Fluid to measure

Liquid, steam, gas

Nominal diameter

Wafer/Flanged(ANSI/DN/DIN/JIS):15mm~300mm(1/2"~12") Insertion:300mm~700mm(12"~28")

Measurement range（m/s）

Liquid 0.5～7　　 steam or gas 5～70

Accuracy

±1% RD (insertion is 1.5%RD)
Gas or steam：±1.0%RD

Repeatability

0.3% RD (insertion is 1.5%RD)

Output

4-20mA@ HART　/　RS-485

Process Temperature Range

-40℃~280℃ ; -40℃~350℃ ;

Process Pressure Limit

–0.1 MPa (–1 kg/cm2) to flange rating

Ambient Temperature Range

-40～85℃

Ambient Humidity

5～100%RH

Electrical Connection

1/2 NPT, M20 × 1.5

Materials

304 SS, 316 SS, 316L SS

Normal Dialmeter
DN

Inches
Inches

Inside Diameter
mm

Flow Rate
m/s

Volume Flow
Nm3/h

DN15

1/2 "

16.1

10~70

6.4~44.5

DN20

3/4 "

21.7

10~70

11.3~79.1

DN25

1"

27.3

8~70

14.1~123.6

DN32

11/4 "

36.0

8~70

23.1~202.5

DN40

11/2 "

41.9

5~70

22.6~316.4

DN50

2"

53.1

5~70

35.3~494.4

DN65

21/2 "

68.9

5~70

59.7~835.5

DN80

3"

80.9

5~70

90.1~1265.5

DN100

4"

100.0

5~70

141.2~1977.4

DN125

5"

125.0

5~70

220.7~3089.7

DN150

6"

150.0

5~70

317.8~4449.2

DN200

8"

200.0

5~70

565~7909.6

DN250

10"

250.0

5~70

882.8~12358.8

DN300

12"

300.0

5~70

1271.2~17796.6

1

General model

VFM45-N

Vortex flowmeter 
without
integral RTD and
pressure sensor

Standard

VFM45-M

Vortex mass flowmeter with 
integral RTD
and pressure sensor

Option

2

Transmitter

Location

T

Integral

Standard

The standard remote cable length is 10m, if you required longer cable, please let us know

R

Remote

Option

3

Process connection

0

Insertion

Option

Insertion for DN80~700, wafer and flanged type for pipes smaller than 300mm

1

Flanged

Standard

2

Wafer

Option

3

Downsized wafer

Option

4

Fluid type

1

Liquid

Standard

If the fluid is steam, please  advise if it is saturated or superheated

2

Gas

Option

3

Steam

Option

5

Wetted part material

1

OCr18Ni9(304)

Standard

For other materials, please advise your speical requirement. Any material will cause a longer production time except 304SS

2

316

Option

Q

Other

Option

6

Pressure rating

3

1.6

Standard

4

2.5

Option

5

4

Option

6

6.3

Option

7

10

Option

8

16

Option

7

Medium Temperature

N

T≤120℃

Standard

If the temperature is higher than 350 degreeCor lower than 40 degree C, please advise us to check if we can do

S

T≤280℃

Option

H

T≤350℃ (wafer or flanged)

Option

8

Transmitter

1

pulse/4~20mA

Standard

The HART signal is output though 4~20mA.

2

Battery power/pulse

Option

3

pulse/4~20mA@HART

Option

4

pulse/RS485

Option

5

pulse/RS485
/T&P compensation

Option

7

pulse/4~20mA
/T&P compensation

Option

9

Cable grinder

N

M20x1.5

Standard

D

1/2" NPI

Option

Q

Other

Option

Pipe size

xxx

xxx

This 3 digits code indicates the inner diameter of the pipe, for example, if he pipe is DN50, the code is 050. If the pipe is DN200, the code is 200