Chuanyi VFT Enhanced Type Vortex Flowmeter

The Chuanyi VFT Enhanced Type Vortex Flowmeter is engineered for demanding industrial environments, offering high-precision measurement for liquids, compressed air, natural gas, nitrogen, saturated steam, and superheated steam. By detecting the frequency of Karman vortex shedding generated behind a non-streamlined bluff body, this meter achieves exceptional linearity and repeatability independent of fluid density, pressure, or viscosity changes.

Key Architectural & Performance Highlights:

• Blockage-Free & Moving-Part-Free Design: Constructed entirely from durable stainless steel (such as 304 or 316L), the sensor contains no moving parts or gaps, significantly reducing mechanical wear and pressure loss while preventing clogging in harsh industrial media.

• Advanced Digital Signal Processing (DSP): The integrated microprocessor replaces traditional analog filters with advanced digital filtering, enabling real-time signal tracking, automatic band adjustment, and superior anti-vibration performance.

• Dual-Output & Smart Communication: Provides standard 4-20mA analog current output and pulse output, alongside optional HART and Modbus (RS485) communication protocols for remote monitoring, parameter configuration, and diagnostics.

• Self-Diagnostics & Data Protection: Equipped with a 128×64 full dot-matrix LCD display showing instantaneous flow, cumulative flow, percentage flow, and self-diagnostic alerts. Built-in EEPROM memory ensures cumulative data is safely retained during power loss without requiring backup batteries.

• Interchangeability: Converters and sensors are designed for high interchangeability across various diameters, simplifying maintenance and spare parts management.

Application

• Petroleum & Chemical Industry: Measuring various chemical liquids, acids, alkalis, and process gases.

• Energy & Power Generation: Monitoring boiler feed water, cooling water, and steam consumption.

• Municipal & Environmental Projects: Water treatment, sewage management, and municipal pipeline flow monitoring.

• Industrial Manufacturing: Compressed air, nitrogen, oxygen, and other utility gas flow control in metallurgical and mechanical plants.

Technical Parameters

• Accuracy Grade: ±1.0% (for gas/steam), ±0.75% (for liquid)

• Nominal Caliber (Size): Clamped type: DN15 – DN100; Flange type: DN15 – DN600

• Nominal Pressure: 1.0 MPa, 1.6 MPa, 2.5 MPa, 4.0 MPa, ANSI 150, ANSI 300 (higher pressure agreements available)

• Wetted Part Material: Standard 304 stainless steel, optional 316L, Hastelloy C

• Medium Temperature Range: Ordinary type: -40°C ~ +200°C; High-temperature type: -40°C ~ +350°C

• Ambient Temperature: -20°C ~ +70°C

• Enclosure Protection: IP65, IP66, IP67

• Explosion-Proof Grade: Intrinsically safe (Ex ia IIC T6), Flameproof (Ex d IIC T6)

• Power Supply: External power supply (16.5 ~ 42 VDC with HART; 21.6 ~ 26.4 VDC with Modbus)

• Output Signal: Analog 4–20mA output, pulse output, HART, Modbus (RS485)

FAQ

Q: What types of fluids can the enhanced vortex flowmeter measure? A: It is versatile and can accurately measure most liquids (water, oils, chemicals), gases (air, oxygen, nitrogen, natural gas), and both saturated and superheated steam.

Q: Does the meter require frequent maintenance or calibration? A: No. Because the sensor features a robust, blockage-free design with no moving parts, mechanical wear is minimized, ensuring long-term operational stability and low maintenance requirements.

Q: Can I access flow data remotely? A: Yes. The meter supports 4-20mA analog output, pulse output, and digital communication protocols including HART and Modbus (RS485) for seamless integration into control and automation systems.

Q: What installation types are available? A: It is available in both clamped (wafer) type and flanged type configurations to suit different pipeline layouts and pressure specifications.

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