Flow meter

Flowmeter is generally installed in a horizontal position. 1, 2, and 3 are respectively the front, behind and by-pass valves and 4 is the flow meter. L≥10D and L>=5D are respectively front and behind pipelines whose lengths are larger than 10 and 5 times of the pipe diameter respectively. Minimum pipe length (diameters): upstream lengths […]

When measuring the volume flow, the density has no effect. If measuring the mass flow, it has something to do with the density. Generally, an electromagnetic flowmeter is a flowmeter that measures the flow rate. The density of different liquids is different. This means to accurately measure the mass flow of different liquid flow meters.

1) The flow meter display non-zero, while the flow velocity is zero. The following reasons and solution methods may be included: Flowmeter was not installed in a strictly horizontal position. Solution: zero set operation. Flow meter has run for a long time and error occurs. Solution: zero set operation. Overloading brings zero offsets. Solution: zero

Measurement flow of liquid, gas, steam, ropy mediums, or ambulatory mediums in low, normal, or high-temperature conditions. Total quantity measurement accuracy is not less than 0.2%. High sensitivity, able to measure very low velocity below 0.8m/s. No movable part, safe and reliable. Wide measure range, bigger than 1:30. Good repeatability, generally 0.1～0.08%, fast to measure.

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When the flow medium flows through the measured tube, the pressure will force on the target because of the flow kinetic energy. It is known that the pressure value forcing on the target can be expressed as： F = cd ρ v2 At / 2 where F = force on the target (N) cd = overall drag coefficient obtained from empirical

Usually, the Target flowmeter display unit has the following options: flow unit m3 flow unit t flow unit L flow unit Kg

In many instances, yearly calibrations are not necessary. If the measurement requirements are high, there are more impurities and dirt in the fluid, and the environmental conditions are poor, the electrode is fouled, which affects the measurement, cleaning, and the measurement is inaccurate after repair. It can be calibrated. If the working conditions are good

The flowmeter should generally be installed behind the valve, because the medium may appear two-phase after passing through the valve, the pipe is not full, and the flow phase is unstable. These conditions will greatly affect the measurement accuracy of the flowmeter, so the flowmeter should be installed in front of the valve. But because

Although the flow meter has been strictly tested before leaving the factory, because of changes in the environment, installation, running condition, etc, errors will occur, and test operation needs to be done using the following methods: Test using standard flow measure equipment Conversion between two flow media The primary test medium in the factory is