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Booth F92
Introduce Nan Kong Instrument is mainly engaged in the development, production, sales and service of high-performance, intelligent instruments and related systems.The products include vortex flowmeter, turbine flowmeter, electromagnetic flowmeter, mass flowmeter, metal float flowmeter, roots flowmeter, ultrasonic flowmeter and air energy consumption metering management system, IC card energy metering management system, steam metering management system, air conditioning energy management system, gas metering management system, etc.


Electromagnetic Flowmeter
The LDB intelligent type electromagnetic flowmeter 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. It is wdely used for flow measurement of petroleum, chemical, metallurgy, textile, papermaking, environmental protection, food and other industrial sectors and municipal management, water conservancy construction, rivers and other fields.
ultrasonic flowmeter
UF500 is a high-precision industrial-grade time-difference ultrasonic flowmeter. It uses the latest 700,000 gate array industrial PFGA chip, which greatly improves the signal sampling frequency and bubble tolerance. The self-developed TGA technology enables it to handle more complex logic and operations, and achieve more accurate and faster measurement. The flowmeter can withstand discontinuous bubbles or impurities within 5 seconds. At the same time, it has the characteristics of simple installation and convenient use, complete installation without breaking the pipe and shutting down water.
Product characteristics:
Simple and convenient installation, high flexibility, a pair of sensors can be used in general diameter.
High accuracy (+0.5%) and high reaction rate (sampling speed can reach 300 times/second)
Low velocity measurements (up to 0.03 m/s).
It can be measured by a single medium, and can be widely used in water treatment, pure water, ultra-pure water, petroleum and chemical industry, air conditioning energy saving and other fields.
The upper limit of temperature for ordinary standard insertion sensor is 130 C, and the upper limit of temperature for high temperature sensor is 180 C.
It can be extended to an energy meter to measure energy consumption.
Liquid turbine flowmeter
LWGY series turbine flowmeter is a new generation of turbine flowmeters 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.
It is widely used to measure the liquid in closed pipeline. The liquid does not corrode stainless steel 1cr18Ni9Ti, 2Cr13 and corundum AI203 cemented carbide, and has no impurities such as fiber particles. The kinematic viscosity at working temperature is less than 5×10-6m2/s.For liquids with a kinematic viscosity greater than 5 × 10 m / s, the flow meter can be used after real liquid calibration.If it is matched with a display instrument with special functions, it can also perform quantitative control, excess alarm, etc, which is an ideal meter for flow metering and energy saving.
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.
Vortex flowmeter
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.
The vortex flowmeter adopts a new design of structure with mechanical shock resistance, impact resistance and stain resistant. It has no moving parts, no wear, and no mechanical maintenance.
The vortex flowmeter has low pressure loss, stable performance, high accuracy. It’s of easy installation and use, and sensors and signal converters are interchangeable.
The LUGB type vortex flowmeter is a new type of flowmeter introduced by our company, the design of which is reasonable and the function is powerful, it also has linear correction function, reaching the world advanced level. The flowmeter adopts a high-resolution low-power full dot-matrix LCD display, which is clear and intuitive and it’s easy to operate. RS485 or HART communication can meet various needs of users; 12 kinds of compensation algorithms can almost satisfy all flow compensation calculations. Correction curve relying on external data and calibration method based on standard signal lead the trend of instrument calibration.

■No moving components, long-term stabilization, structure is simple for easy installation and maintenance
■The output of the sensor is the pulse frequency, its frequency is linear with the actual flow rate of the fluid measured, it has no zero drift, and the performance is very stable. The structure is various in the form of pipeline and plug-in type flow sensors;
■The accuracy is high, the accuracy of measuring liquid is usually 11.0%, and the accuracy of measuring gas is ±1.5%;
■The measurement range is wide, and in the range of reynolds number is 2×104~7×106, it can reach 1:20;
■Low pressure loss(about 1 /4-1 /2 of the orifice flowmeter), which belongs to the energy-saving flow instrument;
■The installation method is changeful. It can be installed horizontally, vertically and at different
Thermal gas mass flowmeter
The LKQ series thermal gas mass flowmeter provide a reliable solution for gas mass flow detection. Low flow sensitivity, fast response and wide range ratio make this model of meter the first choice for many important gas applications. The Steel - Trak sensor automatically corrects the effects of temperature and pressure, making the mass flow output more stable and reliable. Its advantages in gas measurement are particularly pronounced, especially in the case of low pressures and complex gas compositions. Compared with other flowmeters, the thermal type gas mass flowmeter has the advantages of small pressure loss, wide range ratio and high sensitivity of small range segments, which is more conducive to energy saving and procurement costs.
LKQ series thermal type gas mass flowmeter 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.
■Smoke flow measurement from the chimney
■Aeration flow measurement in water treatment
■Cement, cigarette, glass flow measurement during production
■Compressed air flow measurement
■Measurement of mixed gas flow of various natural gas, coal gas, liquefied gas, flare gas, ammonia gas, carbon dioxide, etc.
Gas turbine flowmeter
LWGQ 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.
It 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.

II. Features
■High precision, good repeatability and wide range ratio,up to 1:20 (or wider);
■Use integrated type new rectifier, the requirements for the front and rear straight pipe sections are lower (front ≥ 5DN, rear ≥3DN);
■Use a carefully designed dust-proof structure to ensure the reliability of long-term bearing operation;
■Designed with a unique fueling system to ensure reliable fueling, easy maintenance and beautiful appearance;
■The technical indicators meet the requirements of I509951-1993, the length of the body is 3DN, and the whole machine has reached the international advanced level;
■The volume corrector of the flowmeter can be rotated freely by about 350 degrees, which can be easily read in various installation modes.
■Low speed, high life, low pressure loss, high precision;
■It integrates high-precision temperature, pressure, flow sensor and volume corrector, which can detect the temperature, pressure and flow of the measured gas, and automatically track and compensate the flow and correct the compression coefficient. The meter has real-time database and communicates via RS485 interface and meter reading network to facilitate centralized data collection and real-time management;

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