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23 December,2024 07:28

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Metal tube rotameter

The metal tube rotameter is one of the fluid flow measurement tools used to measure the flow of liquids and gases in various industries. This tool is highly regarded due to its high accuracy, ability to withstand high pressures and resistance to harsh environmental conditions, especially in industrial applications. In the following, complete explanations about this type of rotameter are provided.

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Metal tube rotameter structure

Metal tube rotameter includes several main parts:
1. Metal tube: made of stainless steel, brass or aluminum and designed to withstand high pressures and corrosive conditions.
2. Float: It is a conical or spherical piece that is placed inside the flow pipe and moves up or down based on the amount of fluid flow. The floating material can be made of metal, glass or plastic.
3. Tapered tube: inside which the float moves. The tube is wider at the top and gradually narrows towards the bottom.
4. Measuring scale: located in the body of the rotameter and usually calibrated in liters per minute (L/min) or cubic meters per hour (m³/h).

Principle of performance

The rotameter works based on the principle of balance of the forces acting on the float. The fluid enters the conical tube and as the fluid flow increases, the lifting force on the float increases and the float moves higher. When the force of the weight of the float is equal to the force of the fluid, the float remains in a fixed position and indicates the flow of the fluid. The position of the float in the conical tube is directly used as an indicator of the fluid flow rate.

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benefits

High resistance: The metal tube allows the rotameter to be used in environments with high pressure and temperature as well as corrosive conditions.
High accuracy: the possibility of accurate calibration and measurement of low to high currents with high accuracy.
Ease of use: It is easily installed and does not require special maintenance.
Reliability: Due to the solid structure and no need for an external power source.

Applications

Metal tube rotameter in many industries including:
Chemical and petrochemical industries: to measure the flow of corrosive and toxic substances.
Oil and gas industries: in process control systems and measuring the flow of gases and liquids under pressure.
Food and pharmaceutical industries: to accurately control the flow of various fluids in production processes.

Important points in selection and use

Rotameter size: it should be chosen according to the flow rate and type of fluid.
Materials: Depending on the type of fluid (corrosive or non-corrosive), the material of the tube and float is selected.
Pressure and temperature: You must make sure that the selected rotameter is able to withstand the desired pressure and temperature conditions.
Metal tube rotameters are reliable and efficient tools for precise measurement of fluid flow in industrial environments, which are used in many applications due to their special characteristics, including high resistance and measurement accuracy.