Working principle of rotameter

What is rotameter?



Rotameters are essentially the most commonly used variable area move meters. It’s also often known as rotor move meter or float circulate meter. Its operation is easy, with a liquid or fuel passing by method of a conical tube. In order for this fuel to pass via the tube, it must first elevate a float that’s fixed contained in the tube.

What is working precept of rotameter?



When a rotameter is used with a liquid, the float rises as a result of mixture of the speed head of the fluid and the buoyancy of the liquid.

With gases, the buoyancy force is negligible and the float moves principally due to the velocity pressure head of the gas. In both circumstances, the upper the move price, the higher the float strikes up the tube. The float strikes up and down the tapered tube in proportion to the circulate fee and the annular space between the float and the tapered tube wall. As the float strikes up via the tube as a end result of its tapered nature, the annular opening increases. As this increases, the differential strain throughout the float decreases. When the load of the float is balanced against the upward drive exerted by the fluid or gas, 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 usually give a volumetric move reading, similar to liters per minute (LPM).

Application of rotameter



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

Laboratory.

Testing and production lines.

Processing trade.

Oil industry.

Oxygen move measurement in medical applications.

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 best water circulate meter for you



Difference between move meter and move transmitter



Mass flow fee vs volumetric flow pricee
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What is rotameter?



Rotameters are probably the most commonly used variable area move meters. It’s additionally usually known as rotor flow meter or float flow meter. Its operation is simple, with a liquid or fuel passing by means of a conical tube. In order for this fuel to move via the tube, it should first raise a float that’s fastened inside the tube.

What is working precept of rotameter?



When a rotameter is used with a liquid, the float rises because of the combination of the speed head of the fluid and the buoyancy of the liquid.

With gases, the buoyancy drive is negligible and the float moves principally due to the velocity pressure head of the gasoline. In each cases, 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 space between the float and the tapered tube wall. As the float moves up through the tube due to its tapered nature, the annular opening will increase. As this increases, the differential pressure throughout the float decreases. When เกจวัดแรงดัน of the float is balanced in opposition to the upward pressure exerted by the fluid or gas, the float stabilizes.

The float can then be in comparison with a calibration scale printed on the tube itself or positioned subsequent to the tube on the outside of the meter. The calibrated scale will sometimes give a volumetric flow studying, similar to liters per minute (LPM).

Application of rotameter



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

Laboratory.

Testing and manufacturing strains.

Processing business.

Oil trade.

Oxygen move measurement in medical functions.

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

Download our rotameter specifications and manuals



Check rotameter specifications and operation guide



More articles on flowmeters:

Liquid flow meter



Select the proper water flow meter for you



Difference between flow meter and move transmitter



Mass flow fee vs volumetric circulate feee

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