Rotary Unions: Key to Efficient Fluid Transmission in Diverse Industrial Applications

Rotary Unions: Key to Efficient Fluid Transmission in Diverse Industrial Applications

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Rotary Unions, also known as rotary joints, are critical components that facilitate fluid transmission between rotating equipment and stationary pipelines. These versatile devices can handle a wide variety of fluid types, each with unique physical and chemical properties that impose specific design requirements. A deep understanding of these fluids and their corresponding design considerations is essential for the correct selection, efficient operation, and long-term stable use of rotary unions.

Common Types of Transportable Fluids

Water

Water is one of the most common fluids used in industrial applications. Rotary Unions are frequently employed in cooling systems, cleaning equipment, and other processes where water needs to be transferred. For instance, in mechanical processing equipment, water is used to cool high-speed rotating tools, and Rotary Unions ensure the seamless introduction of water into the rotating components.

Steam

Steam plays a vital role in industrial heating, drying, and sterilization processes due to its high heat energy content. In industries such as paper manufacturing and food processing, rotary unions are essential for transmitting steam. These rotary unions must be designed to withstand high temperatures and pressures, ensuring reliable performance in demanding environments.

Oil

Various types of lubricating oils and hydraulic oils are indispensable in the lubrication and power transmission systems of rotating equipment. Rotary unions are commonly used in machine tool worktables and industrial robot joints to transmit oil fluids, ensuring proper lubrication and smooth operation of the equipment.

Gas

Compressed air, nitrogen, and other gases are often transmitted through rotary unions. In automated production lines, rotary actuators driven by compressed air rely on rotary unions for air supply. In specialized processes like semiconductor manufacturing, inert gases such as nitrogen are delivered to rotating components via rotary unions, ensuring precise and contamination-free operations.

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