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Metal tube float flowmeter can adapt to flow measurement of different fluids
Date: 2025-12-10Read: 14
Metal tube float flowmeter is a widely used instrument for flow measurement, which measures the flow rate of fluids by the position change of the float in the metal tube. As a classic flowmeter, its working principle is simple and its structure is sturdy, making it suitable for flow measurement under various working conditions. The basic working principle is based on the relationship between the fluid velocity and the position of the float in the metal tube. When the fluid enters the flowmeter, its velocity passes under the float and causes the float to rise. When the flow rate increases, the height at which the float rises will also increase until the position of the float stabilizes. At this point, the position of the float is proportional to the flow rate, and the dial on the flowmeter can display the magnitude of the flow rate.
Metal tube float flowmeterStructural characteristics:
1. Metal tube: The metal tube is the main part, usually made of stainless steel or other corrosion-resistant metal materials, with strong pressure resistance and corrosion resistance. The inner diameter design of the metal tube can be adjusted according to the range of the flowmeter.
2. Float: Floats are usually made of materials such as aluminum alloy, plastic, or stainless steel. The shape of a float is often conical or cylindrical, and its rise and fall are controlled by the flow velocity of the fluid. The quality and shape design of the float are crucial for the accuracy and stability of the flowmeter.
3. Diversion device: In order to ensure the stability of fluid flow rate, a diversion device is usually installed inside to ensure that the fluid can flow evenly through the float. The diversion device can reduce the generation of eddies and avoid affecting the measurement results.
4. Scale dial and display device: Float flow meters are usually equipped with a scale dial to display the position of the float, indirectly indicating the flow rate. The design accuracy of the dial directly affects the measurement accuracy of the flowmeter.
5. Connectors: Both ends are usually equipped with joints that can be easily connected to the pipeline system. The joint design should consider the characteristics of the fluid and the working pressure.
Advantages of metal tube float flowmeter:
1. Simple structure and easy maintenance: The structure is relatively simple, and installation and maintenance are relatively convenient. Even in harsh environments, the float flowmeter can maintain a long service life.
2. Strong adaptability: able to adapt to flow measurement of different fluids, including various media such as liquids and gases. This is particularly effective for measuring low flow rates.
3. No need for external power supply: It does not rely on external power supply and can work normally in places without power supply, suitable for some environments with unstable power supply.
4. High precision: With precisely designed floats and dials, high-precision flow measurement can be provided, especially suitable for situations with strict flow requirements.
5. High temperature and high pressure resistance: able to work normally at higher working temperatures and pressures, suitable for demanding industrial applications.