Technical Parameter

Instrument version

LZZH LZDH Series

Flow range

Water 2.5~100000L/h Air 0.07~800m3/h (See table below)

Range ration

DN≤100mm: 10:1DN＞100mm: 5:1

Accuracy

Standard type:±2.5%FS, Special order: can be up to ±1.5 %FS

Maximum working Pressure

DN15，DN25，DN40，DN50：4.0MPa DN80,DN100,DN150:1.6MPa

Maximum workingn Pressure

Normal type H1:-40℃~100℃， High temperature type H2:-80℃~250℃

Environment temperature

-25℃~+55℃

Connection form

Flange connection(Flange standard: Refer to GB9115-88,JB82-59), can be made in accordance with the user's requirement.

Explosion-proof class

ExibⅡCT4 together with the safety battier LB987S Explosion-proof number of certificate GYB00563

Protection grade

IP65

Viscidity

DN15：≤5mPa·s, DN25~DN150: ≤250mPa·s

Products executive standard

JB/T6844-1993

Specification

Diameter (mm)

Working code

Flow range

Pressure loss kPa

Water L/h*

Air m3/h*

Water

Air

Normal type

Corrosion-proof type

Normal type

Normal typeCorrosion-proof type

Corrosion-proof type

Air

1A 1B 1C 1D 1E 1F 1G 1H 2A 2B 2C 2D 4A 4B 5A 5B 5C 8A 8B 10A 15A

2.5~25 4.0~40 6.3~63 10~100 16~160 25~250 40~400 63~630 100~1000 160~1600 250~2500 400~4000 500~5000 600~6000 630~6300 1000~10000 1600~16000 2500~25000 4000~40000 6300~63000 20000~100000

— — 2.5~25 4.0~40 6.3~63 10~100 16~160 25~250 40~400 63~630 100~1000 160~1600 250~2500 300~3000 350~3500 400~4000 630~6300 1000~10000 1600~16000 2500~25000 4000~40000 ——

0.07~0.7 0.11~1.1 0.18~1.8 0.28~2.8 0.48~4.8 0.7~7.0 1.0~10 1.6~16.0 3~30 4.5~45 7~70 11~110 12~120 16~160 18~180 25~250 40~400 60~600 80~800 —— ——

6.5 6.5 6.6 6.6 6.8 7.0 8.6 11.1 7.0 8.0 10.8 15.8 10.8 12.6 8.1 11.0 17.0 8.1 9.5 15.0 19.2

— 5.5 5.5 5.6 5.6 5.8 6.1 7.3 5.9 6.0 6.8 9.2 8.6 10.4 6.8 9.4 14.5 6.9 8.0 8.5 —

7.1 7.2 7.3 7.5 8.0 10.8 10.0 14.0 7.7 8.8 12.0 19.0 9.8 16.5 8.6 10.4 15.5 12.9 18.5 19.2 20.3

15

25

540

50

80

100

150

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