Products
1、 Product principle
The CH-LU steam vortex flowmeter is mainly used for flow measurement of industrial pipeline media fluids, such as gases, liquids, vapors, and other media. Its characteristics are small pressure loss, large range, high accuracy, and almost unaffected by parameters such as fluid density, pressure, temperature, viscosity, etc. when measuring volumetric flow rate under working conditions. No movable mechanical parts, therefore high reliability and low maintenance. The instrument parameters can remain stable for a long time. The vortex flowmeter adopts a piezoelectric stress sensor with high reliability and can operate within a temperature range of -20 ℃ to+250 ℃. It has both analog standard signals and digital pulse signal outputs, making it easy to use in conjunction with digital systems such as computers. It is a relatively advanced and ideal flow meter.
2、 Technical parameters
1. Measurement medium: gas, liquid, vapor;
2. The caliber specification for flange card mounted calibers is 25, 32, 50, 80, and 100;
3. The selection of flange connection caliber is 100, 150, 200;
4. The normal measurement range for flow rate is Reynolds number 1.5 × 104 to 4 × 106; Gas velocity of 5-50m/s; Liquid 0.5-7m/s;
5. Measurement accuracy of 1.0 level and 1.5 level;
6. Temperature of the tested medium: normal temperature -25 ℃ -100 ℃; 7. High temperature -25 ℃~150 ℃ -25 ℃~250 ℃;
7. Output signal pulse voltage output signal high level 8-10V low level 0.7-1.3V;
8. Pulse duty cycle of about 50%, transmission distance of 100m;
9. Pulse current remote transmission signal 4-20 mA, transmission distance of 1000m;
10. Instrument operating environment temperature: -25 ℃~+55 ℃ humidity: 5-90% RH50 ℃;
11. Material: stainless steel, aluminum alloy;
12. Power supply DC24V or lithium battery 3.6V;
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a thoroughfare (DN) |
Liquid flow range (m3/h) |
Output frequency range (Hz) |
Gas flow range (m3/h) |
Output frequency range (Hz) |
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15 |
1.2~6.2 |
90~900 |
5~25 |
265~2640 |
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20 |
1.5~10 |
40~396 |
8~50 |
218~1982 |
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25 |
1.6~16 |
32~325 |
10~70 |
172~1420 |
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32 |
2~20 |
20~250 |
15~150 |
130~1350 |
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40 |
2.5~25 |
13~130 |
22~220 |
115~1147 |
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50 |
3.5~35 |
9~93 |
36~320 |
96~854 |
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65 |
6~60 |
8~82 |
50~480 |
61~583 |
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80 |
10~100 |
6~65 |
70~640 |
45~417 |
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100 |
15~150 |
5~50 |
130~1100 |
43~367 |
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125 |
25~250 |
5~47 |
200~1700 |
33~290 |
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150 |
40~400 |
4~40 |
280~2240 |
27~221 |
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200 |
80~800 |
3~33 |
580~4960 |
24~207 |
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250 |
140~1400 |
3~26 |
970~8000 |
20~171 |
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300 |
200~2000 |
2~22 |
1380~11000 |
17~136 |
External Dimensions
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a thoroughfare (DN) |
L (mm) |
H (mm) |
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10 |
66 |
360 |
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15 |
66 |
360 |
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20 |
66 |
360 |
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25 |
66 |
360 |
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32 |
66 |
365 |
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40 |
80 |
370 |
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50 |
80 |
375 |
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65 |
93 |
383 |
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80 |
100 |
390 |
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100 |
125 |
400 |
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125 |
145 |
470 |
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150 |
165 |
500 |
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200 |
196 |
580 |
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250 |
235 |
650 |
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300 |
255 |
700 |
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Installation Diagram |
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caveat |
legend (of a map, etc) |
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1、Expand the installation of the pipe
For small diameter and large flow, must expand the installation of the pipe, while ensuring that the flow meter before the straight section ≥ 15D, after the straight section ≥ 5D
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2、Shrinking pipe installation
For large caliber small flow, must be reduced installation, while ensuring that the flowmeter before the straight section ≥ 15D, after the straight section ≥ 5D
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3、The installation of elbow
If the front end of the flowmeter has 90 ° elbow or T-type connector, to ensure that the flowmeter before the straight section ≥ 15D, after the straight section ≥ 5D
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4, the same plane two elbow installation
If the front of the flowmeter has two 90 ° elbow, to ensure that the flowmeter before the straight section ≥ 20D, after the straight section ≥ 5D
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5, the installation of two elbows in different planes
If the front of the flowmeter has two 90 ° elbow, to ensure that the flowmeter before the straight section ≥ 25D, after the straight section ≥ 5D
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6、Installation of adjustment valve
If the flowmeter before and after the need to install control valves, to ensure that the flowmeter before the straight section ≥ 25D, after the straight section ≥ 5D
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lProduct Selection Chart |
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CH-LU |
Vortex flowmeter |
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caliber (mm) |
10 |
DN10~DN50 (Flange, Clamp, Threaded, Clamped) |
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50 |
DN50~DN150 (Clamping type, flange type) |
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100 |
DN100~DN300(Flange Type, Clamping Type) |
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300 |
DN300Above is the insertion type |
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Installation |
B |
push-pull |
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L |
Flange connection type |
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C |
inserted |
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Mode of compensation |
/ |
uncompensated |
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BC |
Temperature and pressure compensation |
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W |
Single Temperature Compensation |
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Y |
Single pressure compensation |
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Measuring medium |
Y |
fluids |
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Q |
gas (i.e. gaseous substance) |
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Z |
vapor |
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temperature range |
T1 |
Normal temperature type (below 120°C) |
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T2 |
High temperature type (below 250°C) |
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pressure rating |
P1 |
Normal pressure~1.6MPa |
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P2 |
2.5MPa |
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P3 |
4.0MPa |
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Body Material |
A |
carbon steel |
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B |
304 stainless steel |
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C |
316 stainless steel |
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Power supply method |
D |
two-wire systemDC24V 4~20mA |
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H |
two-wire systemDC24V 4~20mA+HART协议 |
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C |
battery powered |
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Additional Options |
R |
RS485 MODBUScommunication protocols |
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M |
pulse output |
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B |
Explosion-proof (ExII CT6) |
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