Glass Tube Rotameter for Water/Gas/Air

Note: Please contact us for other measure ranges.

Details

Q1: What is a glass tube rotameter?
A1: A glass tube rotameter is a variable area flowmeter used to measure the flow rate of liquids and gases in a transparent, vertically oriented glass tube. It operates based on the principle of a floating element (float) moving up and down within the tube as the fluid flows through it. The position of the float corresponds to the flow rate, which is typically marked on a scale along the tube for easy reading. Glass tube rotameters are widely used in industries like chemical processing, water treatment, pharmaceuticals, and food processing due to their high visibility, corrosion resistance, and accurate flow measurement capabilities.

Q2: What media can the rotameter measure?
A2: The glass tube rotameter can measure a wide variety of media, including liquids, gases, and oils, making it a versatile flow measurement tool. It is commonly used to measure water, air, and other gases, as well as chemical solutions, oils, and other liquid substances. The rotameter's design allows it to handle different fluid properties by selecting the appropriate float material and scale, ensuring precise measurement across various applications in industries like petrochemicals, pharmaceuticals, food processing, and water treatment. Its flexibility in handling multiple media types makes it an essential tool in many industrial settings.

Q3: What are the reasons for large measurement errors?
A3: Short straight pipe sections: If the straight pipe sections before and after the flowmeter are too short, and elbows, valves, and other components that can interfere with the fluid flow state are installed directly in front of the flowmeter, it will affect the accuracy of the measurement.
Incorrect installation: Misalignment between the flowmeter and the connecting pipeline, or improper installation of gaskets, can form a throttling component, affecting the measured medium flow.
Density change of the medium: For liquid media, a large change in density can cause significant errors.

Tips: How does a rotameter work?

A rotameter works by having a fluid (liquid or gas) enter at the bottom of a vertically - mounted tapered tube. Inside the tube is a float. As the fluid flows upward, it exerts an upward force on the float. The position of the float is determined by the balance between the upward force from the fluid flow and the downward force due to the float's weight and friction. The flow rate is related to the position of the float; as the flow rate increases, the float rises higher in the tube. The tube is calibrated so that the position of the float corresponds to a specific flow rate, which can be read from a scale on the side of the tube.

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• Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.