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Smart gas Roots (waist wheel) flow meter Intelligent gas waist wheel (Roots) flowmeter is a new generation flowmeter that integrates flow, temperature, and pressure detection functions, and can automatically compensate for temperature and pressure. Gas is a compressible fluid, and its volume value is closely related to temperature and pressure. In order to unify standards for both parties, it is necessary to convert the actual volume into a standard volume under reference conditions (101.325 kPa 20°C). In order to achieve this purpose, the smart gas waist wheel flowmeter can accurately correct the volume of gas; it is an ideal instrument for gas measurement in urban gas, petroleum, chemical, electric power, metallurgy and other industries. more
TUF Series Portable Ultrasonic Flow Meter The TUF series ultrasonic flow meter utilizes the principle of low voltage and multiple pulsation time difference, adopts the high-precision and ultra-stable differential transmission of double-balanced signals and differential receiving digital detection technology to measure the acoustic wave transmission time in both the downstream and counter-current directions, and calculates the flow rate according to the time difference.It has the characteristics of good stability, small zero drift, high measuring accuracy and high anti-interference of measuring range over wide. more
LDB Intelligent Type Electromagnetic Flow Meter The LDB intelligent type electromagnetic flow meter consists of a sensor and a converter. It is based on Faraday's law of electromagnetic induction, which is used to measure the volume flow of conductive liquid with conductivity greater than 5μs/cm. It is an inductive meter for measuring the volume flow of conductive medium. In addition to measuring the volume flow of general conductive liquid, it can also be used to measure the volume flow of strong corrosive liquids such as strong acid and alkali and uniform liquid-solid two-phase suspension liquid such as slurry, pulp and paper pulp. more
LKQ Thermal Gas Mass Flow Meter LKQ thermal gas mass flow meter is a mass flow measurement and monitoring meter,which can detect air, natural gas, hydrogen, oxygen, chlorine, nitrogen and ammonia, ammonia, coal gas, phosgene, flue gas and various chemical mixtures, without pressure and temperature compensation. It can be widely used in petroleum, chemical, metallurgy, electric power, water treatment, paper, food, medicine, cement, textile and various production, scientific research units for process control and gas flow measurement. Widely used in: flow measurement of steel plant, coking plant gas. more
LLGQ Gas Roots /Waist Wheel Flow Meter The gas roots flowmeter has been used as a volumetric meter for more than 100 years. With the features such as high precision, wide range, small volume, light weight, convenient installation and maintenance, reliable and durable service life, it is widely used in natural gas, coal gas, air and other gas flowmeters.It is an ideal flowmeter device for urban gas, oilfield chemical, scientific research and other departments at home and abroad. more
High Precision Gas Turbine Flow Meter Gas turbine flowmeter is a new generation of high precision, high reliability gas precision measuring meter integrating temperature, pressure, flow sensor and intelligent flow totalizer developed by the advanced technology of flow meter at home and abroad, optimized by theories of gas mechanics, fluid mechanics and electromagnetics, which has excellent low pressure and high pressure metering performance. more
LUGK Multi Variable Type Vortex Flow Meter Mass vortex flowmeter, simple to install. Connection mode: flange and clamping connection. It has superior reliability and stability due to no movable part, and the detecting portion has only a simple configuration of the vortex generator. Low pressure loss, no leakage point, and high safety performance. Robust sensor construction for high temperature (up to 3500 ° C), high pressure fluid. more
LUGC Steam Gas And Liquid Insert Type Vortex Flow Meter The Insert Type vortex flowmeter is simple in structure and can be made into online installation type.Applicable to large diameter gas, steam flow measurement, etc.Easy installation, no pipe design. more
LUGB Flow Instrumentation Vortex Flow Meter The vortex flowmeter is a speed type flow instrument which has a wide range of uses. It is suitable for flow metering, measurement and control of liquids, steam and most gases. more
LUXQ series intelligent precession vortex flowmeter can be widely used in industries such as petroleum, chemical, electric power, metallurgy, urban gas supply to measure various gas flows, which is the first choice for oil and gas transmission and metering and trade measurement.
Product Origin:
ChinaShipping Port:
Huangpu portLead Time:
SpotMOQ:
1Features
■No mechanical movable parts, not easy to corrode, stable and reliable, long life, no special maintenance for long-term operation;
■Use 16-bit computer chip, high integration, small volume, good performance, strong machine function;
■Intelligent type flowmeter integrates flow probe, microprocessor, pressure and temperature sensor. It uses built-in combination to make the structure more compact. It can directly measure the flow, pressure and temperature of the fluid, and automatically track the compensation and compression factor correction in real time.
■Use double detection technology, it can effectively improve the detection signal strength and suppress the interference caused by pipe vibration;
■Use domestic leading intelligent aseismic technology, effectively suppressing interference signals caused by vibration and pressure fluctuations;
■Use Chinese character dot matrix display, the display has many digits, the reading is intuitive and convenient, and can directly display the volume flow under working condition;
■ Volume flow, total amount, and medium pressure, temperature and other parameters under standard condition;
■Use EEPROM technology, easy to set up the parameters, can be saved permanently, and can save historical data up to one year;
■The converter can output frequency pulse, 4~20mA analog signal, and has RS485 interface, which can directly communicate with the microcomputer. The transmission distance can reach 1.2km;
■Multiple physical parameter alarm output, which can be selected by the user;
■The meter head can rotate by 350 degrees, which is easy to install and use;
Flowmeter Selection
Table 1
Model |
Description |
||||||
LWXQ- |
□ |
□ |
□ |
□ |
□ |
□ |
|
Meter nominal diameter |
|
01 |
|
|
|
20mm |
|
|
02 |
|
|
|
25mm |
||
|
03 |
|
|
|
32mm |
||
|
05 |
|
|
|
50mm |
||
|
06 |
|
|
|
65mm |
||
|
08 |
|
|
|
80mm |
||
|
10 |
|
|
|
100mm |
||
|
12 |
|
|
|
125mm |
||
|
15 |
|
|
|
150mm |
||
|
20 |
|
|
|
200mm |
||
Flow range |
|
1 |
|
|
|
A:Little range |
|
|
2 |
|
|
|
B:Large range |
||
|
|
1 |
|
|
|
24VDC |
|
|
2 |
|
|
|
Lithium battery |
||
|
3 |
|
|
|
24VDC and lithium battery |
||
Accuracy grade |
|
0 |
|
|
|
1.0 grade |
|
|
1 |
|
|
|
1.5 grade |
||
|
|
A |
|
|
|
4-20mA two-wire output |
|
|
B |
|
|
|
4-20mA three-wire output; pulse output; RS485 communication (MODBUS protocol); alarm output |
||
|
C |
|
|
|
Pulse output: RS485 communication (MODBUS protocol); alarm output |
||
Explosion-proof grade |
|
N |
|
|
|
Standard type, not explosion-proof |
|
|
E |
|
|
|
Flameproof type, ExdIIBT6 |
Flowmeter Dimensions and Installation Dimensions
The external dimensions of the flowmeter are shown in Fig.1. The unmarked dimensions in the figure are listed in Table 1. The flowmeter use flange connection and implement the GB/T9112}9113-2000 standard.
Table 2 Units: mm
Model |
Nominal diameter(DN) |
Pressure grade(MPa) |
A |
H |
D |
K |
n-φd |
LUXQ-020A |
20 |
1.6、2.5、4.0、6.3 |
160 |
305 |
105 |
75 |
4-φ14 |
LUXQ-025A |
25 |
1.6、2.5、4.0、6.3 |
180 |
315 |
115 |
85 |
4-φ14 |
LUXQ-032A |
32 |
1.6、2.5、4.0、6.3 |
200 |
330 |
140 |
100 |
4-φ18 |
LUXQ-050A |
50 |
1.6、2.5、4.0 |
232 |
355 |
165 |
125 |
4-φ18 |
LUXQ-050B |
6.3 |
365 |
180 |
135 |
|||
LUXQ-080A |
80 |
1.6、2.5、4.0 |
330 |
390 |
200 |
160 |
8-φ18 |
LUXQ-080B |
6.3 |
400 |
215 |
170 |
|||
LUXQ-100A |
100 |
1.6 |
410 |
410 |
220 |
180 |
8-φ18 |
|
2.5 |
420 |
235 |
190 |
8-φ22 |
||
LUXQ-100B |
4.0 |
420 |
235 |
190 |
|||
LUXQ-150A |
150 |
1.6 |
580 |
470 |
285 |
240 |
8-φ22 |
|
2.5 |
490 |
300 |
250 |
8-φ26 |
||
LUXQ-150B |
4.0 |
490 |
300 |
250 |
|||
LUXQ-200A |
200 |
1.6 |
700 |
525 |
340 |
295 |
12-φ22 |
2.5 |
540 |
360 |
310 |
12-φ26 |
|||
4.0 |
550 |
375 |
320 |
12-φ30 |
|||
Note: ※ special specification requirements. |
Installation Precautions
1. The sensor can be installed in the vertical, horizontal or any inclined position according to the flow direction mark;
2. When the pipe is long or close to the vibration source, support should be installed on the upstream and downstream of the flowmeter to eliminate the influence of pipe vibration;
3. The installation location of the sensor shall have sufficient space to facilitate the inspection and maintenance of the flowmeter and meet the environmental requirements of the flowmeter;
4. Avoid interference from strong external magnetic fields;
5. When installing and using outdoors, there shall be cover to avoid sun exposure and rain erosion, which will affect the service life of the meter;
6. When testing the pipe, pay attention to the pressure measurement range of the pressure sensor configured by the intelligent flowmeter to avoid overpressure and damage the pressure sensor.
7.Pay attention to the impact of installation stress, the upstream and downstream pipe installed in the flowmeter should be coaxial, otherwise it will produce shear stress. The position of the flowmeter should take into account the thickness of the gasket or to install an elastic expansion joint on the downstream side.
8. Before installing the flowmeter, remove the welding slag and other debris.
9. When the machine is in operation, the upper and lower valves of the flowmeter should be slowly opened to prevent the instantaneous airflow from damaging spiral flow generator..
10. When the flowmeter needs to transmit signal remotely, it shall be connected to the external power supply (1224) VDC strictly according to the requirements of “Electrical Performance Index”. It is strictly forbidden to directly connect 220VAC or 380VAC power supply to the signal output port;
11. The user shall not change the wiring mode of the explosion-proof system and arbitrarily twist each output lead connector;
12. When the flowmeter is in operation, it is not allowed to open the back cover to change the meter parameters, otherwise it will affect the normal operation of the flowmeter;
13. Check the leakage at the flange of the flowmeter regularly.