Description
Vortex Flow Meter VFM Series Manufacturer
Flow Meter for Precise Liquid Measurement
The Flowtech Vortex Flow Meter leverages the Karman vortex street principle to deliver precise and reliable measurement of liquids, gases, and steam. Renowned for its versatility, this flow meter is extensively used in industries such as petroleum, chemical, metallurgy, and heat supply.
Operating Principle:
When fluid flows past a triangular column type vortex generator, two rows of alternating vortices are produced, known as Karman vortex streets. This phenomenon enables the detection and metering of the fluid flow. The vortex rows are arranged asymmetrically downstream of the generator, ensuring accurate measurement.
Applications:
- Pure liquids and low viscosity hydrocarbons (< 10 Cp)
- Water industry applications
- Chemicals compatible with SS 316 material
- Saturated and superheated steam
- Industrial gases
- Compressor air measurement
Key Features:
- Integrated Pressure and Temperature Compensation: Ensures accuracy across varying conditions.
- Output Options: 4-20 mA, pulse with HART; optional pulse with RS 485.
- Wide Temperature Range: Operates efficiently up to 350ºC.
- Robust Sensor Design: Embedded sensor with four piezo-electric crystals encapsulated inside.
- Durable Construction: No moving parts, non-abrasive, and non-wearing parts inside. Fully welded body available in SS 304, SS 316, or Hastelloy-C.
Choose the Flowtech Vortex Flow Meter for precise, reliable, and versatile flow measurement solutions in your industrial applications.
Technical Specifications
- Nominal Diameter (mm): 15,20,25,40,50,65,80,100,125,150,200,250,300,( 300 to 1000 insertion type )
- Nominal Pressure (MPa): DN15-DN200 4.0 (>4.0 agreement to supply), DN250-DN300 1.6(>1.6 agreement to supply)
- Medium Temperature (ºC) : Piezoeletric : -40 to 100,-40 to 250,-40 to 330;Capacitive:-40 to 400,-40 to 500 (order agreement)
- Body Material: SS 304 / SS 316 / Cust
- Allowable Vibration
Acceleration: Piezoelectrical : 0.2 g Capacitive : 1.0~2.0 g - Precision: ± 1%R, ± 1.5%R; Insertion : ± 2.5 percent R
- Certification: IP Type Test Report, EMI/EMC Certification, IBR Approved
- Range: 1:6 to 1:25
- Supply Voltage: Sensor: DC 24V/230 VAC/Cust, Battery Powered Type : 3.6 V Battery
- Output Signal: Square wave pulse(excluding battery-powered type): high level ≥ supply voltage minus 1V,
low level ≤ 1V ; current : 4~20mA - Pressure Loss Coefficient: Conform to JB/T9249 standard Cd ≤ 2.4
- Intrinsically safe
parameters : Ui=28VDC, Li=100mA, Pi=0.657W,Ci=0. μ F, Li=0mH - Environmental conditions: Temperature -20ºC~55ºC, relative humidity 5%~90%, Atmospheric pressure 86~106kPa
- Applicable Medium : Gases, Liquid, Vapors
- Transmission: Three-wire pulse output type : ≤ 300m, two-wire standard current output type
A Vortex Flow Meter is a device that measures the flow rate of fluids (liquids, gases, and steam) by using the principle of Karman vortex street. It detects the vortices generated as the fluid flows past a bluff body.
The Vortex Flow Meter operates based on the Karman vortex street principle. When fluid passes a triangular column vortex generator, alternating vortices are created downstream. The frequency of these vortices is proportional to the fluid velocity, allowing for accurate flow measurement.
Industries such as petroleum, chemical, metallurgy, heat supply, water, and steam applications can benefit from using a Vortex Flow Meter due to its versatility and accuracy.
The Vortex Flow Meter can measure a variety of fluids, including pure liquids, low viscosity hydrocarbons, water, compatible chemicals (SS 316 material), saturated and superheated steam, industrial gases, and compressor air.
The key features include integrated pressure and temperature compensation, 4-20 mA output with HART, optional pulse with RS 485, a wide temperature range up to 350ºC, embedded sensor with piezo-electric crystals, and a durable, fully welded SS 304, SS 316, or Hastelloy-C body.
The Vortex Flow Meter offers multiple output options, including 4-20 mA, pulse with HART, and optional pulse with RS 485, providing flexibility for integration with various systems.
Yes, the Vortex Flow Meter can operate efficiently in temperatures up to 350ºC, making it suitable for a wide range of industrial applications.
The Flowtech Vortex Flow Meter is constructed with fully welded SS 304, SS 316, or Hastelloy-C bodies, ensuring durability and compatibility with various fluids.
No, the Vortex Flow Meter has no moving parts, which minimizes wear and tear, ensuring long-term reliability and low maintenance.
