Dublin 21 Series Air Rotary Union

Description

Dublin 21 Series Air Rotary Union: Product Details

Introducing the Dublin Air Rotary Union 21 Series, engineered for exceptional performance in low-speed air, hydraulic, and brake fluid applications. These Dublin Air Rotary Unions designed to provide reliable fluid transfer while ensuring durability and efficiency, making them essential components in various industrial settings. The Dublin 21 Series Air Rotary Union is a cutting-edge solution designed to ensure seamless fluid transfer in rotating machinery. Engineered for durability and precision, this union supports air, hydraulic oil, and vacuum applications, making it ideal for manufacturing, automotive, and aerospace industries. With a robust aluminum housing and nickel-plated steel rotor, it withstands extreme pressures up to 3000 PSI and temperatures up to 250°F, ensuring long-term reliability in harsh environments.

Key Features of Dublin Air Rotary Union

1. Monoflow Design for Optimal Performance

Minimizes turbulence in low-speed applications, enhancing efficiency in air and hydraulic systems.
Reduces energy loss and improves overall system stability. The Dublin 21 Series incorporates a monoflow design that minimizes turbulence and maximizes fluid transfer efficiency in low-speed environments. This innovation ensures consistent airflow and hydraulic performance, critical for applications such as rotary indexing tables and automated assembly lines. By reducing pressure drops and energy loss, the monoflow configuration extends the operational lifespan of connected machinery while maintaining precise control over media flow.

2. Multi-Media Compatibility

Handles air, hydraulic oil, and vacuum media simultaneously, eliminating the need for multiple fittings
Ideal for complex industrial processes requiring diverse fluid management.

3. Durable Construction for Demanding Environments

Constructed with a lightweight aluminum housing and nickel-plated steel rotor, the Dublin 21 Series withstands harsh industrial conditions, including exposure to corrosive chemicals and extreme temperatures up to 250°F (121°C). The rotor’s 3/4″-14 NPT RH connection and housing’s 1/2″-14 NPT port ensure secure, leak-proof integration into existing pneumatic or hydraulic systems. This durability is further enhanced by widely spaced ball bearings that absorb lateral loads, reducing wear during continuous operation.

4. Versatile Applications Across Industries

In manufacturing, the Dublin 21 Series excels in robotic arms and pneumatic clamping systems, where alternating air pressure and precise motion control are paramount. Its ability to handle hydraulic oil at pressures up to 3,000 PSI makes it ideal for injection molding machines, where consistent fluid delivery ensures product uniformity. The union’s compact design also allows integration into confined spaces within automated packaging lines, reducing downtime for maintenance.

5. Heavy-Duty Construction

Lightweight aluminum housing with corrosion-resistant nickel plating on the steel rotor ensures longevity in high-pressure environments .
Self-lubricating seals reduce friction and maintenance, extending service life.

6. Self-Supported Rotor Stability

Maintains consistent alignment during rotation, preventing leaks and ensuring smooth operation at speeds up to 3000 RPM.
Critical for applications requiring precise fluid control, such as robotics and automation.

7. Low Maintenance & Easy Installation

Requires only 3-5 drops of lubricant monthly, minimizing downtime
Standard NPT threads (3/4″-14 NPT RH rotor, 1/2″-14 NPT housing) ensure quick integration into existing systems.

Why Choose the Dublin Air Rotary Union?

1. Unmatched Durability

Built to withstand 3000 PSI and 3000 RPM, outperforming competitors in extreme conditions.

2. Versatile Design

Handles multiple media types, reducing system complexity and costs.

3. Precision Engineering

Monoflow design and self-supported rotor ensure leak-free operation and minimal maintenance.

4. Industry Compliance

Meets ISO 9001 standards and is CE-certified for global applications.
The Dublin 21 Series Large Rotary Unions are the perfect solution for industries requiring reliable and efficient air transfer systems. With advanced design, robust construction, and versatility across various media types, these rotary unions ensure optimal performance in any application.
Pneumatic Systems: Perfect for applications requiring continuous airflow and high-speed operations.
Industrial Machinery: Used in various machines where air transfer is essential for operation.
Automotive Manufacturing: Ensures efficient air transfer in assembly lines and production facilities.

FAQ of Dublin Air Rotary Union

What are the primary applications of the Dublin 21 Series Air Rotary Union?
The Dublin 21 Series designed for low-speed applications involving air, hydraulic oil, and brake fluid. It  commonly used in industries such as manufacturing, automotive and aerospace for pneumatic systems and hydraulic machinery where reliable fluid transfer is essential.
How does the monoflow design benefit the Dublin 21 Series?
The monoflow design optimizes fluid dynamics by allowing smooth and efficient fluid transfer with minimal turbulence, enhancing operational efficiency and reliability in low-speed applications.
What materials are used in the construction of the Dublin 21 Series?
The rotary union features a lightweight aluminum housing and a nickel-plated steel rotor. These materials provide durability and resistance to corrosion, ensuring long-lasting performance even in harsh environments.
What maintenance requirements are associated with the Dublin 21 Series?
They require minimal maintenance, needing only 3 to 5 drops of lubricant per month through their felt oiler system. This user-friendly lubrication process helps maintain optimal performance while minimizing downtime.
Can the Dublin 21 Series handle multiple media types?
Yes, the Dublin 21 Series is versatile and can accommodate various media types, including air, hydraulic oil, and vacuum. This adaptability makes it suitable for a wide range of industrial applications.
Are there customization options available for the Dublin 21 Series?
Yes, Dublin offers customizable solutions within the 21 Series to meet specific application requirements. Options include different rotor connections and specialized seal materials tailored to unique operational needs.
What sets the Dublin 21 Series apart from other rotary unions?
The Dublin 21 Series stands out due to its specialized seals designed for low-speed applications, durable construction materials, low maintenance requirements, and ability to handle multiple media types efficiently.