WHY CHOOSE Nagman Flow Technology?

Nagman Flow has years’ experience in design, manufacture, install, testing Fully automated water meter test bench which combines DCS, DDC, and PLC process control system. With outstanding stability control, tube layout, accuracy ensurance, and facile operating interface, over 300 units of B28 VTB calibration benches have been installed across nations, not only in meter manufacturer, but also in metrology authorities. Nagman Flow has a pool of experts enabling us to customize configurations as customers’ demand. We desire to set up long term relationship with our global partners by proven of prompt and quality service.

KEY FEATURES:

• Designed for meter size from DN15 up to DN600
• Measure various type of flow meters
• World Class Design
• Fully Automatic or Semi-Automatic
• Flow Test
• Heat Test
• Pressure Test
• Pressure Difference Test
• Pressure Resistance Test
• RTD tests
• Water meter calculator tests
• PC Data Administration

 

WHY CHOOSE Nagman Flow Technology?

 When it comes to Test Bench for Water Meter, Nagman Flow is the one of the most excellence. And we want to explain why you should trust us when we say that choosing a Nagman Flow products equals choosing reliability. In our manufacturing plant, you will find a dedicated research and development team that gives us the ability to face your local needs and challenges head-on–regardless of size or requirements. And thanks to our in-house laboratories and highly skilled engineers, we can develop innovative and user-friendly products faster than ever. A manufacturing capacity reaching millions of units in our plant ensuring on-time delivery, and meanwhile Nagman Flow ensures the highest level of quality and reliability through standards.

What is Flow Meter Calibration?

A flow meter is a test device used to calculate the flow rate of process fluids and gases in industrial plants and facilities. The flow rate denotes to the speed at which a process fluid is moving through pipelines, orifices, or vessels at a given time. Control and instrumentation engineers measure this value to screen and regulate the speed and efficacy of industrial flow processes and devices.

Ideally, test devices must be ‘reset’ from time to time to stop having inaccurate readings. For example, a bathroom scale that indicates 10lbs when nobody is standing on it needs to be recalibrated to specify an initial zero value.

In industrial settings, Liquid Flow Calibration is performed to ensure that measurements are accurate permitting operations to proceed in a safe and timely manner.

What is Flow Meter Calibration?

Flow meter calibration is the procedure of comparing the pre-set scale or metering of a flow meter to a standard scale of measurement and adjusting its metering to conform to the standard. Calibration is a vital aspect of instrumentation in a broad range of industries that require high-accuracy measurements with a tiny percentage of error e.g. in Oil & Gas, Petrochemical, and manufacturing.

Flow meters are calibrated by comparing and adjusting their metering to agree with a predefined standard. Flow meter manufacturers normally calibrate their products in-house after production or send them to an independent calibration facility for adjustment.

Flow meter calibration comprises comparing the measurements of a flow meter in operation to that of a standard flow measurement device under the same conditions and regulating the scale of the flow meter to be in close agreement with the standard.

Process Flow Calibration involves calibration of a flow meter which is at present in use. Periodic recalibration is needed as flow meter readings will often go ‘out of phase’ over time due to variable conditions involved in industrial processes.

The main difference amid the two procedures is that flow calibration is done before the meter is sent out for use while recalibration is done after the flow meter has been in operation for a while. Software tools can also be used to verify the correctness of measurements after a flow meter has been calibrated.

 

 

Gas flow Meter calibration system is the procedure of comparing the pre-set scale or metering of a flow meter to a standard scale of measurement and altering its metering to conform to the standard. Calibration is a vital aspect of instrumentation in an extensive range of industries that require high-accuracy measurements with a minor percentage of error e.g. in Oil & Gas, Petrochemical, and manufacturing.

Flow meters are calibrated by comparing and regulating their metering to correspond with a predefined standard. Flow meter manufacturers normally calibrate their products in-house after production or send them to an independent calibration facility for adjustment.

Gas Meter Calibration System includes comparing the measurements of a flow meter in operation to that of a standard flow measurement device under the same conditions and regulating the scale of the flow meter to be in close agreement with the standard.

Flow meter recalibration comprises calibration of a flow meter which is already in use. Periodic recalibration is crucial as flow meter readings will often go ‘out of phase’ over time due to variable conditions involved in industrial processes.

The main variance between the two procedures is that flow calibration is done before the meter is sent out for use while recalibration is done after the flow meter has been in operation for a while. Software tools can also be used to confirm the accuracy of measurements after a flow meter has been calibrated.

 

Exactly how to Calibrate a Flowmeter?

A flowmeter is a tool that is used to measure the flow rate of a gas or fluid and then shows the flow reading to the instrument operator by means of an indicator, either analog or digital output. In general, flowmeters offer vital measurement data to industry types, from pharmaceutical to Oil & Gas. The flowmeter types used here refer to closed pipe type flowmeters and not open channel systems. The flow rate denotes the average velocity at which a gas or fluid moves through the pipe. To guarantee the flow meter indicates or outputs a reliable and precise reading, the flowmeter must be calibrated consistently.

What is Flow Meter Calibration?

Calibration is the procedure of checking an instrument to check it is correct. Flowmeter calibration is the same method where the measurement is flow. Calibration of a flowmeter can be attained in one of the numerous ways, but generally includes the comparison of the flowmeter against a reference standard of higher precision. Calibration is a crucial part of an instrumentation system to promise a line of traceability of the measurement system is maintained. To understand the flowmeter performance over a period of time, flowmeter calibration must always be conducted on an “As Found” basis so meter drift analysis can be measured. With additional customer agreement, a further adjustment of the flow meter reading may be performed to reduce the flowmeter errors.

Flowmeter Calibration Processes?

We describe the various flowmeter methods and procedures associated with liquid flowmeters. Then will discuss the calibration methods for air and gas flowmeters. Liquid flow calibration can be done in numerous ways, but always includes the comparison against a standard, this may be a primary or secondary reference standard, dependent upon the precision required. The three central calibration principles for the Process flow meter calibration system use Gravimetric, Volume or transfer standard calibration methods. 

Flow Meters and Measurements From Nagmanflow

 As technology advances and new industries are industrialized, the need for precise and detailed measurements only increases. Liquid flow meters are one such ground-breaking tool created to meet this need. The Non-stop development of these instruments has served the advancement of many diverse industries and an ever-increasing variety of applications and flow measurements.

According to its name, flow meters measure liquid or gas flow through a pipe and its rate of change. Various types exist with changing construction to help a wide range of purposes; though, each is built to the best likely fluid dynamic principles. Important technical features and type of meter used commonly depend on the viscosity, temperature, etc.

Today, flow meters have flagged themselves as essential instruments used in many diverse industries. Some of these industries are:

• Ø Fuel and Oil
• Ø Petrochemical
• Ø Chemical
• Ø Pharmaceutical
• Ø Paints, Grease, and Coating
• Ø Food and Beverages

Other than for industry use, liquid flow meters are utilized for educational purposes in university science and engineering programs. They are also used in housing projects to determine the amount of water utilized.

Engineers have created liquid flow meters that can withstand extreme conditions such as outdoor temperature and pressure; irrespective of the weather conditions, we have developed meters that give exact results. Control valves are frequently used in conjunction with these instruments for the extended application of directing the fluid and regularizing velocity, hence maintaining the required pressure level.

The use of liquid flow meters has usage outside of measurements, such as helping to control the velocity of a fluid and its use. They can also save water from being wasted by spotting leakage in pipes.

Ultrasonic Flow Meters From Nagmanflow

 Ultrasonic flow meters use sound waves to define the velocity of a fluid flowing in a pipe. At no flow conditions, the frequencies of an ultrasonic wave diffused into a pipe and its replications from the fluid are the same. Under flowing conditions, the frequency of the replicated wave is different due to the Doppler Effect. When the fluid moves faster, the frequency shift surges linearly. The transmitter routes signals from the transmitted wave and its reflections to regulate the flow rate.

The ultrasonic flow meters send and receive ultrasonic waves amid transducers in both the upstream and downstream ways in the pipe. At no flow circumstances, it takes the same time to travel upstream and downstream amongst the transducers. In flowing settings, the upstream wave will move gentler and take more time than the downstream wave. When the fluid moves faster, the variance between the upstream and downstream times rises.

Ultrasonic flow meters are usually applied to measure the velocity of liquids that permit ultrasonic waves to pass, such as water, molten sulfur, cryogenic liquids, and chemicals. Transit time designs are also accessible to measure gas and vapor flow. Since fluids that do not pass ultrasonic energy, such as many types of slurry, restrict the penetration of ultrasonic waves into the fluid. In ultrasonic flowmeters, opaque fluids can restrict ultrasonic wave diffusion too near the pipe wall, which can reduce accuracy and make the flowmeter to measure wrongly. The ultrasonic flowmeters can stop functioning when an opaque fluid declines the ultrasonic wave to such a level that the wave does not touch the receiver.

 Be sure that the fluid can sufficiently conduct ultrasonic waves, since the flow measurements will not quantity when the ultrasonic waves cannot pierce the flow stream between the transducers. Likewise, ultrasonic waves must be able to infiltrate the fluid for Doppler flowmeters to operate perfectly. While the fluid is moderately opaque and does not enter the fluid, the flowmeters tend to quantity the velocity of the fluid at or near the pipe wall, which can cause substantial measurement error and cause the flowmeter to fail.