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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
This series of turbine flowmeters is a new generation of turbine flowmeters, which absorbs the advanced technology of domestic and foreign flowmeters and is manufactured in accordance with jb/9246-199 standard.It is characterized by simple structure, light weight, high precision, good reproducibility, strong responsiveness and convenient installation and maintenance.
Product Origin:
ChinaShipping Port:
Huangpu portLead Time:
SpotMOQ:
1Features
■High precision, generally up to ±1%R, ±0.5%R, and high precision type can be up to ±0.2%R;
■Good repeatability with short-term repeatability of 0.05%-0.2%. Due to good repeatability, such as frequent calibration or online calibration, it can get very high precision,which is the preferred flow meter in trade settlement;
■ Output pulse frequency signal, it is suitable for total metering and connected with computer, without zero drift, and with strong anti-interference ability;
■It can obtainHigh frequency signal (3~4kHz) with strong signal resolution;
■ The range of medium and large caliber can reach 1:20, and the range of small caliber is 1:10;
■It has the characteristics of compact structure, light weight, convenient installation and maintenance, and large circulation capacity；
■It is suitable for high-pressure measurement, no need to open holes on the meter body, easy to make high-pressure type instrument;
■ It has many special sensor types, which can be designed into various types of special sensors according to the special needs of users, such as low temperature type, two-way type, downhole type, sand mixing type, etc.
■It can be made into plug-in type, suitable for large caliber measurement, with low pressure loss, low price, continuous flow, and easy installation and maintenance.
Meter classification
According to the meter function, LWGY series turbine flowmeter can be divided into 2 categories, namely: (1) turbine flow sensor / transmitter (2) intelligent display turbine flowmeter
(1) Turbine flow sensor / transmitter
This type of turbine flow product itself does not have function of on-site display, only transmitte the flow signal far. The flow signal can be divided into pulse signal or current signal (4-20mA). The meter price is low, with high integration, and small volume,which is especially suitable for use with computer control systems such as secondary display, PLC and DCS.
According to different output signals, these products can be divided into LWGY-□ N-type and LWGY-□ A-type.
LWGY- N-type sensor: 24VDC power supply, three-wire pulse output, high level ≥8V, low level ≤0.8V; signal transmission distance is ≤1000 meters;
LWGY-□A type transmitter: 24VDC power supply, 2-wire 4-20mA output, signal transmission distance ≤1000.
This type of turbine flow products are divided into basic type and explosion-proof type (Exdiict 6), and the shape is as shown in (Fig.1)(Fig.2).
(2)Intelligent display turbine flowmeter
The double-row liquid crystal on-site displayc is used for the new intelligent meter integrating turbine flow sensor and display calculation using advanced ultra-low-power single-chip microcomputer technology adopts, which has the advantages of compact mechanism, intuitive and clear reading, high reliability, no external power interference, lightning strike resistance and low cost.The meter has three-point correction of the meter factor, intelligently compensates the nonlinear meter factor, and can be corrected on site. The high-definition liquid crystal display simultaneously displays instantaneous flow and cumulative flow, with clear function. All valid data is not lost after 10 years of power failure. This type of turbine flowmeter is explosion-proof.
The explosion-proof grade is: EXDIICT 6
This type of turbine flowmeter can be divided into LWGY-□B type and LWGY-□C type according to the power supply mode and whether it has remote signal output.
LWGY-□B type: 36V/10Ah lithium battery is uesd for the power supply (can run continuously for more than 3 years);
LWGY-□C type: 2AVDC external power supply is used for the power supply, and outputs 4-20mA standard two-wire current signal, and HART communication or RS485 communication function can be increased according to different site needs.
Product Classification Description
1、 According to different installation methods
2、 According to different types of signal detector
Selection Instructions
Table 1
|
Model |
Description |
|
|
LWGY- |
|
|
|
Nominal diameter |
4 |
4mm |
|
|
6 |
6mm |
|
|
10 |
10mm |
|
|
15 |
15mm |
|
|
20 |
20mm |
|
|
25 |
25mm |
|
|
32 |
32mm |
|
|
40 |
40mm |
|
|
50 |
50mm |
|
|
65 |
65mm |
|
|
80 |
80mm |
|
|
100 |
100mm |
|
|
125 |
125mm |
|
|
150 |
150mm |
|
|
200 |
200mm |
|
Connection method |
L |
Thread(DN4mm - DN50mm) |
|
|
F |
Flange type（DN15mm- DN200mm ) |
|
Signal detector type |
P H E D |
Normal aviation connector with 4 m cable (for N-type output type) Hessmann connector (for N and A type output signal types) Explosion-proof housing type (for N and A type output types) Display type housing (for B, Cl, C2, C3 output types) |
|
Output type |
N |
Sensor type: 24VDC power supply, output three-wire pulse signal |
|
|
A |
Transmitter type: 24VDC power supply, output 4 ~ 20mA current signal |
|
|
B |
Intelligent: lithium battery power supply, on-site display (dual power supply, pulse output can be optional) |
|
|
Cl |
Intelligent type: 24VDC power supply, on-site display, output 4 ~ 20mA (pulse output can be optional) |
|
|
C2 |
Intelligent type: 24VDC power supply, on-site display, output two-wire 4 ~ 20mA HART communication, (pulse output can be optional) |
|
|
C3 |
Intelligent type : 24VDC power supply, on-site display, RS485 communication, (dual power supply, pulse output can be optional) |
|
Accuracy grade |
05 |
0.5 grade |
|
|
10 |
1.0 grade |
|
|
02 |
0.2 grade (need to negotiate orders, production cycle is longer) |
|
Turbine type |
W |
Extended measurement range |
|
|
S |
Standard measurement range |
|
Material |
S |
304 stainless steel |
|
|
L |
316 (L) stainless steel (need to be customized, long production cycle) |
|
Explosion proof |
N |
Non-explosion proof type |
|
|
E |
Explosion-proof tyoe，EXDIICT 6 |
|
Pressure grade |
P |
Normal (refer to Table 3) |
Installation Dimensions
1.Thread connection and flange connection are used for the installation of the sensor according to different specifications. The installation method is shown in Fig.4, Fig.5 and Fig.6. The installation dimensions are shown in Table2.
Table 2
|
Nominal diameter(mm ) |
L(mm) |
G |
D(mm) |
d(mm) |
Number of holes n-d |
|
4 |
225 |
G1/2 |
|
|
|
|
6 |
225 |
G1/2 |
|
|
|
|
10 |
345 |
G1/2 |
|
|
|
|
15 |
75 |
G1 |
Ф65 |
Ф14 |
4 |
|
20 |
80 |
G1 |
Ф75 |
Ф14 |
4 |
|
25 |
100 |
G5/4 |
Ф85 |
Ф14 |
4 |
|
32 |
140 |
G2 |
Ф100 |
Ф14 |
4 |
|
40 |
140 |
G2 |
Ф110 |
Ф18 |
4 |
|
50 |
150 |
|
Ф125 |
Ф18 |
4 |
|
65 |
170 |
|
Ф145 |
Ф18 |
4 |
|
80 |
200 |
|
Ф160 |
Ф18 |
8 |
|
100 |
220 |
|
Ф180 |
Ф18 |
8 |
|
125 |
250 |
|
Ф210 |
Ф25 |
8 |
|
150 |
300 |
|
Ф250 |
Ф25 |
8 |
|
200 |
360 |
|
Ф295 |
Ф23 |
12 |
LWGC (tangential) and LWCB (axial) plug-in type turbine flow sensors are matched with display meters to form a plug-in type turbine flow meter, which can be widely used for measurement of large caliber pipeline source water, circulating water, clean water and other liquid flows and total amount.
LWGS series sanitary type turbine flowmeter is a flowmeter meter that can be widely used in pharmaceutical, food, beverage and other industries for applications of metering, batching, control, finished product filling.
Food hygiene turbine Flow meter suitable for: pharmaceutical industry: physiological saline, glucose water and other infusion products filling and metering; Food and beverage industry: vegetable juice, beer, refined oil and other liquid food filling and metering.
LMGH series high pressure type liquid turbine flowmeter is a special high pressure flowmeter which is designed for high pressure fluid industry such as hydraulic equipment, engineering machinery, chemical industry, etc. The outer housing is made of stainless steel, with simple structure,optimized structure, and high pressure butt flange clamping or high pressure threaded connection.
The LWGM series micro type liquid turbine flowmeter is a special flowmeter designed to measure small flows using the principle of turbines.It is extremely accurate, especially under high temperature and high pressure conditions. It is also integrated with a electronic pulse generator to maintain ±1% accuracy and ±0., 25% repeatability under long-term continuous operation. Due to the dexterous structural design, no precipitation is formed during operation, so the operation of the meter is “clean”.
1. High-definition LCD display; 2. Three-key parameter setting and debugging; 3.5-segment polyline correction function for non-linear signals ; 4. Linear current output; 5. Frequency pulse output: DC power can be used to supply power to the pulse output circuit. At this time, the meter can convert the mV pulse signal output by the turbine sensor into a standard TTL pulse,which can be used for linear signal users debugging.
LWGC (tangential) and LWCB (axial) plug-in type turbine flow sensors are matched with display meters to form a plug-in type turbine flow meter, which can be widely used for measurement of large caliber pipeline source water, circulating water, clean water and other liquid flows andtotal amount.
LWGY series turbine flow meter is a very popular product that produced by our company. It is a new generation of turbine flow meters which has absorbed the advanced technology of flow meter at home and abroad, and is manufactured according to JB/9246-199 standard. It has the characteristics of simple structure, light weight, high precision, good reproducibility, high responsiveness, easy installation and maintenance.
LWGQ Gas Turbine Flowmeter has a variety of signal output modes and low sensitivity to fluid disturbances, and is widely used in the measurement of natural gas, coal gas, liquefied gas, light hydrocarbon gas. This type of turbine flowmeter is an explosion-proof product with an explosion-proof rating: ExdIICT6.
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.
The XSN intelligent flow control instrument is combined with the vortex street and the sensor of the turbine pulse signal to control the flow quantitatively.
Target flowmeter in 60 s application in the industrial flow measurement, it is mainly used for solving high viscosity, low Reynolds number fluid flow measurement, has experienced the pneumatic tables and electric table two development stages, NBL series intelligent target flowmeter is the original strain chip target flowmeter measurement principle on the basis of using the latest capacitive force sensor as measure and sensitive components, at the same time, use of modern digital intelligent processing technology and developed a new type of flow meters.
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