High-Performance 2 Passage Rotary Union for Dual Media Transfer

Description

The 2 Passage Rotary Union is a precision-engineered rotary joint designed to transfer two separate media, such as air, water, oil, or steam, simultaneously through independent channels. This solution is perfect for applications requiring reliable dual-fluid transfer in rotating equipment without cross-contamination or leakage.

With robust sealing technology and independent flow channels, it ensures reliable, leak-free operation even in demanding environments and high-speed applications. Built for high-speed, high-pressure, and multi-directional operations, this rotary union is commonly used in automotive, packaging, food processing, robotics, and industrial automation.

Specification	Details
Number of Passages	2 Independent Channels
Compatible Media	Water, Oil, Air, Steam, Coolants
Operating Pressure	Up to 30 MPa (4,350 PSI)
Maximum Rotational Speed	Up to 10,000 RPM
Temperature Range	-40°C to 220°C (-40°F to 428°F)
Seal Type	Mechanical Seals, Hydrostatic, O-Rings
Material Options	Stainless Steel, Brass, Aluminum
Mounting Options	Flange, Shaft, or Custom

Key Features

Dual Flow Passages

Two completely independent channels for transferring different media at the same time without cross-contamination.

360° Rotation

Smooth, continuous rotation with minimal torque, ideal for automation, robotics, and machine tools.

Versatile Media Compatibility

Supports air, gas, water, hydraulic oil, and coolant; stainless steel versions available for corrosive or water-based media.

Compact & Lightweight Design

Saves space and reduces load on rotating assemblies, perfect for installations with limited space.

Customizable Options

Tailor passage size, connection type (NPT/BSPP), material, and mounting to fit your specific application.

Electrical Slip Ring Integration

An optional slip ring for simultaneous transmission of electrical signals or power alongside fluid transfer.

High Durability

Engineered with high-grade materials and precision bearings for long service life and minimal maintenance.

Customer Pain Points​ & Comprehensive Solution

1. Leakage Woes​ & Leak-Proof Design​

Pain point: One of the most prevalent challenges faced by industries is leakage in rotary unions. Even a minor leak can result in fluid loss, environmental contamination, and potential safety hazards. In applications where high-pressure fluids are involved, leakage can cause significant damage to equipment and disrupt the production process.​
Solution: Our 2 Passage Rotary Union features an innovative sealing mechanism that ensures a tight and secure connection. Utilizing advanced mechanical seals and high-quality elastomers, it effectively prevents fluid leakage, even under high-pressure and high-speed conditions. The precision-engineered components and tight tolerances further enhance the leak-proof performance, providing peace of mind and minimizing fluid loss.​

2. Cross-Contamination Concerns​ & Isolated Fluid Passages

Pain point: When multiple fluids need to be transferred simultaneously, there is a high risk of cross-contamination. This can lead to product quality issues, especially in industries such as food and beverage, pharmaceuticals, and chemical processing, where maintaining the purity of fluids is non – non-negotiable.​
​Solution: With two independent passages, this rotary union enables the simultaneous transfer of two different fluids without the risk of cross-contamination. Each passage is designed with a unique internal structure that isolates the fluids, ensuring that they remain pure and uncontaminated throughout the transfer process. This makes it an ideal choice for industries with strict quality control requirements.​

3. Premature Wear and Tear ​& Durable Construction for Long-Lasting Performance​

Pain point: Traditional rotary unions may experience premature wear due to factors like poor material quality, inadequate sealing, or high-speed operation. Frequent replacement of worn-out components not only adds to the operational costs but also causes unnecessary disruptions in the workflow.​
​Solution: Constructed from high-grade materials such as stainless steel, carbon steel, and corrosion-resistant alloys, our 2 Passage Rotary Union is built to withstand the harshest industrial environments. The robust construction, combined with precision machining, reduces wear and tear, extending the lifespan of the union. Additionally, the use of advanced lubrication systems minimizes friction, further enhancing its durability and reducing maintenance requirements.​

Application Scenarios

Automotive Industry

Efficient dual-fluid transfer for engine cooling, braking, and power steering systems.

Packaging Machinery

Supports air and liquid transfer for synchronized filling and capping lines.

Food & Beverage Processing

Leak-proof rotary transfer of water and steam in hygienic environments.

Robotics & Automation

Smooth dual-media delivery for rotating robotic arms and complex tooling systems.

Aerospace & Defense

Reliable fluid and air transmission in critical aircraft and military equipment.

Why Choose Us?

At Dann, we are committed to delivering top-tier rotary unions that meet the highest industry standards. Our products are backed by comprehensive customer support, including technical assistance, troubleshooting guides, and repair services. Invest in the High Pressure 2-Way Rotary Union for unparalleled performance and reliability in your industrial applications.

🚀 Engineered for Performance

Handles high-pressure, high-speed, and complex dual-media systems with precision.

🔧 Fully Customizable

Tailored solutions to meet your exact operating conditions, port sizes, and material requirements.

💧 Superior Sealing

Provides reliable, leak-free operation with separated channels for safety and efficiency.

🌍 Industry Versatility

Proven across automotive, packaging, aerospace, robotics, and food processing sectors.

🕒 Reduced Downtime

Built with durable materials and low-friction seals to extend service life and minimize maintenance

Frequently Asked Questions (FAQ)

Q1: Can the 2 Passage Rotary Union handle both gas and liquid at the same time?

A: Yes, the fully sealed, independent passages enable simultaneous gas and liquid transfer without cross-contamination..

Q2: Can I customize the thread type and port size?

A: Absolutely. We offer BSP, NPT, and Metric threads, with customizable port sizes to suit your specific system.

Q3: Is this rotary union suitable for high-speed applications?

A: Yes, it supports speeds up to 10,000 RPM while maintaining stable, leak-free performance.

Q4: What is the maintenance cycle for this product?

A: Thanks to its high-quality seals and materials, the rotary union requires minimal maintenance and provides extended service life.

Q5: Do you offer corrosion-resistant options?

A: Yes, we offer stainless steel and specialized coatings for applications involving aggressive media or corrosive environments.

Conclusion

The 2 Passage Rotary Union is a reliable, high-performance solution for simultaneous dual-media transfer in rotating systems. With leak-proof sealing, customizable configurations, and durable construction, it solves common customer challenges like leakage, maintenance downtime, and limited compatibility.

Upgrade your system with our precision-engineered 2 Passage Rotary Union today – built for efficiency, flexibility, and long-term reliability.