Vortex Flow Meter
- Integrated pressure and temperature compensation.
- 4-20mA, pulse with HART or pulse with RS485 are selectable.
- Wide temperature range up to highest temperature 350 ℃
- No moving parts, no abrasion, non-wearing parts inside, fully welded SS304 body(SS316 selectable).
- Adopt Japan OVAL technology and design
- Embedded sensor, 4 piezo-electric crystal encapsulated inside the sensor.
- Description
- Application Areas
- Specifications
- Brochure
- User’s Guide
- How It Works
Product Description
Vortex Flowmeter Advantages:
- Integrated pressure and temperature compensation.
- 4-20mA, pulse with HART or pulse with RS485 are selectable.
- Wide temperature range up to highest temperature 350 ℃
- No moving parts, no abrasion, non-wearing parts inside, fully welded SS304 body(SS316 selectable).
- Adopt Japan OVAL technology and design
- Embedded sensor, 4 piezo-electric crystal encapsulated inside the sensor.
Vortex flow meter is one kind of speed type flow meter, It based on Karman vortex theory and adopts piezoelectric crystal to detect the burble frequency of the fluid caused by flowing through the triangular prism in the pipeline and then measure the flow of fluid.
Vortex flow meter is widely used in petrol, chemical industry, light industry and power heat supply and so on.
It is suitable for measuring flow rate of liquids gases and steam
- Caliber (mm): DN15-DN3000 Reference Code
- Nominal Pressure: 1.6Mpa, 2.5Mpa, 4.0Mpa, Others
- Connection: Flange, Wafer, Tri-clamp(Sanitary), Thread, Insertion, Others
- Medium: Liquid, Common Gas, Saturated Steam, Superheated Steam, Others
- Special Mark: Normal N, Standard Signal Output M, Intrinscally safe Explosion-proof B, On Site Display X, High Temperature (350℃) G, Temperature Compensation W, Pressure Compensation Y, Temperature&Pressure Compensation Z
- Structure Type: Compact/Integral, Remote
- Power Supply: 24 VDC, 3.6V Lithium Battery, Others
- Output Signal: 4-20mA, Pulse, 4-20mA/HART, Pulse/RS485, 4-20mA/Pulse/HART, Others
- Flange Standard: DIN PN16, DIN PN25, DIN PN40, ANSI 150#, ANSI 300#, ANSI 600#, JIS 10K, JIS 20K, JIS 40K, Others
Vortex Flow Meter Technical Document
User Manual
When the fluid in the pipeline passes the burble generator(triangular prism),burble will generate due to the acceleration of partial flow rate. The burble will arise alternatively in two burble lines, which is called Karman vortex.
The releasing frequency of Karman vortex depends on the size of triangle prim and flow rate of fluid, while independent of the medium feature parameter, such as the temperature, pressure, it can be indicated by the following formulas:
F=sR*v(1-1.27*d/D)................................................formula 1
Q=3600*F/K...............................................................formula 2
M=Q*p..........................................................................formula 3
F......The releasing frequency of Karman vortex (unit: Hz)
Sr.....Strouhal number (unit: dimensionless)
V.....Medium flow rate (unit:m/s)
d......The width of triangle prim
D......Vortex meter inner diameter (unit:m)
Q.......Instantaneous volume flow rate (m3/h)
K.......Vortex meter coefficient (unit pulse number/m3)
M.......Instantaneous quality flow rate (unit: kg/h)
P.........Fluid density (unit:kg/m3)
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