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Flow meter

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  1. Nozzle flowmeter
  2. Nozzle flowmeter

Nozzle flowmeter

YFLJZ standard nozzle flowmeter is also known as ISA1932 nozzle. It has the characteristics of high temperature and pressure resistance, impact resistance, long service life, large measurement range a

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

YFLJZ standard nozzle flowmeter is also known as ISA1932 nozzle. It has the characteristics of high temperature and pressure resistance, impact resistance, long service life, large measurement range and high measurement accuracy. Standard nozzles are designed and manufactured according to international GB / T2624.1-2006, and verified according to JJG640-94. No live calibration is required.

Product advantages:

1. Most suitable for measuring high temperature steam flow measurement

2. Relevant national standards, no actual flow calibration required

3. Pressure loss is better than orifice flowmeter

4. Measurement accuracy is better than 1.0


Nominal diameter50mm≤DN≤500mm Aperture ratio0.30≤β≤0.8
Nominal pressurePN≤32MPaAccuracy classclass 1.0


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)

标准喷嘴流量计.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: