What are Multi-passage Rotary Unions?

Multi-passage rotary unions, also referred to as multi-channel or multi-port rotary unions, are specialized mechanical devices utilized for transferring multiple fluid or gas streams between stationary and rotating components of machinery. They are specifically designed to facilitate the passage of various media, such as liquids, gases, or air, through a rotating interface without any leakage or cross-contamination

The rotary unions are composed of multiple passages or channels, allowing for the simultaneous transfer of various media streams. Each passage is typically linked to a separate inlet and outlet port, enabling independent flow control of each fluid or gas. This adaptability makes multi-passage rotary unions suitable for a wide range of applications in diverse industries such as manufacturing, automation, automotive, aerospace, and more.

The main features and benefits of multi-passage rotary unions are including:

1. Versatility: They can accommodate different types of media, including hydraulic fluids, pneumatic air, coolant, lubricants, and more.

2. Compact Design: Despite their ability to handle multiple fluid or gas streams, multi-passage rotary unions are often designed to be compact and space-efficient.

3. Minimized Leakage: High-quality seals and precision engineering ensure minimal leakage between passages.

4. Smooth Rotation: They provide smooth and continuous rotation even under high pressures and speeds due to precision bearings and balanced design.

5. Customization Options: Jarch, we often offer customization options to tailor multi-passage rotary unions to specific application requirements.

So multi-passage rotary unions play a crucial role in facilitating the efficient transfer of multiple media streams in rotating machinery，contributing to the seamless operation of various industrial processes.