LUGB / E-type vortex flow meter is widely used in petroleum, chemical, metallurgical, thermal, textile, paper and other industries of the superheated steam, saturated steam, compressed air and the general gases (oxygen, nitrogen , natural gas, coal gas, etc.), water and liquid (such as: water, gasoline, alcohol, benzene, etc.) the measurement and control.
In fluid set of non-streamlined body vortex occurred (obstructing fluid), from the body on both sides of the vortex occurred alternately produce two regular vortices,such as the Kaman Vortex, as showed in Figure (1):
（Figure 1）
| Caliber (mm) |
Liquid | Gas | ||
| Measurement Range (M / h) | Output Frequency Range (HZ) | Measurement Range (M / h) | Output Frequency Range (HZ) | |
| 15 | 0.4-4 | 40-400 | 2.8-12 | 278-1190 |
| 20 | 0.7-7 | 26-260 | 6-30 | 226-1130 |
| 25 | 1-10 | 21-210 | 8.8-55 | 190-1178 |
| 32 | 1.5-15 | 15-150 | 15-140 | 150-1395 |
| 40 | 2.5-25 | 13-130 | 25-205 | 126-1036 |
| 50 | 3.5-45 | 9-119 | 35-350 | 93-930 |
| 65 | 5.5-75 | 6.7-91 | 60-600 | 73-730 |
| 80 | 8.5-110 | 5.3-68 | 86-860 | 53-530 |
| 100 | 16-180 | 5.2-58 | 130-1300 | 42-420 |
| 125 | 25-270 | 4.3-49 | 220-2200 | 38-380 |
| 150 | 35-350 | 3.3-33 | 350-3500 | 33-330 |
| 200 | 66-650 | 2.6-26 | 550-5500 | 22-220 |
| 250 | 95-950 | 1.9-19 | 850-8500 | 18-180 |
| 300 | 150-1500 | 1.8-18 | 1350-13500 | 16-160 |
| （300） | 150-1500 | 5.5-87 | 1560-15600 | 85-880 |
| （400） | 180-3000 | 5.6-87 | 2750-27000 | 85-880 |
| （500） | 300-4500 | 5.6-88 | 4300-43000 | 85-880 |
| （600） | 450-6500 | 5.7-89 | 6100-61000 | 85-880 |
| （800） | 750-10000 | 5.7-88 | 11000-110000 | 85-880 |
| （1000） | 1200-17000 | 5.8-88 | 17000-170000 | 85-880 |
| ＞（1000） | Agreement | Agreement | ||
|
tape |
Description |
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LU |
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Vortex Flow Meter |
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G |
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sensor |
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Detection Way |
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B |
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Piezoelectric Sensors |
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E |
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Capacitive sensor |
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Connections |
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1 |
full tube only |
Flange connection type |
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2 |
full tube only |
Law palanka loaded type |
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3 |
Plug-in only |
Simple insertion |
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4 |
Plug-in only |
Ball insertion |
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5 |
Only for full pipe type |
Threaded connection type |
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6 |
Only for full pipe type |
Clamp type |
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7 |
Only for full pipe type |
Butt-welding type |
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Medium Wave Guide |
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2 |
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liquid gas steam |
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3 |
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4 |
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nominal size |
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02 … 30 A0 A8 |
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DN25 …
DN300 |
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Display text |
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E |
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English display |
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C |
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Chinese display |
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Use of environmental |
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P |
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normal |
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B |
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Explosion-proof |
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output signal |
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1 |
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24V DC pulse output, three-wire system |
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2 |
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24V DC intelligent with 4-20mA current output |
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3 |
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Intelligent 24V DC with RS-485 communication |
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4 |
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24V DC INTELLIGENT WITH HART protocol |
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5 |
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Battery power |
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Compensation Mode |
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O |
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No compensation |
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T |
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Temperature compensation |
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P |
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Pressure compensation |
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Z |
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Temperature and pressure compensation |
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Example Description |
Example: LUGE2405-P2 full tube capacitive Vortex Flowmeters, Law palanka loaded connectors, Medium is the steam, Instrumentation Path for DN50, normally the output signal is 4 ~ 20mA . |
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|
Caliber (mm) |
A |
B |
C |
CH |
|
15-25 |
70 |
55 |
390 |
455 |
|
|
40 |
85 |
80 |
385 |
440 |
|
|
50 |
85 |
90 |
390 |
450 |
|
|
65 |
85 |
105 |
400 |
470 |
|
|
80 |
90 |
120 |
420 |
480 |
|
|
100 |
85 |
140 |
440 |
500 |
|
|
125 |
95 |
168 |
465 |
530 |
|
|
150 |
100 |
194 |
490 |
560 |
|
|
200 |
102 |
248 |
545 |
610 |
|
|
250 |
115 |
300 |
600 |
660 |
|
|
300 |
130 |
350 |
650 |
710 |
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Caliber (mm) |
L |
|
25 |
60.5 |
|
|
300 |
58 |
|
|
400 |
65.5 |
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|
500 |
60.5 |
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|
600 |
55.5 |
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800-2000 |
45.5 |
1. Vortex Flow meter point on the installation of upstream and downstream straight pipe sections have certain requirements, otherwise, will affect the media in the pipeline in the flow field, the impact of instrument measurement accuracy. Meter upstream and downstream straight pipe length requirements see paragraph
| Sensor type upstream pipeline | Length of straight pipe before and after | Sensor type upstream pipeline | Length of straight pipe before and after |
| Concentric contraction of wide-open valve |  |
Concentric contraction of wide-open valve |  |
| The same plane two 90-degree bend |  |
Planar two different 90-degree bend |  |
| Expanding concentric tube |  |
Valve half-open valve (not Recommend) |  |
