Metal tube rotameter with pointer display

Metal tube rotameter with a pointer display is a type of flow meter used to measure the flow rate of liquids or gases in industrial applications.

Here’s an introduction to its features and how it operates:

1. Principle of Operation:

• Variable Area Flow Measurement: The metal tube rotameter operates based on the principle of variable area flow measurement.
• As the fluid flows through a tapered metal tube, the flow rate causes a float (often made of metal or another material) to rise or fall within the tube.
• Pointer Display: The position of the float is directly proportional to the flow rate.
• A pointer attached to the float moves along a scale on the outside of the tube, providing a direct indication of the flow rate.

2. Design and Construction:

• Metal Tube Construction: Typically constructed from durable metals such as stainless steel or aluminum, ensuring resistance to corrosion and compatibility with a wide range of fluids.
• Tapered Tube: The internal diameter of the tube decreases along its length, creating the variable area that allows the float to move freely with changes in flow rate.
• Float and Pointer Mechanism: The float is sized to match the specific flow range of the meter and is designed to move smoothly up or down as the flow rate changes.
• The pointer attached to the float provides a clear visual indication of the flow rate on a linear scale.