Product Description
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Bottom- rear in and Top-rear out |
Bottom in and Top out |
■Structure and principle
Used for the measurement of micro flowrate of liquids and gases. All-metal structure, With the characteristics of small volume, low pressure loss, etc, Widely used in various industries which is complex and harsh environment. Measure and process control for micro flowrate, low flow rates, various harsh media conditions. Especially suitable for measuring turbid, opaque or corrosive fluids.
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Composition: 1.Body 2.Measuring tube 3.Flouter 4.Header 5.Magnetic coupling system 6.Electrical cable |
■The main technical parameters
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Measuring Range |
Water (20℃) 1-3000I/h air (0.1013MPa 20℃) 0.5-900001/h |
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Range Ratio |
10:1 |
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Accuracy Class |
2.5/4.0 |
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Work Pressure |
PN16MPa |
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Medium Temperature |
Standard type -40℃~ +120℃ |
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Ambient Temperature |
-40℃~ +80℃ |
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Medium Viscosity |
1/4″NPT, 3/8″NPT, 1/2″NPT≤5mPa.s 3/4″NPT, 1″NPT≤250mPa.s |
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Output |
Tagging signal: two-wire system 4~20mA (24 VDC power supply) |
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power Supply |
24VDC±20% |
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Connection Method |
Bottom-rear in and Top-rear out: 1/4″NPT (F)thread Bottom in and Top out: 1/4″NPT 3/8″NPT 1/2″NPT 3/4″NPT 1″NPT (F)thread |
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Electrical Interface |
M8* 1 or User specifications |
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Protection Class |
IP65 |
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Explosion-Proof Marks |
Intrinsically safe type: ExialICT 3~6 |
■Selection table
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LZZX |
Structure form |
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H V |
Bottom- rear in and Top-rear out Bottom in and Top out |
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Measuring tube ’s material which contact liquid |
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R0 R1 R2 R3 |
316L Stainless steel 304 Stainless steel HC-276 alloy Titanium alloy |
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Backstop and O-rings Material |
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A B C D |
PTFE/Buna PVDF/Viton PVDF/Buna PTFE/ Kalrez |
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Indicator |
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Default D K1 K2 K12 EK1 EK2 Ek12 |
The pointer display instantaneous flow rate Remote 4-20mA Two-wire current signal. intrinsically safe explosion-proof. Explosion-proof marks: ExiallCT 3-6 High alarm limit (24VDC Three-wire output) Lower alarm limit (24VDC Three-wire output) High and lower alarm limit (24VDC Three-wire output) High alarm limit (8.2VDC Two-wire output namur) Lower alarm limit (8.2VDC Two-wire output namur) High and lower alarm limit (8.2VDC Two-wire output namur) |
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Connection method |
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1 2 3 4 |
NPT1/4″ NPT3/8″ NPT1/2″ NPT3/4″ |
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■Dimensions
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Mode |
Flow range (Water) |
a |
b |
C |
d |
e |
f |
g |
Installation method |
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LZZX-6 |
≤100l/h |
SW19 |
18 |
125 |
29 |
NPT1/4” |
34 |
29 |
Bottom-rear in and Top-rear out Bottom in and Top out |
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LZZX-10 |
100-300l/h |
SW24 |
25 |
164 |
48 |
NPT3/8” |
30.5 |
32.5 |
Bottom in and Top out |
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LZZX-15 |
400-800l/h |
SW27 |
25 |
164 |
48.5 |
NPT1/2” |
30.5 |
32.5 |
Bottom in and Top out |
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LZZX-25 |
800-3000l/h |
SW50 |
50 |
230 |
81 |
NPT1” |
18 |
45/50 |
Bottom in and Top out |
■Flow table
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Model |
Measuring range |
Pressure loss mbar |
Connection thread |
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Water(l/h) |
Air(l/h) |
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LZZX-6 |
0.1-1 |
3.5-35 |
8 |
(F) NPT1/4″ |
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0.16-1.6 |
5.4-54 |
8 |
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0.25-2.5 |
10-100 |
8 |
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0.4-4 |
16-160 |
8 |
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0.6-6 |
23-230 |
8 |
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1-10 |
35-350 |
8 |
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1.6-16 |
54-540 |
8 |
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2.5-25 |
85-850 |
9 |
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4-40 |
125-1250 |
10.5 |
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6-60 |
190-1900 |
12.5 |
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10-100 |
310-3100 |
17 |
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LZZX-10 |
10-100 |
320-3200 |
8 |
(F) NPT3/8″ |
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16-160 |
500-5000 |
8 |
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20-200 |
600-6000 |
8 |
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25-250 |
800-8000 |
8 |
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30-300 |
900-9000 |
8 |
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LZZX-15 |
40-400 |
1200-12000 |
8 |
(F) NPT1/2″ |
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50-500 |
1500-15000 |
8 |
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60-600 |
1800-18000 |
8 |
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80-800 |
2400-24000 |
8 |
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LZZX-25 |
80-800 |
2400-24000 |
3 |
(F) NPT3/4″ (F) NPT1″ |
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100-1000 |
3000-30000 |
3 |
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160-1600 |
4500-45000 |
3 |
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200-2000 |
6000-60000 |
3 |
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250-2500 |
7500-75000 |
3 |
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300-3000 |
9000-90000 |
3 |
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