GLASS TUBE ROTAMETER

About GLASS TUBE ROTAMETER

A glass tube rotameter is a flow measurement device commonly used to measure the flow rate of liquids and gases in a variety of applications. It consists of a tapered glass tube with a float inside. As fluid passes through the tube, the float rises or falls depending on the flow rate, and the position of the float indicates the flow rate.

Heres a breakdown of how it works and its key features:

1. Design and Components:

• Glass Tube: The tube is typically made of glass for visibility and durability. It has a tapered design, wider at the bottom and narrower at the top.

• Float: A free-floating object inside the tube, which rises as the flow rate increases. The float typically has a shape (like a ball or disc) that allows it to move freely and follow the flow of the fluid.

• Scale: The tube usually has a graduated scale marked along its length. The scale indicates the flow rate based on the position of the float.

2. How It Works:

• When fluid flows into the bottom of the glass tube, the fluids velocity increases as it moves up the tapered section of the tube.

• As the fluid velocity increases, it exerts an upward force on the float, causing it to rise. The floats position corresponds to the flow rate.

• The relationship between the flow rate and the floats position is governed by the balance of forces: the upward force from the fluids velocity and the downward force due to gravity acting on the float.

• The flow rate is determined by reading the position of the float on the graduated scale.

3. Applications:

• Glass tube rotameters are used in a wide range of industries, including chemical processing, pharmaceuticals, HVAC (heating, ventilation, and air conditioning), water treatment, and laboratories.

• They are commonly used to measure the flow of gases or liquids in small to medium flow rates.

4. Advantages:

• Simple Design: Rotameters are easy to operate, requiring little to no maintenance.

• Visual Indication: The scale provides a direct visual reading of the flow rate.

• Wide Application Range: Suitable for a variety of fluids, including water, air, and many other liquids and gases.

5. Limitations:

• Accuracy: While reliable, glass tube rotameters may not be as precise as digital flow meters, especially for low or high flow rates.

• Fragility: The glass tube can be fragile, making it unsuitable for some high-risk environments or where vibration is common.

• Orientation Sensitivity: The device must be installed vertically for accurate measurement.

Accurate Flow Measurement

The Glass Tube Rotameter delivers reliable and precise measurement of water flow, offering an impressive accuracy of 2%. Built with a 15 cm specimen size and accommodating temperatures up to 80C, this device is ideal for a wide range of industrial and laboratory uses. Whether employed in a production line or a research facility, its ability to record consistent readings is a distinct advantage.


Durable and User-Friendly Design

Constructed from SS304 stainless steel with a sturdy glass tube, this rotameter offers resistance to both corrosion and wear. The manual control mode and lightweight build (1 kg) ensure ease of operation and portability. Its compact dimensions allow for effortless integration into existing systems, making it suitable for distributors, exporters, and manufacturers alike.