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Vortex Flow Meter for Liquid/Gas/Steam

Low-price vortex flow meter with full isolation design, optional LCD display, pulse output, 4-20mA output, and RS485 communication and other signal output, compatible with liquid, gas, heat transfer oil and steam metering, free optional temperature compensation, pressure temperature, to meet more field use.
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Delivery date: 7-12 days

Vortex flow meter for sale at the wholesale price, can be used to measure the flow of liquids, gases and steam, applicable pipe diameter from DN15 to DN300, sensing head with anti-vibration and anti-interference encapsulation process, the field anti-interference ability is stronger, vortex flowmeter low maintenance costs, easy to install.


 Vortex flow meter structure

Fully isolated design structure

  • Multiple signals
  • Pulse output
  • 4 -20ma output
  • RS485 communication
  Vortex flowmeter sensor

High temperature-resistant sensors

  • Steam metering
  • Compressed air
  • Heat transfer oil


The vortex flow meter is a kind of flowmeter applying the Carmen vortex principle, used to measure the flow of liquid, gas, and steam, also can measure the turbid liquid containing tiny particles, and impurities, widely used in petroleum, chemical, pharmaceutical, paper, metallurgy, electric power, environmental protection, food, and other industries.

Vortex flow meter application

Measuring Media Liquids, gases, steam
Line Size * DN15-DN300
Accuracy Gas (uncompensated): DN15-DN25 ±1.5%, DN32-DN200 ±1.0%, DN250-DN300 ±1.5%
Liquid (uncompensated):DN15-DN300 ±1.0%
With integrated temperature and pressure compensation: DN25-DN300 ±1.5%
Range Ratio 1:8~1:30
Medium Temperature -40℃ ~ +260℃ (for higher temperatures contact us)
Power Supply 24V DC±5%, Li-ion battery (3.6V DC)
Compensation Mode * Temperature compensation, pressure compensation, or integrated temperature and pressure compensation (Optional)
Display * LCD display (Optional)
Output Signal * Frequency, or 4-20mA
Communication Interface * RS485 (Optional)
Connection * Clamp, or Flange connection
Body Material 316 stainless steel
Protection Class IP65
Ambient Temperature -10℃ ~ +60℃


Flow Range

Diameter Nominal (mm) Liquid Gas
Flow Range (m3/h) Frequency Range (Hz) Flow Range (m3/h) Frequency Range (Hz)
15 0.3~5  35~450 4~20 300~1600
20 0.6~10 29~380 6~30 230~1200
25 1.2~16 25~320 8~55 170~1100
32 1.8~20 18~200 10~120 100~1180
40 2~40 10~190 27~205 130~1040
50 3~60 8~150 35~380 94~920
65 4~85 6~120 60~640 90~910
80 6.5~130 4.1~82 86~1100 55~690
100 15~220 4.7~69 133~1700 42~536
125 20~350 3.2~57 150~2000 38~475
150 30~450 2.8~43 347~4000 33~380
200 45~800 2~31 560~8000 22~315
250 65~1250 1.5~25 890~11000 18~221
300 95~2000 1.2~24 1360~18000 16~213



Vortex flowmeter dimension

Liquid vortex flowmeter dimension


Q1: Can a vortex flow meter have perfect accuracy?
A1: In an ideal world, the flow readings from your process meter would be exactly correct, without any type of deviation. Unfortunately, this is not the case, and the errors inherent in measurement must always be identified, accounted for, and minimized as much as possible.

Q2: Does a vortex flow meter need to be calibrated?
A2: During the production of a flowmeter, several steps are required such as coil winding, lining processing, and electrode assembly. This series of operations can cause a certain amount of error and dispersion in the device, so a calibration process is required to correct the accuracy.

Q3: How often do vortex flow meters need to be calibrated?
A3: Magnetic recalibrates the flowmeter every two years (every two years), or at the minimum frequency specified by the manufacturer. The manufacturer's specified minimum frequency meter readings are pressure corrected and, if necessary, corrected for moisture content.

Tips: Is a flow meter bi-directional?

Flow meters can only detect the magnitude of the flow, not the direction of the flow. Also, calibrate the meter in the direction indicated by the arrow on the bottom of the meter. Please refer to the application note Reverse Flow Effect on TS General Flow Meters for reverse flow calibration.


Thank you for buying industrial test and measurement equipment on, all products sold by sisco and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

sisco is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

What is not covered?

  • Product purchased from anyone other than a sisco store or a sisco authorized reseller.
  • Expendable parts.
  • Routine cleaning or normal cosmetic and mechanical wear.
  • Damage from misuse, abuse or neglect.
  • Damage from use of parts other than sisco approved.
  • Damage from use outside the product’s usage or storage parameters.
  • Damage from use of parts not sold by sisco.
  • Damage from modification or incorporation into other products.
  • Damage from repair or replacement of warranted parts by a service provider other than a sisco authorized service provider.
  • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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