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Working principle of rotameter

What is rotameter?

Rotameters are probably the most commonly used variable space circulate meters. It’s also typically known as rotor flow meter or float move meter. Its operation is straightforward, with a liquid or fuel passing by means of a conical tube. In order for this gas to cross via the tube, it should first elevate a float that’s fastened contained in the tube.

What is working principle of rotameter?

When a rotameter is used with a liquid, the float rises as a outcome of combination of the rate head of the fluid and the buoyancy of the liquid.

With pressure gauge , the buoyancy pressure is negligible and the float moves principally because of the velocity stress head of the gasoline. In both cases, the higher the flow fee, the upper the float moves up the tube. The float moves up and down the tapered tube in proportion to the flow fee and the annular area between the float and the tapered tube wall. As the float moves up via the tube due to its tapered nature, the annular opening increases. As this will increase, the differential strain across the float decreases. When the load of the float is balanced in opposition to the upward drive exerted by the fluid or fuel, the float stabilizes.

The float can then be in comparability with a calibration scale printed on the tube itself or placed next to the tube on the surface of the meter. The calibrated scale will typically give a volumetric flow reading, corresponding to liters per minute (LPM).

Application of rotameter

Rotameters are commonly used to measure the circulate of liquids or gases, with the following application examples:

Laboratory.

Testing and production strains.

Processing business.

Oil business.

Oxygen circulate measurement in medical purposes.

For metering purge circulate (i.e. viscous fluids with suspended particles).

Download our rotameter specifications and manuals

Check rotameter specifications and operation handbook

More articles on flowmeters:

Liquid move meter

Select the best water flow meter for you

Difference between move meter and move transmitter

Mass move fee vs volumetric move ratee
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What is rotameter?

Rotameters are essentially the most commonly used variable space circulate meters. It’s additionally usually known as rotor flow meter or float flow meter. Its operation is straightforward, with a liquid or gasoline passing via a conical tube. In order for this gasoline to pass through the tube, it must first increase a float that is fixed inside the tube.

What is working principle of rotameter?

When a rotameter is used with a liquid, the float rises due to the mixture of the velocity head of the fluid and the buoyancy of the liquid.

With gases, the buoyancy force is negligible and the float strikes largely as a outcome of velocity pressure head of the gasoline. In both instances, the higher the move price, the upper the float moves up the tube. The float moves up and down the tapered tube in proportion to the circulate fee and the annular area between the float and the tapered tube wall. As the float strikes up through the tube because of its tapered nature, the annular opening will increase. As เกจวัดแรงดัน will increase, the differential strain throughout the float decreases. When the load of the float is balanced against the upward drive exerted by the fluid or fuel, the float stabilizes.

The float can then be compared to a calibration scale printed on the tube itself or positioned next to the tube on the surface of the meter. The calibrated scale will sometimes give a volumetric circulate reading, corresponding to liters per minute (LPM).

Application of rotameter

Rotameters are generally used to measure the move of liquids or gases, with the following application examples:

Laboratory.

Testing and production strains.

Processing industry.

Oil business.

Oxygen circulate measurement in medical functions.

For metering purge move (i.e. viscous fluids with suspended particles).

Download our rotameter specifications and manuals

Check rotameter specifications and operation handbook

More articles on flowmeters:

Liquid circulate meter

Select the proper water circulate meter for you

Difference between flow meter and flow transmitter

Mass circulate fee vs volumetric flow feee

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