Chongqing Chuanyi VFC Standard Vortex Flow Meter

The Chongqing Chuanyi VFC Standard Vortex Flow Meter is a premier velocity-based flow measurement instrument widely utilized across petroleum, chemical, metallurgical, and municipal engineering sectors. Built upon the reliable Karman vortex street principle, the VFC series excels at monitoring and controlling diverse process media, including water, oils, chemical liquids, compressed air, natural gas, saturated steam, and superheated steam.

Equipped with cutting-edge DSP (Digital Signal Processing) technology, this flowmeter replaces traditional analog filters with intelligent digital filtering. The internal CPU automatically tracks and selects filter frequency bands based on real-time sensor signals, significantly enhancing anti-interference capabilities, measurement stability, and operational reliability. Designed with a mechanical vibration-isolating structure—separating the vortex generator from the probe—the VFC meter ensures that internal piezoelectric crystals remain unaffected by external mechanical disturbances.

Offering flexible connection options (wafer or flanged types) across a broad nominal diameter range from DN15 to DN600, the meter integrates seamlessly into existing piping systems. It features low-power, user-friendly dot-matrix LCD displays, non-volatile EEPROM data protection during power loss, and robust analog/pulse output options with optional HART and Modbus (RS485) communication protocols. With its durable, all-stainless steel wetted components and no moving parts to wear out, the VFC series minimizes maintenance requirements while maximizing long-term performance.

Key Features & Advantages

• Adaptive Digital Signal Processing (DSP): Utilizes advanced digital filtering to automatically track signal frequencies, providing superior anti-interference and signal stability.

• High Measurement Accuracy: Delivers precision up to ±1.0% for gases and up to ±0.75% for liquids under optimal operating conditions.

• Rugged Non-Clogging Design: Constructed entirely from high-grade stainless steel with zero moving parts, eliminating potential points of failure, gaps, and worn gaskets.

• Advanced Mechanical Anti-Vibration: Employs a separated vortex generator and probe assembly with dual main and auxiliary piezoelectric crystals to isolate mechanical pipeline noise.

• Clear LCD Display & Diagnostics: Features a low-power 128×64 dot-matrix LCD screen simultaneously showing instantaneous flow, cumulative flow, percentage, and comprehensive self-diagnostic information.

• Data Protection & Compensation: EEPROM memory safeguards parameters and totalized values without needing backup batteries, complemented by 5-segment linear error correction and basic analog temperature/pressure compensation.

• Flexible Output & Communication: Supports 4–20mA analog output, pulse output, and digital communication via HART or Modbus (RS485).

Application

• Chemical & Petrochemical: Precise monitoring of process liquids, corrosive chemicals, alcohols, and industrial gases.

• Energy & Power Generation: Measurement and auditing of saturated steam, superheated steam, and boiler feed water.

• Municipal & Environmental Engineering: Tracking water treatment flows, city gas distribution, and compressed air networks.

• Industrial Manufacturing: General factory automation and fluid management where pipeline vibration is minimal to moderate.

Technical Specifications

FAQ

Q1: How do I select the right pipe size for the VFC vortex flow meter?

A: Sizing should be determined based on your actual flow rate range, fluid density, viscosity, and operating velocity rather than matching the inner diameter of the process pipe directly. Ensure normal flow rates fall within the optimal measuring range. You can consult with us by providing your specific process parameters.

Q2: Does this flowmeter require external software or backup batteries for data retention?

D: No. All critical operating parameters and accumulated values are stored internally in non-volatile EEPROM memory, ensuring data protection during power losses without the need for backup batteries.

Q3: Can the VFC series measure steam and gas with temperature/pressure variations?

A: Yes. For media where temperature and pressure do not fluctuate drastically, the meter supports analog temperature and pressure compensation via parameter configuration to accurately derive mass flow or standard volumetric flow.

Q4: What are the installation requirements regarding straight pipe lengths?

A: To maintain high measurement accuracy, proper straight pipe sections must be installed upstream and downstream of the meter (typically avoiding heavy vibration zones and placement immediately close to pumps or fast-acting valves).

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