https://www.aoboinstrument.com/

Aobo Instrument, 4C Tower, North Side of Minzhu St. , West of Beihai Road , Hanting Dist, Weifang (2026)

16/09/2026

Why Does Response Time Matter in High-Speed Filling?
In continuous flow measurement, a small delay in the measurement signal may not always be obvious.
In high-speed filling, however, every fraction of a second matters.
A filling cycle typically starts, measures a predetermined quantity of liquid, and then sends a signal to stop the filling process. If the flow measurement or control signal responds too slowly, liquid may continue flowing after the target quantity has already been reached.
The result can be overfilling.
As production speed increases and individual filling quantities become smaller, response performance becomes increasingly important. The flow meter must quickly detect changes in flow and provide a stable output to the filling control system.
Several factors influence the final filling performance:
Flow meter response
Valve opening and closing speed
PLC control logic
Pipeline pressure
Flow stability
Filling quantity
This is why selecting a filling flow meter should not be based on accuracy alone. Dynamic measurement performance must also match the actual filling cycle.
AOBO ABDT-GS is designed for filling and batching applications and provides RS485 and pulse/frequency outputs for integration with filling control systems.
In high-speed filling, measuring accurately is important—but measuring accurately at the right time is what makes the process work.

14/09/2026

Why Is Repeatability So Important in Filling Applications?
In a filling process, accuracy is important—but repeatability is equally critical.

Imagine a filling system set to dispense the same quantity into 1,000 bottles. Even if the average filling result is close to the target, large differences from one filling cycle to another can still lead to underfilled or overfilled products.

This is where repeatability becomes important.

Accuracy describes how close the measured value is to the true value, while repeatability describes how consistently the flow meter can reproduce the same measurement under the same operating conditions.

For batch filling, good repeatability helps maintain:

Consistent filling quantity
Stable batch control
Reduced product giveaway
Less rework and waste
More consistent production quality

This becomes particularly important when filling high-value liquids or operating high-speed production lines, where even a small deviation repeated thousands of times can result in significant material loss.

The AOBO ABDT-GS Filling Electromagnetic Flow Meter is designed specifically for filling and batching applications, with accuracy up to ±0.25% and repeatability of 0.08%.

For filling applications, a good flow meter should not only measure correctly once—it should deliver consistent results cycle after cycle.

Accuracy tells you how close you are. Repeatability tells you whether you can do it again.

11/09/2026

How AOBO Electromagnetic Flow Meters Are Made | From Production to Packing
Every AOBO Electromagnetic Flow Meter goes through careful production, assembly, testing, and final inspection before packing.
Built with care. Tested for reliability. Ready for delivery worldwide. 🌍

10/09/2026

What Is the Difference Between Saturated Steam and Superheated Steam Flow Measurement?
Steam is not simply "steam" when it comes to flow measurement.
Saturated steam and superheated steam have different thermodynamic conditions, and this difference can affect how the flow measurement system should be configured.
Saturated steam exists at a temperature closely related to its pressure. When the pressure changes, the corresponding saturation temperature also changes.
Superheated steam, on the other hand, has a temperature higher than the saturation temperature at the same pressure. Its density therefore depends on both pressure and temperature.
This difference is important when calculating steam mass flow.
A vortex flow meter can measure the flow velocity of both saturated and superheated steam. However, when accurate mass flow or energy calculations are required, the measurement system needs appropriate pressure and temperature information to determine the actual steam density.
For this reason, steam applications should clearly identify:
Saturated or superheated steam
Operating pressure
Operating temperature
Minimum and maximum flow
Required flow unit
Whether mass flow is required
For saturated steam, pressure can provide important information about the steam condition. For superheated steam, both pressure and temperature are particularly important for determining density.
AOBO vortex flow meters can be configured with temperature and pressure compensation for steam applications, helping convert measured flow into a more useful mass flow value under changing operating conditions.
Accurate steam measurement starts with understanding the condition of the steam—not just measuring how fast it flows.

07/09/2026

Why Does a Vortex Flow Meter Need a Straight Pipe Section?
A vortex flow meter relies on a predictable flow pattern to generate and detect stable vortices.
However, the flow profile can be significantly disturbed by elbows, valves, reducers, expanders, pumps, and other pipeline components.
When a vortex flow meter is installed too close to these disturbances, the fluid may enter the measuring section with excessive turbulence or an uneven velocity profile. This can affect vortex formation and make the detected signal less stable.
This is why straight pipe sections are normally recommended upstream and downstream of the meter.
The required length depends on the pipeline configuration and the manufacturer's installation recommendations. A simple elbow and a control valve, for example, can produce very different flow disturbances.
Proper installation should therefore consider:
Upstream elbows
Control valves
Pipe reducers or expanders
Pumps and compressors
Multiple fittings installed close together
Upstream and downstream straight pipe length
A good installation location allows the flow to become more stable before entering the measuring section and helps the vortex sensor detect a more representative signal.
For difficult installations where sufficient straight pipe cannot be provided, the application should be evaluated carefully before selecting the meter.
A good vortex flow meter still needs a good flow profile to perform at its best.

03/09/2026

AOBO Dosing Electromagnetic Flow Meters are produced, inspected, and carefully packed for shipment.
Reliable flow measurement, ready for your filling applications.

03/09/2026

Meet the AOBO ABDT-FTV Intelligent Valve-Controlled Heat Meter — combining flow, heat, temperature, pressure, and valve control in one solution.
NB/4G IoT communication and adaptive control make it ideal for building heating and central air-conditioning applications.

03/09/2026

How Does Pipe Size Affect Vortex Flow Meter Selection?
When selecting a vortex flow meter, one of the first parameters engineers usually provide is the pipe diameter.
But does the flow meter always have to be the same size as the pipeline?
Not necessarily.
The purpose of selecting the meter size is to ensure that the actual flow velocity falls within a suitable measuring range while maintaining acceptable pressure loss and process performance.
For a large pipeline operating at a relatively low flow rate, installing a vortex flow meter with the same nominal diameter may result in insufficient flow velocity. In such cases, a smaller meter size or a reduced-diameter measuring section may provide better measurement performance.
However, reducing the meter size is not always the correct solution. The maximum flow rate, velocity, pressure loss, upstream and downstream piping conditions, and process requirements must all be checked.
For this reason, vortex flow meter sizing should normally be based on the complete operating range rather than simply matching the pipe diameter.
Before selecting a meter, it is recommended to provide:
Pipe size
Minimum flow rate
Normal flow rate
Maximum flow rate
Medium
Pressure
Temperature
With these parameters, the appropriate meter size can be determined according to the actual application.
Pipe size tells us where the meter will be installed. Flow conditions tell us which meter size should be selected.

31/08/2026

Why Is Flow Velocity Important When Selecting a Vortex Flow Meter?
Pipe diameter alone is not enough to determine whether a vortex flow meter is suitable for an application.
Flow velocity is one of the key parameters because vortex shedding must be sufficiently stable for the sensor to detect the flow signal.
When the velocity is too low, the vortex signal becomes weak and the meter may approach its minimum measurable flow. This is especially important when the process normally operates at a small flow rate.
At the other end of the range, excessively high velocity may increase pressure loss, vibration, and mechanical stress on the measuring components.
This is why the actual minimum, normal, and maximum flow rates should always be considered when selecting a vortex flow meter.
For example, a large-diameter pipeline does not necessarily require a vortex meter with the same nominal diameter. If the actual operating flow is too low for that meter, reducing the meter size may provide a better measuring velocity—provided that the maximum flow, pressure loss, and process requirements remain acceptable.
The selection process should therefore consider:
Pipe diameter
Minimum flow
Normal flow
Maximum flow
Fluid type
Operating pressure
Operating temperature
AOBO vortex flow meters can provide a turndown ratio of up to 1:30, helping cover a wider operating flow range when the application conditions are suitable.
The right vortex flow meter is determined by the operating flow range—not pipe diameter alone.

29/08/2026

Can a Vortex Flow Meter Measure Both Steam and Gas?

Vortex flow meters are widely used for measuring steam and gases because the vortex shedding principle is suitable for both applications.

When a fluid passes a bluff body inside the flow meter, alternating vortices are generated downstream. The vortex frequency is related to the flow velocity, allowing the meter to determine the flow rate.

However, measuring steam and gas is not exactly the same.

For steam applications, the flow meter may be required to measure saturated or superheated steam under changing pressure and temperature conditions. If mass flow is required, temperature and pressure compensation can be used to calculate the steam density and obtain a more reliable mass flow value.

For gas applications, the same principle applies, but gas density is also strongly affected by pressure and temperature. This is why compensation is often important when the required output is standard or normalized flow rather than actual operating volume.

Vortex flow meters are therefore commonly used for:

Saturated steam
Superheated steam
Compressed air
Natural gas
Nitrogen and other industrial gases

The key is not simply whether the medium is steam or gas. The operating pressure, temperature, density, flow range, and required flow unit should all be considered during selection.

AOBO vortex flow meters can be configured for steam and gas applications, with temperature and pressure compensation available when required.

One measurement principle can serve different media—but the configuration should match the actual process conditions.

Aobo Instrument

16/09/2026

14/09/2026

11/09/2026

10/09/2026

07/09/2026

03/09/2026

03/09/2026

03/09/2026

31/08/2026

29/08/2026

Address

Website

Alerts

Contact The Business

Shortcuts

Share

Category

Listing takedown request