Instrument caliber and connection method

4. 6, 10, 15, 20, 25, 32, 40 are connected by threads

(15, 20, 25, 32, 40) 50, 65, 80, 100, 125, 150, 200 are connected by flanges

accuracy class

± 1% R, ± 0.5% R, ± 0.2% R (to be customized)

Range ratio

1:10； 1:15； 1:20

Instrument material

304 stainless steel, 316 (L) stainless steel, etc

Temperature of the tested medium (℃)

-20～＋120℃

environmental condition

Temperature -10~+55 ℃, relative humidity 5%~90%, atmospheric pressure 86~106Kpa

output signal

Sensor: Pulse frequency signal, low level ≤ 0.8V, high level ≥ 8V

Transmitter: two-wire 4-20mADC current signal

power supply

Sensor:+12VDC,+24VDC (optional)

Transmitter:+24VDC

On site display type: The instrument comes with a 3.2V lithium battery

Signal transmission line

STVPV3 × 0.3 (three wire system), 2 × 0.3 (two wire system)

Distance

≤1000m

Signal line interface

Basic type: Hausman connector, explosion-proof type: internal thread M20 × 1.5

Explosion proof grade

Basic Type: Non Explosion proof Product, Explosion proof Type: ExdIIBT6

protection grade

IP65

Instrument caliber

（mm）

Normal flow range

（m3/h）

Expand traffic range

（m3/h）

Default installation method and voltage rating

Optional installation methods and default voltage rating

Specially designed pressure resistance level

（MPa）

DN4

0.04～0.25

0.04～0.4

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

12. 16, 25

DN6

0.1～0.6

0.06～0.6

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

12. 16, 25

DN10

0.2～1.2

0.15～1.5

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

12. 16, 25

DN15

0.6～6

0.4～8

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

4.0, 6.3, 12, 16, 25

DN20

0.8～8

0.45～9

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

4.0, 6.3, 12, 16, 25

DN25

1~10

0.5～10

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

4.0, 6.3, 12, 16, 25

DN32

1.5～15

0.8～15

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

4.0, 6.3, 12, 16, 25

DN40

2~20

1~20

Threaded installation, 6.3Mpa

Flange installation, 2.5MPa

4.0, 6.3, 12, 16, 25

DN50

4~40

2~40

Flange installation, 2.5Mpa

Threaded connection, 6.3MPa

4.0, 6.3, 12, 16, 25

DN65

7~70

4~70

Flange installation, 1.6Mpa

Threaded connection, 6.3MPa

4.0, 6.3, 12, 16, 25

DN80

10~100

5~100

Flange installation, 1.6Mpa

Threaded connection, 6.3MPa

4.0, 6.3, 12, 16, 25

DN100

20~200

10~200

Flange installation, 1.6Mpa

4.0, 6.3, 12, 16, 25

DN125

25~250

13~250

Flange installation, 1.6Mpa

2.5, 4.0, 6.3, 12, 16

DN150

30~300

15~300

Flange installation, 1.6Mpa

2.5, 4.0, 6.3, 12, 16

DN200

80~800

40~800

Flange installation, 1.6Mpa

2.5, 4.0, 6.3, 12, 16

model

describe

LWGY

Basic type, powered by+5-24DCV, without on-site display

LWGB

4-20mA two-wire current output, without on-site display

LWY

Battery powered on-site display type

LWYC

On site display/4~20mA two-wire current output

state-owned

call

open up or clear out by poking or jabbing

footpath

4

4mm， The standard range is 0.04-0.25m3/h, and the wide range is 0.04-0.4m3/h

6

6mm， The standard range is 0.1-0.6m3/h, and the width measuring wheel is 0.06-0.6m3/h

10

10mm， The standard range is 0.2-1.2m3/h, and the wide range is 0.15-1.5m3/h

15

15mm， The standard range is 0.6-6m3/h, and the wide range is 0.4-8m3/h

20

20mm， The standard range is 0.8-8m3/h, and the wide range is 0.4-8m3/h

25

25mm， The standard range is 1-10m3/h, and the wide range is 0.5-10m3/h

32

32mm， The standard range is 1.5-15m3/h, and the wide range is 0.8-15m3/h

40

40mm， The standard range is 2-20m3/h, and the wide range is 1-20m3/h

50

50mm， The standard range is 4-40m3/h, and the wide range is 2-40m3/h

65

65mm， The standard range is 7-70m3/h, and the wide range is 4-70m3/h

80

80mm， The standard range is 10-100m3/h, and the wide range is 5-100m3/h

100

100mm， The standard range is 20-200m3/h, and the wide range is 10-200m3/h

125

125mm， The standard range is 25-250m3/h, and the wide range is 13-250m3/h

150

150mm， The standard range is 30-300m3/h, and the wide range is 15-300m3/h

200

200mm， The standard range is 80-800m3/h, and the wide range is 40-800m3/h

communication

C1

On site display/RS485 communication protocol

C2

On site display/ART communication protocol

accuracy class

05

Accuracy level 0.5

10

Accuracy level 1.0

turbine

type

W

Wide range turbine

S

Standard turbine

material

S

304 stainless steel

L

316 (L) stainless steel

P

Rubber and Plastic

explosion-proof

Unmarked, non explosion proof type

E

Explosion proof type (Exm Ⅱ CT6 or Exd Ⅱ BT6)

pressure rating

N

Conventional (refer to measurement range and working pressure gauge)