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Ordinary elliptical gear flowmeter
1. High measurement accuracy, wide flow range, and good repeatability
Product details
1、 [Product Overview]
LC type elliptical gear flowmeter is a volumetric flowmeter that measures the total flow rate of liquid flowing through pipelines. This product is suitable for flow measurement in industrial sectors such as chemical, petroleum, pharmaceutical, power, metallurgy, and food. The elliptical gear flowmeter with transmission can be matched with flow integrators and other instruments. The LC series elliptical gear flowmeter is the main type of volumetric flowmeter used to measure the fluid flow rate of full pipe flow in a closed pipeline under a certain pressure. It has the advantages of high accuracy, good reliability, long service life, large range, small pressure loss, and strong viscosity adaptability. The measurement is basically not affected by temperature and pressure changes, and it is easy to install. Mainly used for measuring the cumulative flow rate of petroleum products, it can also be used for measuring other chemical solutions (excluding corrosive media).
The elliptical gear flowmeter consists of a measuring chamber equipped with a pair of elliptical gear rotors, a sealed coupling (a magnetic coupling with high sensitivity is used for small-diameter flowmeters), and a counting mechanism
2、 [Purpose]
Elliptical gear flowmeter is a precision instrument used for measuring and controlling liquid flow in pipelines. Flow meters can be made of different materials and are widely used in departments such as petroleum, chemical, light industry, commerce, and scientific research; Specially suitable for measuring industrial liquids such as crude oil, refined oil, and light hydrocarbons, it is currently the latest generation of volumetric flow meters in China.
The flowmeter is equipped with a pointer, a dial counter, and an accumulated amount indicating the flow rate; And it can output electrical pulse signals for secondary instruments or computer detection, used for automatic control and data processing.
3、 [Features]
High measurement accuracy, wide flow range, and good repeatability
Spiral rotor rotates uniformly, with minimal vibration and long lifespan;
Not sensitive to changes in viscosity of the tested liquid, especially suitable for measuring high viscosity liquids
Simple structure, small external dimensions, and light weight
Easy to install
4、 Installation diagram
① The elliptical gear flowmeter can be installed according to the method shown in the left figure.
② When installed vertically, the tested medium should flow from bottom to top.
③ The flowmeter head can rotate at any angle to read the displayed value.
④ The direction of the flow arrow on the flowmeter should be consistent with the flow direction of the liquid.
⑤ This flowmeter can read flow values on-site and also achieve remote transmission.
⑥ This flowmeter can display cumulative flow and instantaneous flow.
|
model |
Nominal diameter Dg |
Total length L |
Total width H |
Total height B |
Center height A |
Flange D |
Flange hole D1 |
Bolt hole N-0 |
|
LC-15 |
15 |
180 |
124 |
205 |
158 |
95 |
65 |
4-14 |
|
LC-20 |
20 |
180 |
124 |
205 |
168 |
105 |
75 |
4-14 |
|
LC-25 |
25 |
245 |
184 |
240 |
171 |
115 |
85 |
4-14 |
|
LC-40 |
40 |
250 |
184 |
270 |
187 |
145 |
110 |
4-18 |
|
LC-50 |
50 |
340 |
255 |
305 |
210 |
160 |
125 |
4-18 |
|
LC-80 |
80 |
420 |
310 |
390 |
260 |
195 |
160 |
4-18 |
|
LC-100 |
100 |
440 |
330 |
440 |
280 |
215 |
180 |
4-18 |
5、 [Technical Parameters]
|
Basic error limit (%) |
<±0.5% |
||||
|
Nominal pressure (MPa) |
1.6 |
||||
|
Working temperature (℃) |
0-60 |
||||
|
Liquid viscosity (MPa · s) |
0.6-200 (light oil) |
||||
|
0.6-300 (heavy oil) |
|||||
|
model |
Nominal diameter (mm) |
Flow range (m3/h) |
|||
|
Viscosity of petroleum products (MPa · s) |
Chemical liquid viscosity (MPa · s) |
||||
|
0.6-2 |
2-8 |
8-200 |
0.6-200 |
||
|
LC-15 |
15 |
0.38-1.5 |
0.2-1.5 |
0.15-1.5 |
0.3-1.5 |
|
LC-20 |
20 |
0.75-3 |
0.4-3 |
0.3-3 |
0.6-3 |
|
LC-25 |
25 |
1.5-6 |
0.8-6 |
0.6-6 |
1.2-6 |
|
LC-40 |
40 |
3-15 |
2-15 |
1.5-15 |
2.4-12 |
|
LC-50 |
50 |
4.8-2.4 |
3.2-24 |
2.4-24 |
3.8-19 |
|
LC-80 |
80 |
12-60 |
8-60 |
6-60 |
10-50 |
|
LC-100 |
100 |
20-100 |
13-100 |
10-100 |
16-80 |
Note: Special requirements can be customized accordingly
6、 The use of elliptical gear flow juice
The elliptical gear flowmeter installed correctly according to the requirements can ensure sufficient accuracy during use, and the accuracy of the cumulative value can usually reach level 0.5, making it a relatively accurate flow measuring instrument. However, if the flow rate of the measured medium is too low during use, the impact of instrument leakage errors will become prominent, and sufficient measurement accuracy cannot be guaranteed. Therefore, different models and specifications of elliptical gear flow meters have an allowable minimum flow rate, and measurement accuracy can only be guaranteed when the actual measured flow rate is greater than the lower limit flow rate allowable value.
Secondly, when using an elliptical gear flowmeter, it is important to note that the temperature of the measured medium should not be too high, otherwise it will not only increase measurement errors but also have the potential to cause gear jamming. Therefore, the elliptical gear flowmeter is used within the specified temperature range of the instrument.
After long-term use, the internal gears of the elliptical gear flowmeter will be corroded and worn, which will affect the measurement accuracy. Therefore, it is important to observe regularly and dismantle for inspection. If conditions permit, it is best to calibrate regularly.
LC type elliptical gear flowmeter
LC-15 LC-20 LC-25 LC-40 LC-50
LC-80 LC-100
LC type return to zero elliptical gear flowmeter
LC-15 LC-20 LC-25 LC-40 LC-50
LC-80 LC-100 elliptical gear flowmeter
LC type stainless steel elliptical gear flowmeter
LC-15 LC-20 LC-25 LC-40 LC-50
LC-80 LC-100 stainless steel elliptical gear flowmeter
LC type elliptical gear flowmeter with transmitter
LC-15 LC-20 LC-25 LC-40 LC-50
LC-80 LC-100 elliptical gear flowmeter with transmitter
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