Flow meter manufacturer from China（Kaifeng AFT Instrument Co.,ltd)

     With the development of electronic technology, electromagnetic flow meter  have been widely used in various industries. For the selection of electromagnetic flow meter, the most important thing is the choice of the inner lining. How to choose the inner lining requires the corrosiveness ,  abrasion  and the temperature of the measured medium, which is as follows:      1.  Polychloroprene     Operating temperature -20℃ ~ +60 ℃, it is characterized by excellent elasticity, high tearing force, good wear resistance, and resistance to general low concentration acid, alkali, salt medium corrosion, but not resistant to oxidation of corrosive media. T he scope of its application are: water, sewage, weak abrasive mud, and pulp.      2.  Polyurethane rubber     Operating temperature -20 ℃ ~ +60 ℃, its characteristics have good wear resistance (equivalent to 10 times that of natural rubber)...

     In December 2019, a sewage electromagnetic flow meter purchased by a sewage treatment plant in Zhejiang Province. The on-site customer did not understand the construction, the company sent a technician to the site to guide the installation and commissioning work. PVC pipes are used on site, and additional grounding rings and grounding piles are required.After installation of sewage electromagnetic flow meter , the water was connected for debugging. The field flow was very stable, the customer was very satisfied, and he gave our company a high evaluation.      Our company has strict quality control in every link from electromagnetic flow meter design, raw material purchasing and processing, manufacturing and assembly, inspection and verification to product delivery. We strive to make our products more and more perfect. We take scientific management, strict technology, advanced equipment and high-quality employees as the guarantee of high-quality pro...

     Ultrasonic flow meter is a speed flow meter that uses ultrasonic pulse to measure fluid flow. It adopts advanced multi-pulse technology, signal digitization processing technology and error correction technology, which makes the flow meter more adaptable to the industrial scene environment, and the measurement is more convenient, economic and accurate. It can be widely used in petroleum, chemical, metallurgy, electric power and other fields. At present, ultrasonic flow meter are getting more and more attention from various enterprises. In the process of using ultrasonic flow meter , what we should pay attention to is as follows:     1. Correct selection     Proper selection is the basis for ensuring the proper operation of the ultrasonic flow meter. If the selection is not correct, the flow will not be measured, or the user may not use it.     2. Reasonable installation     Unreasonable installation of the transdu...

    With heroic songs recited to a farewell to the old age and a welcome for the new year, on the afternoon of January 22, 2019, the New Year's party of KAIFENG AFT INSTRUMENT CO .,LTD. was held on the first floor of the company. The president of the company, Mr. Xu, and Manager Xie and all the staff gathered together to celebrate the coming of the new year. The conference was kicked off in the warm congratulatory message of Ms. Xie Chengshan, the general manager of the company. First of all, Manager Xie expressed her gratitude to all the employees of the company that the development of the company is inseparable from the efforts of every employee in KAIFENG AFT INSTRUMENT CO.,LTD. Secondly, Ms. Xie made a comprehensive, objective and fair summary of the development of KAIFENG AFT INSTRUMENT CO .,LTD in 2018, listed the new goal that the company will complete in 2019. Besides, she made a promise that Electromagnetic Flow meter  brand and technology of the com...

    On January 18, 2019, Korean customers come to our company to conduct on-site visits to investigate electromagnetic flowmeters, high-quality products and services, strong company qualifications and credibility, and good industry development prospects, which are important reasons for attracting customers to visit.KAIFENG AFT INSTRUMENT CO .,LTD warmly welcomed the arrival of Korean customers and arranged a detailed reception work.Accompanied by the main responsible persons of various departments, the Korean customers visited the company's production workshop and watched the production process of the company's electromagnetic flow meter . The good performance of products and the serious attitude of the staff made the customers marvel! The company's leaders and related staff have made detailed answers to the various questions about the electromagnetic flowmeter. The rich professional knowledge and excellent working ability have also left a deep mark on the customers. C...

     The electromagnetic flowmeter is an instrument for measuring the volume flow of the conductive fluid through the electromotive force induced by the applied magnetic field according to "Faraday electromagnetic induction principle". It consists of two parts, the sensor and the converter. It is suitable for measuring the flow of conductive liquid and slurry in closed pipes, such as clean water, sewage, various acid and alkali salt solutions, mud, pulp, pulp and food liquids.With the development of industrial technology, the advancement of agricultural science and technology.Due to its own advantages and characteristics, the use of electromagnetic flowmeter has been increasing every year.  At the same time as the amount of use is increased, the following items must be noted in the installation of the electromagnetic flowmeter:      The electromagnetic flowmeter should be installed in the correct position.     1. Installation method (as...

     At present, electromagnetic flowmeters are widely used in fields such as farmland irrigation, industrial chemicals, urban water supply, and enterprise production.Usually, as far as the liquid measurement is concerned, the electromagnetic flowmeter should be considered first.Electromagnetic flowmeter has high measuring accuracy, easy installation and no damage. The inner lining of the sensor is resistant to acid and alkali corrosion ,and can also resist high pressure medium. There are no moving parts inside, no blockage of the pipe, no pressure loss. The converter has the function of liquid crystal display, which can display the information of accumulative flow, instantaneous flow, flow rate, system alarm and so on.The internal use of high-precision digital chip, strong anti-interference ability, fast data processing and other characteristics has obvious advantages in the measurement and use process.       There are many classification methods of ...

     The electromagnetic flowmeter uses the principle of Faraday's law of electromagnetic induction, that is, when a conductive object cuts a magnetic wire in a magnetic field, an induced electromotive force is generated in the conductor. Its induced electromotive force E is:      E=KBdV      The flow rate Q is: Q=3600*V*S      Where: K-meter factor       B-magnetic induction (T)       D-electrode spacing (m)      V-fluid average flow rate (m/s)      S-catheter cross-sectional area m2      When the flow rate is measured, the conductive liquid flows at a flow velocity V through a magnetic field perpendicular to the flow direction, and the flow of the conductive liquid induces a voltage proportional to the average flow velocity, and the induced voltage signal is detected by the electrode in direct contact with the liquid. For the same flow meter S...

     The correct selection of the ultrasonic flowmeter often plays an important role in the successful use of the flowmeter. Due to the complexity of the object to be measured and the variety of flowmeters, this makes the selection of the ultrasonic flowmeter somewhat difficult. No flow meter is perfect, all kinds of instruments have their own characteristics, the purpose of selection is to choose the most suitable flow meter key.       General ultrasonic flowmeter selection can be considered from the six aspects of measuring medium, flow rate, fluid characteristics, installation conditions, environmental conditions and economic factors, as follows:      1. Measuring medium: water, sea water, sewage, alcohol, oil, acid-base liquid, etc.;      2. Flow rate: accuracy, repeatability, linearity, measurement range, signal output characteristics, response time and pressure loss;      3. Fluid properties: temp...

   On January 5, 2019, the flow meter   knowledge training organized by the company was successfully carried out in the factory of KAIFENG AFT INSTRUMENT CO .,LTD. This training is to further strengthen the company staff's in-depth understanding of product knowledge, better serve customers, meet the development of the company, enhance the staff's ability, and lay a good foundation for the company's development and growth. Xu Zong, Xie Manager and Director Shang of our company are the main lecturers of the training.      In order to give us a deeper understanding of product knowledge, Xu introduced the types, characteristics, principles, technical parameters and uses of electromagnetic flowmeters, ultrasonic flowmeters , turbine flow streets and vortex flowmeters with vivid PPT. and take us to the workshop to observe the production process of the flowmeter. Mr. Xie Manager and Mr. Shang mainly explained the installation requirements of the flowmeter, and a...

Mass flow meters are now favored by users because they directly measure the mass flow of fluid in the pipeline, rather than measuring the volumetric flow and density of the fluid being measured, as calculated in the past, and then calculating it. In addition, its accuracy and stability are higher, the range ratio is larger, but its performance price ratio is too high. For manufacturers, this is a very profitable product, so the development, trial production and marketing of this product has been positive. Principle The principle of the Coriolis mass flowmeter is essentially to utilize the resonance characteristics of an elastomer: for the metal tube components of the fluid flow and the vibration without fluid flow (near the resonance region), the dynamic response characteristics are determined, and the resonance system is determined. The relationship between phase difference (time difference) and mass flow. The difference between the dynamic response characteristic of a metal tube elem...

   On December 24, 2018, two turbine flowmeters were sent to Thailand.They are DN25 and DN6,respectively.Also,the two turbine flow meters are flanged and threaded, respectively.       LWGY series turbine flow meter is a new generation of flow meter optimized by the advanced technology of flow meter at home and abroad. It has simple structure, light weight, high precision, good reproducibility and responsiveness. It is easy to install and maintain.It is used to measure the volumetric flow of low viscosity, clean media in closed pipes. Widely used in steel, power, petroleum, chemical, coal, metallurgical and other industries. So,if you need it, we have professional sales staff and will do our best to serve you. If you have any doubt or requirement,welcome to visit our website: www.aft-flowmeter.com Or contact us:WhatsApp:+86-15237800315

     A turbine flow meter is a type of turbine that is supported by bearings at the center of the measuring pipe. When the fluid flows through the pipe, it impacts the turbine blades and drives the turbine to cause the turbine to rotate against the fluid resistance torque and the friction torque. Within a certain flow range, for a given fluid medium viscosity, the rotational angular velocity of the turbine is proportional to the fluid flow rate. Thus, the fluid flow rate can be obtained by the rotational angular velocity of the turbine, whereby the flow of fluid through the conduit is ultimately achieved by calculation.     Since the turbine flowmeter is sensitive to the conditions on site, the user should meet its ideal requirements with great satisfaction, so as to maintain the degree of factory instrumentation and obtain the desired measurement data. When the temperature pressure of the fluid medium differs greatly from the reference condition, the volume ch...

     AFTLD Intelligent electromagnetic flow meter is a kind of high performance ,high reliability of the flow meter .In order to meet the different requirements of different customers, its output method is also diverse.      ①Analog output.The electromagnetic flow meter has a 4-20 mA output and has constant current characteristics.      ②Frequency output.  The electromagnetic flow meter converter uses a frequency to transmit a flow signal to a display meter or regulator without substantial loss of accuracy. This is its outstanding advantage.      ③Digital output.The electromagnetic communication flow meter RS232, RS485 and other communication ports are connected with the computer. With the support of professional software, not only can the various parameters measured by the flow measuring instrument be transmitted to the computer, the fault information and related configuration data and the characterization ...

Characteristics of liquid ammonia flow measurement: ①The gas-liquid interface at the liquid ammonia stored in the storage tank is generally in a gas-liquid equilibrium state. Liquid ammonia flow measurement should try to avoid two-phase flow. However, liquid ammonia close to the gas-liquid equilibrium state, if the pressure loss is large when flowing through the flow, it is easy to cause partial vaporization, which affects the measurement accuracy. ②The temperature coefficient of liquid density is large. From the ρ=f(t) function table of liquid ammonia, it can be seen that under normal temperature conditions, the density of the liquid ammonia changes by 0.2 ° C or more for every 1 ° C change. Therefore, liquid ammonia metering must be temperature compensated. ③High precision requirements. Liquid ammonia metering should achieve level 1 accuracy. ④The fluid is flammable and explosive. Explosion-proof instruments should be used when selecting the instrument. ⑤The measured medium is cor...

On November 29, 2018, our company personnel actively participated in the 2018 (Henan) orientation & training on UN Procurement.        At the meeting, it talked about the birth of the United Nations, the role of the United Nations, the process of China’s accession to the United Nations, the status and role of China in the United Nations, and the procurement needs and procurement processes of the United Nations，etc.It was also mentioned that the United Nations has a great demand for rescue equipment (such as tents) and instrumentation equipment (such as flow meters). And after the meeting, the spirit of the meeting was conveyed to the whole company. Please visit our website to learn more news: www.aft-flowmeter.com www.aft-instruments.com

    Corrosion is a phenomenon in which a metal is destroyed by chemical action in its environment. The corrosive nature of the media is a serious threat to the flow meter, and only a few flow meters are not subject to corrosive effects.     a.Corrosive media corrode and damage critical parts of the flow meter that are in direct contact with the media.For example, the electromagnetic flow meter electrode causes leakage of the medium due to corrosion, causing the excitation coil to burn out.      b.The critical components of the flow meter are subject to corrosion by corrosive media for a long time, changing the geometry, resulting in reduced accuracy of the meter.For example, after the rotor of the rotameter is corroded by the fluid, the outer shape becomes small, resulting in a low indication of the flow meter.      c.Reduce the life of the flow meter.      d.Corrosive media leakage, if not found in time and timely treatme...

       The measurement of gas flow mainly refers to the measurement of the flow rate of city gas, natural gas, air duct, boiler and various furnace flue gas, flare gas in petroleum refinery and petrochemical industry. The measurement of these flows is important for economic combustion, environmental protection, and trade settlement.       The characteristics of gas flow measurement：       a.Large calibers, straight sections are often difficult to guarantee.       b.Low static pressure, low flow rate, only a small pressure loss is allowed.       c.The flow rate range varies greatly, requiring a large range of gauges.       d.The fluid contains dust and sometimes contains sticky notes of tears.       e.Some fluids are somewhat corrosive.       f.The composition of the gas varies.       g.The fluid temperature is high.       h.Some flue ...

Electromagnetic flowmeter plays an extremely important role in the measurement of large diameter water flow because of the following characteristics of the instrument. a.No moving parts, high reliability, long-term stability b.No additional resistance. This is especially important for large diameter flow meters. c.The accuracy of measurement is high.When typical products are v=1m/s, the accuracy can reach ±0.3%R or even ±0.2%R.  d.The range is wide.The range of accuracy is guaranteed to be 40:1 and the measurable range is 200:1. e.Straight pipe requirements are relatively low. This is also important for large diameter pipes. There are a variety of flowmeters that require a straight pipe length of 30D. For pipes with a pipe diameter of 1 m or more, it means that a straight pipe section of 30 m or more is necessary, which is difficult to satisfy in most cases. f.There are large diameter products. The largest domestic DN3000 product is available to meet the needs of large-caliber wate...

①There are many kinds of instruments that can be used to measure small flow. The common feature is that the small diameter is easy to be blocked by impurities in the fluid. Therefore, the filter needs to be installed before the flow meter.     ②Calibration is easy.     Due to the small flow measurement range, it is easy to perform off-line calibration or online calibration of the flowmeter in the laboratory. Especially the float flowmeter and the thermal flowmeter.     ③Do not care about pressure loss.     In the measurement of small flow rate, the user generally does not mention the requirement of “the pressure loss is as small as possible”. Therefore, in calculating the opening diameter of the orifice plate, in order to improve the accuracy, a higher differential pressure upper limit is often allowed within the range of the allowable pressure loss. value.    ④Various common instruments are selected for comparison.     Glass t...