What can rotameters measure?

A rotameter (variable area meter) is a flow meter that measures volumetric flow of liquids and gases. There is no difference between a rotameter and flow meter, and these terms are used interchangeably. The technique for measuring flow is accomplished by a freely moving float finding equilibrium in a tapered tube.

What is the unit of rotameter?

A rotameter is a device that measures the volumetric flow rate of fluid in a closed tube.

What is the range of rotameter?

Product Description

Type Water Rotameter in flow range 0 to 5 LPM
All wetted Parts SS.304
Range ability 10 : 1
Line size ½” BSPM Screwed Connection in SS 304 Grade
Needle Valve MOC SS 304 / SS 316

Where are rotameters used in industry?

The applications of rotameter include the following.

  • Rotameters are used in different industries.
  • These are used where there is a quality air supply is required.
  • This is used where low pressure is necessary.
  • Used in laboratories.
  • Process and oil industries.
  • Used in the medical field for measurement of oxygen flow rate.

Why do we use rotameter?

Rotameter is a reliable, simple, and low-cost flow measuring instrument. So this instrument is used to measure the flow rate of a liquid or a gas. This meter includes a tapered tube through a moving internal float.

Why we use ultrasonic flow meter?

The applications of ultrasonic flow meters include the following. These meters are used wherever chemical compatibility, less maintenance, and low-pressure drop are required. These meters are used to measure the velocity of a liquid through ultrasound to analyze volume flow.

How do you read a rotameter scale?

Look at the bottom of the ball, and see where it lines up with the scale on the side of the meter. This is the flow rate. Rotameters are marked from the top to bottom, increasing to decreasing flow, similar to a thermometer. The scale will vary based on the make of the rotameter.

How do you size a rotameter?

The two basic components of every rotameter are the tapered metering tube and the float. Tube sizes vary from 1/16 to 4 in., with a 1/8–2 in. range being the most common….The Basics of Rotameters.

Q = volumetric flow rate, e.g., gallons per minute
k = a constant
A = annular area between the float and the tube wall
g = force of gravity

Can a rotameter be used in a horizontal pipe line?

Rotameter can be only be used in a vertical pipeline. Moreover, it is useful for a wide range of variation of flow rates.