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  1. Wedge Flow meter
  2. Wedge Flow meter
  3. Wedge Flow meter

Wedge Flow meter

Wedge flowmeter is a new type of throttle differential pressure type, which can perform high-precision flow measurement in the case of fluids with high viscosity and low Reynolds number (reynolds numb

  1. Working principle
  2. Technical Parameters
  3. Selection table
  4. Dimension drawing
  5. Instructions for ordering

Wedge flowmeter is a new type of throttle differential pressure type, which can perform high-precision flow measurement in the case of fluids with high viscosity and low Reynolds number (reynolds number> 500 can be used); Large-diameter flow measurement occasions have unparalleled advantages and irreplaceable effects.

Wedge flowmeter has the function of correction of parameters such as flow coefficient, non-linear error, temperature change and density change; measurement accuracy can reach 0.5%; it can have on-site display and standard current signal (4 ~ 20mA DC) output, which can be conveniently used Automatic control system or network with computer for automatic adjustment and control of flow or other parameters.

Wedge flowmeter is mainly used for high viscosity (heavy oil, residual oil, diesel, engine oil, etc.), industrial gas (coke oven gas, blast furnace gas, generator gas, city gas), hydrogen, nitrogen, air, water vapor, sewage liquid, etc. Flow measurement of media.

This kind of flowmeter has a simple structure, no moving parts, and is not easy to be abraded by fluids. It has stable, reliable, and long service life. Its measuring element and pressure-receiving device have a special structure, and the fluid does not form stagnation or blockage when passing. Small, ideal for high-precision flow measurement at low Reynolds numbers.


Measurement mediumLiquid, gas, steam, mixed phase flowRange ratio1:10, 1:15
Measuring aperture15 mm ≤ DN ≤ 1200mmMeasuring accuracyclass 0.5, class 1.0
Nominal pressurePN ≤ 42MPaMaterialcan be selected according to the measurement medium
Temperature range-50℃≤ t ≤ 550℃
ModelDescription
YFLJYaFeng throttling device
Throttling deviceBstandard orifice plateQround orifice plate
PBalance orifice / adjustment orificeGWedge
VV coneZnozzle
XX orifice plate (not used and metered, only for current limiting or pressure reduction)WVenturi
Caliber-XX Pipe diameter is expressed by Arabic numerals, for example, DN100mm can be expressed as -100
Pressure-1.61.0  1.6  2.0  2.5  4.0  6.3  6.3 or more
Pressing methodFFlange press (flange wafer type)
Jcorner joint pressure (flange wafer type)
DD-ring pressure extraction (flange wafer type)
HH line spacing pressure (pipe integrated)
Flange typeWNwith neck butt welding flange
SWplate socket welding flange
Flange MaterialCCarbon Steel
P304
PL316L
Tother materials
Throttle materialP304
P1321
PL316L
Tother materials
Attachment0noY

pressure transmitter (pressure compensation)


LCondenserJFlowmeter Totalizer

FPressure taking valveCDifferential pressure transmitter

SThree valve groupTOther

WPT100(temperature compensation)

楔形流量计.jpg

Measurement medium:
Scale flow:
Maximum flow:
Common traffic:
Minimum flow:
Worksheet pressure:
Operating temperature:
Measuring medium density:
Measuring medium viscosity:
Isentropic index in working state:
Mean atmospheric pressure:
Relative humidity:
Pipe specifications (outer diameter X wall thickness) mm:
Media composition Volume percentage:
Selection of throttling devices:
Throttle material:
Pipe material and old and new:
Piping installation location:
Pressure loss:
Required attachment name: