metal tube rotameter
Standard LZ series metal rotameter flowmeters are composed of one measuring pipe and on side indicator.The site indicator can be installed also with additional electric devices, suitable for liquid and gas measurement. The flowmeter adopts variable area measuring principle. The measuring device is composed of one taper measuring pipe and floater. The floater can move freely up and down in the taper measuring pipe to change the flow area in the pipe.When the flow changes, the vertical position of the floater inside the measuring pipe changes correspondingly.Through magnetic transmitting system, the position of the floater is transmitted to the dial scale of the indicator to indicate the flow. In M6、M8、 M9 indicator, the follow-up magnet movement is transmitted directly to the dial scale.In M7 indicator, when the follow-up magnet rotates, the needle driven by the cam plate indicates linearly the flow.
2).Short stroke、compact structure.
3).Low pressure loss design.
4).New style magnetic coupling structure ensures that the signal transmission is more stable.
5).Magnetic filter can be added as customer requirements.
6).Thermal insulation or tracing heat jacket.
7).Used in the gas and liquid measurement in all industries. The measurment parts can adopt different
materials to be suitable for different medias.
8).Suitable for harsh environment and seriously corrosion media. Having good heat resistance
and pressure resistance.
9).Intelligent dual-line LCD display,on site instant/cumulative flow display and back light as options.
10).Two-wire system、battery、alternating current can be choosed to supply the power.
11).With data recovery、data backup and powerfail protection functions.
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Meter type |
LZ series metal spinner flowmeters |
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Meter type |
LZ series metal spinner flowmeters |
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Measuring range (100% point value) |
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GB/T9119 Flange |
DN15～DN100 |
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Water(20℃) |
（25-100.000）L/h |
HG20592-20635法兰 |
DN15～DN100 |
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Air(101325Pa,20℃) |
（0.7-1000）m³/h |
ANSI Flange |
1/2”～4”150lbs/RF or 300lbs/RF |
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Range ratio |
1:10 |
Sanitary connection |
DN15～DN100 |
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Accuracy class |
1.5；2.5 |
Thermal insulation jacket flange |
DN15(standard type);Other special types can be ordered. |
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Measuring pipe |
Taper measuring pipe |
Level of protection |
IP65 |
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Dial scale distribution |
Divided according to flow unit |
Explosion-proof |
Exiallct2-t6 only rM9 indicators |
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Test pressure |
1.5 times of rated pressure |
Flameproof |
ExdllBT1-T6 (only M8 indicator) |
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Meter bore |
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Media temperature |
LZZ site indication |
-40℃-+350℃(site indication) |
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Flange connection |
DN15～DN100或1/2”～4” |
LZD electric transmission |
-40℃+80℃(conventional type/with PTFE liningPTFE）
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Thermal insulation jacket |
DN15～DN100 |
-80℃-+300℃(high temperature type) |
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Food grade connection |
DN15～DN100 |
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LCD display |
Instant flow display:0-50000 |
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Cumulative flow display:8 digits(can with decimal point ) |
Ambient temperature |
-25℃-+55℃ |
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Alarm output |
Alarm of upper and lower limit instant flow |
Viscosity |
DN15:≤5mPa.s;DN25-DN100:≤250mPa.s |
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Electrode open circuit output(maximum 100mA,30VDC internal impedance 100Ω) |
Power supply |
Standard type:24VDC,two-wire system:4-20mA(18VDC-30VDC) |
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Alternating current type:85-265VAC,50Hz |
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Relay output(contact capacity 1A,30VDC or 0.25A,250VAC or 0.5A,125VAC) |
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Battery type:3.6V,7.5AH Lithium battery |
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Cable Interface |
M16x1.5;M20x1.5 |
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Flameproof enclosure:1/2NPT internal thread |
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Flow table |
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CAL |
Water(L/h)20℃0.101325Mpa |
air(m3/h)20℃0.101325Mpa |
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Classes |
Nomonal diameter |
float(CrNi Hc) |
float(PTFE Ti) |
float(CrNi Hc) |
float(PTFE Ti) |
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4.0Mpa |
15 |
1.6-16 |
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0.05-0.5 |
0.075-0.75 |
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2.5-25 |
2.5-25 |
0.075-0.75 |
0.12-1.2 |
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4.0-40 |
4.0-40 |
0.12-1.2 |
0.18-1.8 |
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6.0-60 |
6.0-60 |
0.18-1.8 |
0.30-3.0 |
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10-100 |
10-100 |
0.30-3.0 |
0.45-4.5 |
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16-160 |
16-160 |
0.45-4.5 |
0.75-7.5 |
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25-250 |
25-250 |
0.75-7.5 |
1.2-12 |
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40-400 |
40-400 |
1.2-12 |
1.8-18 |
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60-600 |
60-600 |
1.8-18 |
0.75-7.5 |
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20 |
40-400 |
25-250 |
0.75-7.5 |
1.2-12 |
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60-600 |
40-400 |
1.2-12 |
1.8-18 |
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100-1000 |
60-600 |
1.8-18 |
3.0-30 |
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25 |
100-1000 |
100-1000 |
3.0-30 |
5.0-50 |
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160-1600 |
120-1200 |
5.0-50 |
7.5-75 |
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250-2500 |
160-1600 |
7.5-75 |
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400-4000 |
250-2500 |
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3.0-30 |
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32 |
160-1600 |
120-1200 |
5.0-50 |
5.0-50 |
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250-2500 |
160-1600 |
7.5-75 |
7.5-75 |
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400-4000 |
250-2500 |
12-120 |
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600-6000 |
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3.0-30 |
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40 |
400-4000 |
100-1000 |
7.5-75 |
5.0-50 |
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600-6000 |
160-1600 |
12-120 |
7.5-75 |
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1000-10000 |
250-2500 |
18-180 |
12-120 |
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50 |
600-6000 |
400-4000 |
12-120 |
18-180 |
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1000-10000 |
600-6000 |
18-180 |
30-300 |
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1600-16000 |
1000-10000 |
30-300 |
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2000-20000 |
1200-12000 |
37-370 |
18-180 |
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1.6Mpa |
65 |
1200-12000 |
600-6000 |
18-180 |
30-300 |
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1600-16000 |
1000-10000 |
30-300 |
37-370 |
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2500-25000 |
1200-12000 |
37-370 |
50-500 |
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80 |
2500-25000 |
1600-16000 |
37-370 |
75-750 |
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4000-40000 |
2500-25000 |
75-750 |
120-1200 |
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100 |
4000-40000 |
2500-25000 |
120-1200 |
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6000-60000 |
4000-40000 |
180-1800 |
120-1200 |
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125 |
8000-80000 |
4000-40000 |
120-1200 |
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10000-100000 |
6000-60000 |
180-1800 |
180-1800 |
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150 |
12000-120000 |
6000-60000 |
200-2000 |
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15000-150000 |
8000-80000 |
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Specifications |
Contour dimension |
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Symbols |
B |
C |
D |
E |
F |
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DN15 |
74 |
4-Φ14 |
Φ65 |
Φ95 |
164 |
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DN20 |
80 |
4-Φ14 |
Φ75 |
Φ105 |
164 |
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DN25 |
84 |
4-Φ14 |
Φ85 |
Φ115 |
164 |
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DN40 |
93 |
4-Φ18 |
Φ110 |
Φ150 |
164 |
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DN50 |
99 |
4-Φ18 |
Φ125 |
Φ165 |
164 |
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DN65 |
109 |
8-Φ18 |
Φ145 |
Φ185 |
164 |
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DN80 |
115 |
8-Φ18 |
Φ160 |
Φ200 |
164 |
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DN100 |
121 |
8-Φ18 |
Φ180 |
Φ220 |
164 |
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DN125 |
145 |
8-Φ18 |
Φ210 |
Φ250 |
215 |
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DN150 |
158 |
8-Φ22 |
Φ240 |
Φ285 |
21 |
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Specifications |
Contour dimension |
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Symbols |
B |
C |
D |
E |
F |
G |
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DN15 |
108 |
4-Φ14 |
Φ65 |
Φ95 |
183 |
160 |
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DN20 |
114 |
4-Φ14 |
Φ75 |
Φ105 |
183 |
160 |
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DN25 |
118 |
4-Φ14 |
Φ85 |
Φ115 |
183 |
160 |
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DN40 |
128 |
4-Φ18 |
Φ110 |
Φ150 |
183 |
160 |
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DN50 |
133 |
4-Φ18 |
Φ125 |
Φ165 |
183 |
160 |
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DN65 |
143 |
8-Φ18 |
Φ145 |
Φ185 |
183 |
155 |
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DN80 |
150 |
8-Φ18 |
Φ160 |
Φ200 |
183 |
155 |
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DN100 |
156 |
8-Φ18 |
Φ180 |
Φ220 |
183 |
155 |
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DN125 |
180 |
8-Φ18 |
Φ210 |
Φ250 |
233 |
160 |
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DN150 |
193 |
8-Φ22 |
Φ240 |
Φ285 |
233 |
160 |
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Specifications |
Contour dimension |
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Symbols |
B |
C |
D |
E |
G |
H |
L |
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DN15 |
83 |
4-Φ14 |
Φ65 |
Φ95 |
132 |
295 |
250 |
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DN20 |
91 |
4-Φ14 |
Φ75 |
Φ105 |
130 |
293 |
250 |
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DN25 |
93 |
4-Φ14 |
Φ85 |
Φ115 |
130 |
293 |
250 |
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DN40 |
73 |
4-Φ18 |
Φ110 |
Φ150 |
387 |
478 |
250 |
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DN50 |
73 |
4-Φ18 |
Φ125 |
Φ165 |
477 |
568 |
250 |
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DN65 |
80 |
8-Φ18 |
Φ145 |
Φ185 |
467 |
558 |
250 |
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DN80 |
80 |
8-Φ18 |
Φ160 |
Φ200 |
510 |
601 |
400 |
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DN100 |
80 |
8-Φ18 |
Φ180 |
Φ220 |
502 |
593 |
400 |
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Specifications |
Contour dimension |
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Symbols |
B |
C |
D |
E |
G |
H |
L |
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DN15 |
117 |
4-Φ14 |
Φ65 |
Φ95 |
168 |
295 |
250 |
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DN20 |
123 |
4-Φ14 |
Φ75 |
Φ105 |
166 |
293 |
250 |
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DN25 |
127 |
4-Φ14 |
Φ85 |
Φ115 |
166 |
293 |
250 |
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DN40 |
107 |
4-Φ18 |
Φ110 |
Φ150 |
423 |
495 |
250 |
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DN50 |
107 |
4-Φ18 |
Φ125 |
Φ165 |
513 |
585 |
250 |
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DN65 |
114 |
8-Φ18 |
Φ145 |
Φ185 |
503 |
575 |
250 |
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DN80 |
114 |
8-Φ18 |
Φ160 |
Φ200 |
546 |
618 |
400 |
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DN100 |
114 |
8-Φ18 |
Φ180 |
Φ220 |
538 |
610 |
400 |
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