Wafer Type Vortex Flow Meter for Steam Mixed Gas and Liquid

  • The detection element does not contact the fluid, high reliability, strong medium adaptability
  • No moving parts, wear resistance, strong structure, simple
  • With good seismic performance
  • Wide allowable operating temperature range, -40℃~+350℃
  • Wide measuring range, high accuracy
  • Pulse signal output or two-wire 4 ~ 20mA current signal output
Enquiry

Vortex flow meter is one of the mainstream flow measurement products, widely used in petroleum, chemical industry, metallurgy, heating and other departments to test and measure the flow of liquid, gas and steam.

A triangular column type vortex generator is set in the fluid to alternately generate regular vortices from both sides of the vortex generator. Such vortices are called Karman vortices, as shown in picture below . The rows of vortices are asymmetrically arranged in the downstream of the vortex generator. Suppose the frequency of the vortex is f, the average velocity of the measured medium is V, the width of the vortex generating body is d, and the diameter of the surface body is D, then the relation can be obtained:

vortex flow meter
Vortex Steam Flow Meter

 

                     

                       

Features

  • High temperature sensor standing up to 350°C
  • Best choice for trade settlement
  • Low pressure loss, high reliability, less maintenance
  • Integral forging, anti-rust, long service life.
  • Body Material SS304,Optional ss316
  • Temperature and pressure compensation

Specification

 

Measuring medium

 

Liquid, gas, steam (single-phase media or can be considered to be single-phase media)
Saturated steam can be considered as a single-phase medium when the dryness is ≥ 85%
Medium temperature-40 ~ + 250℃; 40 ~ + 350℃ (high temperature type)
Medium pressure1.6MPa   2.5MPa   4.0MPa(Pressure above 4.0MPa, need to be customized)
accuracy±1.0% (Flange/Wafer)
±1.5% (Insertion type)
Range ratio1:8 ~ 1:30 (reference standard air) 1:8 ~ 1:40 (reference normal temperature water)
Flow rangeLiquid 0.4~7.0m/s  Gas 4.0~60.0m/s  Steam 5.0~70.0m/s
specificationDN15-DN300
material1Cr18Ni9Ti(321)
Reynolds numberNormal 2×104~7×106
Drag coefficientCd≤2.6
Allowable vibration acceleration≤0.2g
Class of protectionIP65
Explosion-proof class(ia)   ⅡCT6
 

Environmental condition

 

Ambient temperature-40~+55℃(non-explosion-proof place)   -20~+55℃(explosion-proof place)
Relative humidity≤85%
Atmospheric pressure86~106kPa
Power supplyNon-explosion-proof type12V~32V DC;

Flow range table(m³/h)

Nominal diameterDN(mm)liquid (t=20℃  ρo=1000kg/m3)Gas (t=20℃  101325Pa air)
Standard rangeMeasurable flow rangeStandard rangeMeasurable flow range
201-80.6-125-505-60
251.5-120.8-168-808-120
402.5-301.5-4020-20018-300
503-502-6030-30030-500
655-803-9050-50050-900
808-1205-15080-100060-1200
10012-2006-240100-1000100-2000
12520-30013-390150-1600150-3000
15030-40015-600250-2500200-4000
20040-80030-1200400-4000350-8000
25080-12040-1600600-6000500-1200
300100-180050-20001000-10000600-18000