air flow meter

Insertion type vortex flowmeter

Nominal(mm)

200,250,300,400,500,600,800,1000,1200,1500

Specification

Simple plug-in

Ball valve insertion type

Dismounting

disassembling after the flow cutoff

Without flow cutoff, assembly and disassembly 

after valve shut off

Model

A type

B type

Accuracy

±2.5%

±2.5%

Range Ratio

1:10;1:15

1:10;1:15

Display

optional

optional

Output

Optional: pulse or 4-20mA

Optional: pulse or 4-20mA

Signal interface

M20×1.5 Female

M20×1.5 Female

Communication interface

Optional RS485

Optional RS485

Supply Power

Sensor: +12VDC, +24VDC(optional)
Transmitter: +24VDC
Field Display type: instrument is equipped 

with a 3.2V lithium battery

Sensor: +12VDC, +24VDC(optional)
Transmitter: +24VDC
Field Display type: instrument is equipped 

with a 3.2V lithium battery

Output Signal

STVPV3×0.3(3-wire),2×0.3(2-wire)

STVPV3×0.3(3-wire),2×0.3(2-wire)

Transmission distance

≤500m

≤500m

Explosion-proof grade

ExdIIBT6 ot ExiaIICT4 optional

ExdIIBT6 ot ExiaIICT4 optional

Protection grade

IP65

IP65

Allowable vibration acceleration

1.0g

1.0g

Pressure loss coefficient

Cd<2.6

Cd<2.6

Power consumption

<1W

<1W

Instrument materials

1Cr18Ni 9Ti

1Cr18Ni 9Ti

Nominal pressure

PN1.6Mpa;PN2.5Mpa

PN1.6Mpa;PN2.5Mpa

measured medium temperature(°C)

-40~+250°C

-40~+250°C

Environmental conditions

Temperature: -0~+55°C, Relative humidity: 5%~90%, Atmospheric pressure: 86~106Kpa

Temperature: -0~+55°C, Relative humidity: 5%~90%, Atmospheric pressure: 86~106Kpa

Nominal diameter
(mm)

Measurement Range (m3/h)

Nominal Diameter
(mm)

Measurement Range (m3/h)

Liquid

Air

Liquid

Air

200

70-700

600-6000

500

450-4500

4200-42000

250

110-1100

1060-10600

600

600-6000

6100-61000

300

180-1800

1500-15000

800

800-8000

11000-110000

350

210-2100

2000-20000

1000

1200-12000

17000-170000

400

270-2700

2700-27000

1200

1800-18000

24000-240000

450

350-3500

3300-33000

1500

2600-26000

38000-380000