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Remote type vortex flow meter
Remote type vortex flow meter
Remote type vortex flow meter
Remote type vortex flow meter

Remote type vortex flow meter

Measured Medium: Liquid, Gas, Steam
Accuracy: 1.0%
Nominal Pressure: 1.6MPa;2.5MPa;4.0MPa;6.4MPa(Other pressure can be custom,need consult supplier)
Medium Temp: -40℃~+200℃; -40℃~+280℃; 40℃~+350℃
Flow Range: Liquid:0.4-7.0m/s; Gas:4.0-60.0m/s; Steam:5.0-70.0m/s
Technical Data
Remote Wallmounted Vortex Flow Meter is used in numerous branches of industry to measure the volume flow of liquids, gases and steam. Applications in the chemicals and petrochemicals industries, for example, in power generation and heat-supply systems involve widely differing fluids: saturated steam, superheated steam, compressed air, nitrogen, liquefied gases, flue gases, carbon dioxide, fully demineralized water, solvents, heat-transfer oils, boiler feedwater, condensate, etc. 
Vortex flow meter advantages and disadvantages
Vortex flow meter body is robust and universally applicable for liquids, gases and steam,optimized for steam applications.
For gases measurement, if the gas temperature and pressure change a lot, pressure and temperature compensation will be a must, vortex flow meter could add temperature and pressure compensation.
Q & T Vortex flow meter adopt Japan OVAL technology and design. 
To protect the sensor, Q&T vortex flow meter choose embedded sensor, with 4 piezo-electric crystal encapsulated inside the sensor, which is our own patent.
There is no moving parts, no abrasion, non-wearing parts inside the vortex flow meter sensor, fully welded SS304 body (SS316 selectable). 
With patented sensor and flow sensor body, Q&T vortex flow meter could eliminate drift & vibration influence from great aspect in the working site while compare with other flow meters.
Apart from electromagnetic flow meter and ultrasonic flow meter could work as flow meter and BTU meter, add the temperature sensor and totalizer, vortex flow meter could also work as BTU meter and measure steam or hot water energy.
Requires very few power consumption: 24 VDC, 15 Watts maximum; 
In gas measurement, vortex flow meter could achieve high accuracy ±0.75%~±1.0% of reading ( gas ±1.0%, liquid ±0.75%); which could use in custody transfer , while the metal tube rotameter or orifice plate usually use for process control.
With a variety of signals outputs and selection, such as 4-20mA, pulse with HART or pulse with RS485 are selectable.
In the electronic device of measuring flow, vortex flow meter is the only one could resist wide temperature range up to highest temperature 350℃, digital flow meter highest process temperature.
Vortex flow meter applications
Vortex flow meter is professional in measuring non-conductive liquids, gases, saturated and superheated steam, especially for steam measurement trade settlement.
Except work as flow meter, vortex flow meter can also work as heat meter to measure the Gross/net heat of steam and hot water.
Vortex flow meter usually monitor the compressor output and evaluation of Free Air Delivery (FAD)
There has lots of Industrial gases, such as natural gas, nitrogen gas, liquefied gases, flue gases, carbon dioxide etc, all could use vortex flow meter.
In many factories, compressed air monitoring is very important, vortex flow meter also could use for process control.
Besides the different gases measurement, vortex flow meter could also used for light oil or any purified water,such as thermal oils, Desalinated water, demineralized water, RO water, boiler feed water, condensate water etc. 
In the Chemicals and petrochemicals industries, there also has lots of gases or liquid could use vortex flow meter for monitoring.
Water Treatment
Water Treatment
Food Industry
Food Industry
Pharmaceutical Industry
Pharmaceutical Industry
Paper Industry
Paper Industry
Chemical Monitoring
Chemical Monitoring
Metallurgical Industry
Metallurgical Industry
Public Drainage
Public Drainage
Coal Industry
Coal Industry
Technical Data

Table 1: Remote Wallmounted Vortex Flow Meter Technical Data

Measured Medium Liquid, Gas, Steam
Medium Temp -40℃~+200℃; -40℃~+280℃; 40℃~+350℃
Nominal Pressure 1.6MPa;2.5MPa;4.0MPa(Other pressure can be custom,need consult supplier)
Accuracy 1.0%(Flange), 1.5%(Insertion)
Measuring range ratio 1:10(Standard air condition as reference)
Flow Range Liquid:0.4-7.0m/s; Gas:4.0-60.0m/s; Steam:5.0-70.0m/s
Specifications DN15-DN300(Flange), DN80-DN2000(Insertion), DN15-DN100(Thread), DN15-DN300(Wafer), DN15-DN100(Sanitary)
Material SS304(Standard), SS316(Optional)
Pressure Loss Coefficient Cd≤2.6
Vibration Acceleration Allowed ≤0.2g
Ambient Condition Ambient Temp:-40℃-65℃(Non-explosion-proof site); -20℃-55℃(Explosion-proof site)
Relative Humidity:≤85%
Power Supply 12-24V/DC or 3.6V battery powered
Signal Output Pulse frequency signal 2-3000Hz, Low level≤1V, high level≥6V
Two-wire system 4-20 signal(isolated output), Load≤500

Table 2: Remote Wallmounted Vortex Flow Meter Structure Drawing

Remote Wallmounted Vortex Flow Meter Drawing (DIN PN16)
Caliber(mm) L H D K n d
15 170 440 95 65 4 14
20 170 446 105 75 4 14
25 170 450 115 85 4 14
32 170 463 140 100 4 18
40 190 465 150 110 4 18
50 190 470 165 125 4 18
65 220 487 185 145 4 18
80 220 500 200 160 8 18
100 240 533 220 180 8 18
125 260 560 250 210 8 18
150 280 608 285 240 8 22
200 300 640 340 295 12 22
250 360 705 405 355 12 26
300 400 408 460 410 12 26

Table 3: Remote Wallmounted Vortex Flow Meter Flow Range 

Size(mm) Liquid(Reference medium:normal temperature water, m³/h) Gas(Reference medium:20℃, 101325pa condition air, m³/h)
Standard Extended Standard Extended
15 0.8~6 0.5~8 6~40 5~50
20 1~8 0.5~12 8~50 6~60
25 1.5~12 0.8~16 10~80 8~120
40 2.5~30 2~40 25~200 20~300
50 3~50 2.5~60 30~300 25~500
65 5~80 4~100 50~500 40~800
80 8~120 6~160 80~800 60~1200
100 12~200 8~250 120~1200 100~2000
125 20~300 12~400 160~1600 150~3000
150 30~400 18~600 250~2500 200~4000
200 50~800 30~1200 400~4000 350~8000
250 80~1200 40~1600 600~6000 500~12000
300 100~1600 60~2500 1000~10000 600~16000
400 200~3000 120~5000 1600~16000 1000~25000
500 300~5000 200~8000 2500~25000 1600~40000
600 500~8000 300~10000 4000~40000 2500~60000

Table 4: Vortex Flow Meter Model Selection

DN15-DN300 Reference Code,
please check caliber code table 10
1.6Mpa 1
2.5Mpa 2
4.0Mpa 3
Others 4
Connection Flange 1
Wafer  2
Tri-clamp(Sanitary) 3
Thread 4
Insertion  5
Others 6
Medium Liquid 1
Common Gas 2
Saturated Steam 3
Superheated Steam 4
Others 5
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  
Compact/Integral 1
Remote 2
Power Supply DC24V  D
3.6V Lithium Battery E
Others G
4-20mA  A 
Pulse B
4-20mA,HART C
4-20mA/Pulse,RS485 D
4-20mA/Pulse,HART E
Others F
Flange Standard DIN PN16 1
DIN PN25 2
DIN PN40 3
ANSI 150# A
ANSI 300# B
ANSI 600# C
Others G
Vortex Flow Meter Installation Requirements
The installation of vortex flow meter has higher requirements, to guarantee the better accuracy and working properly.
Vortex flow meter installation should keep away from the electric motors, big frequency converter, power cable, transformers, etc.
Do not install in the position where there has bends, valves, fittings, pumps etc, which could cause flow disturbances and influence the measurement.
The front straight pipe line and after straight pipe line should follow below suggestion.

Concentric Reducers Pipeline

Concentric Expansion Pipeline

Single Square Bend

Two Square Bends At Same Plane

Two Square Bends At Different Plane

Regulating Valve、Half-open Gate Valve
Vortex Flow Meter Daily Maintenance
Regular cleaning: The probe is an important structure of the vortex flowmeter. If the detection hole of the probe is blocked, or is entangled or wrapped by other objects, it will affect the normal measurement, resulting in inaccurate results;
Moisture-proof treatment: most of the probes have not undergone moisture-proof treatment. If the use environment is relatively humid or is not dried after cleaning, the performance of the vortex flow meter will be affected to a certain extent, resulting in poor operation;
Minimize external interference: strictly check the grounding and shielding conditions of the flow meter to ensure the accuracy of the flow meter measurement;
Avoid vibration: There are some parts inside the vortex flowmeter. If strong vibration occurs, it will cause internal deformation or fracture. At the same time, avoid the inflow of corrosive liquid.
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