pipe length requirements?

  A: To secure optimal measurement accuracy, standard electromagnetic flow requirements apply, typically ensuring upstream straight pipe length >= 5D and downstream >= 2D.