Chongqing Chuanyi VFE Smart Vortex Flow Meter

The Chongqing Chuanyi VFE Smart Vortex Flow Meter represents a cutting-edge solution for industrial process measurement, combining high-accuracy flow detection with real-time temperature and pressure compensation. Built on the Karman vortex street principle, this intelligent flowmeter incorporates advanced digital signal processing (FFT technology) to accurately detect vortex frequencies even in low-flow regimes and high-vibration environments up to 1g.

As an all-in-one measurement device, the VFE series features built-in temperature and pressure sensors. This allows the meter to directly measure working conditions and automatically compute mass flow or standard volumetric flow, making it an ideal choice for precise energy management, steam monitoring, and trade settlement applications. With its robust, non-clogging stainless steel structure and zero moving parts, the meter ensures long-term reliability and minimal maintenance.

Key Features & Advantages

• Integrated Multi-Variable Compensation: Built-in temperature and pressure sensors enable real-time compensation, directly outputting mass flow or standard volume flow.

• Advanced FFT Signal Processing: Utilizes state-of-the-art Fast Fourier Transform algorithms to filter out background pipe vibrations and capture weak vortex signals accurately.

• High Vibration Resistance: Employs dual-sensor technology to isolate pipeline vibrations, ensuring stable measurements in harsh industrial conditions up to 1g intensity.

• Wide Turndown Ratio: Exceptional low-flow performance with a liquid velocity starting down to 0.2 m/s, achieving a turndown ratio of up to 1:30.

• Low Power Consumption: Operates with a working current of less than 4mA and total power consumption under 100mW.

• Data Protection & Diagnostics: Features non-volatile EEPROM storage to protect parameters and accumulated values during power loss, alongside comprehensive self-diagnosis and alarm outputs.

• Flexible Communication Options: Supports 4–20mA analog output, pulse output, HART communication, Modbus (RS485), and FOUNDATION Fieldbus (FF).

• Rugged & Explosion-Proof Design: Manufactured with high-grade stainless steel wetted parts (304 or 316L) and certified with Ex-proof standards (Intrinsic Safety Ex ia IIC T6 / Explosion-proof Ex d IIC T6).

Application

• Petrochemical & Chemical Industry: Monitoring and measuring corrosive or non-corrosive process liquids, chemical gases, and reactive agents.

• Energy & Power Generation: Precision measurement of superheated steam, saturated steam, and boiler feed water for thermal efficiency and energy auditing.

• Municipal & Utilities: Efficient management and distribution of compressed air, natural gas, city water networks, and HVAC systems.

• Metallurgy & Mining: Handling industrial exhaust gases, high-temperature vapors, and cooling water circuits.

Technical Specifications

Technical Specification	Parameter Details
Meter Type	Flanged Type Smart Vortex Flow Meter
Accuracy Class	Class 1.0 (Gas / Steam), Class 0.5 (Liquid, optional)
Nominal Diameters (DN)	DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300
Pressure Ratings	1.0 MPa, 1.6 MPa, 2.5 MPa, 4.0 MPa, ANSI 150#, ANSI 300#
Wetted Materials	Stainless Steel 304, Stainless Steel 316L
Medium Temperature	Standard Type: -40°C to +120°C; High-Temperature Type: -40°C to +350°C
Ambient Temperature	-52°C to +65°C
Repeatability	±0.3%
Velocity Range	Liquid: 0.3 to 7 m/s; Gas: 3 to 60 m/s; Steam: 2.5 to 60 m/s
Power Supply	External DC 16.5V ~ 42V (Standard 24VDC)
Output Signals	4–20 mA Analog Output, Pulse Output
Communication Protocols	HART, Modbus (RS485), FOUNDATION Fieldbus (FF)
Enclosure Protection	IP65, IP66, IP67
Explosion-Proof Rating	Ex ia IIC T6 Ga / Ex d IIC T6 Gb
Temperature Error	±1°C
Pressure Accuracy	±0.5% FS

 

FAQ

Q1: How do I select the correct size for the vortex flow meter?

A: Selection should be based on your actual volumetric flow rate, fluid density, viscosity, and velocity rather than just the existing pipe size. Ensure that the normal operating flow sits well within the measurable range (ideally above 20% of the upper limit). Feel free to provide your process parameters for professional sizing assistance.

Q2: Does the VFE series require external computers for steam measurement?

A: No. The VFE series features built-in temperature and pressure sensors that perform real-time compensation directly within the meter, automatically calculating mass flow or standard volumetric flow for steam and gas applications.

Q3: What kind of straight pipe runs are required for installation?

A: To ensure high measurement accuracy, it is generally recommended to have an upstream straight pipe section of at least 15D and a downstream section of at least 5D (where D is the nominal diameter of the flowmeter).

Q4: Can this flowmeter operate in high-vibration industrial settings?

A: Yes. The meter utilizes advanced FFT spectral analysis and a dual-sensor design that actively filters out pipeline vibrations (handling vibration intensities up to 1g), ensuring stable signal acquisition in harsh environments.

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