Replace Dublin 1690 Series Rotary Unions – Trusted Chinese Manufacturer

Description

Looking for a reliable and cost-effective alternative to the Dublin 1690 Series Rotary Union? As a leading rotary union manufacturer based in China, we specialize in high-performance Dublin 1690-compatible rotary joints that match the original in design, function, and durability—at a fraction of the cost. The Dublin 1690 Series Rotary Union is a versatile multi-passage rotary joint designed for transferring air, coolant, hydraulic oil, or other media between stationary and rotating parts. Our replacement units are engineered with precision, ensuring long service life, smooth rotation, and leak-free performance under demanding industrial conditions.

Manufactured in China with precision, our rotary unions deliver high performance and durability comparable to premium originals, but at a fraction of the price. Perfect for OEMs and industrial users seeking affordable alternatives without compromising quality.

Key Features of Dublin 1690 Series Rotary Union Replacement

Multi-Passage Rotary Design

The Dublin 1690 Series features a multi-port design that allows simultaneous transmission of different media—such as air, water, hydraulic oil, and coolant—through independent flow paths. This makes it ideal for complex automated systems that require multiple fluid or air channels in a single compact unit.

Precision Mechanical Seal Technology

Each passage is sealed with a high-quality mechanical seal made from carbon graphite, silicon carbide, or tungsten carbide, depending on media compatibility. This ensures long-lasting, leak-free operation even under high-speed and high-pressure conditions.

High-Speed, High-Pressure Performance

Our 1690 Series replacement supports speeds up to 3,000 RPM and operating pressures up to 150 PSI, making it suitable for high-speed CNC machining applications such as drilling, tapping, and milling.

Corrosion-Resistant Materials

Constructed with anodized aluminum or stainless steel housing, this rotary union offers excellent resistance to corrosion, wear, and media contamination. Internal components are precisely machined to reduce friction and extend service life.

Fully Interchangeable with OEM Dublin 1690 Series

We guarantee 100% compatibility with the original Dublin 1690 Series rotary unions. Every replacement part is reverse-engineered and tested to meet or exceed OEM standards, while offering significantly lower cost.

Customizable Options Available

Need special thread types, port sizes, or seal materials? We support customized solutions tailored to your system’s specifications, including multi-flow configurations and hybrid sealing technologies.

Why Choose our Dublin 1690 Series Rotary Union?

As a leading Chinese manufacturer specializing in rotary unions, we focus on delivering Dublin 1690 Series Rotary Union replicas that combine affordability with reliability. Our products undergo strict quality checks to maintain performance parity with original brands, catering directly to OEMs, machinery rebuilders, and distributors worldwide.

• Specialized in Rotary Union Manufacturing for 10+ Years
• One-to-One Replacement for Dublin Models
• ISO-Certified Quality Control & CNC Precision Machining
• In-Stock Models for Fast Global Shipping
• Custom Engineering & OEM Branding Support
• Bulk Order Discounts Available

Applications of the Dublin 1690 Series Rotary Union

Our Dublin 1690 Series-compatible rotary unions are widely used in industries where precise, reliable fluid or air transfer is required between stationary and rotating parts. Here are some typical applications:

CNC Machining Centers

Ideal for use in high-speed spindles, automatic tool changers, and coolant-through systems. The rotary union ensures continuous delivery of coolant or cutting fluids during high-speed drilling, milling, or tapping processes.

Plastic Injection Molding Machines

Used to circulate temperature-controlled fluids (hot oil or water) in rotating molds or platens, enhancing molding precision and improving product quality.

Textile Machinery

Supports air or steam transfer in high-speed looms or rotary dryers, ensuring smooth and continuous production in textile operations.

Packaging and Printing Equipment

Used in rotary filling machines, flexographic printers, or rotary cutters, where air or vacuum lines must rotate with moving components.

Hydraulic Systems

Handles the transfer of hydraulic oil in rotating cylinders or actuators, commonly used in mobile equipment, presses, or wind turbines.

Water Treatment Equipment

Employed in filtration or centrifugal systems that require rotation while handling fluids under pressure, such as in dewatering or sludge treatment units.

Food & Beverage Processing

Custom food-grade seals available for rotary steam or water transfer in rotating drums, ovens, or sterilizers in food production lines.

FAQ

Q1: Is your rotary union fully interchangeable with the Dublin 1690 Series?

A1: Yes, our models are precision-engineered to be drop-in replacements for the original Dublin 1690 Series.

Q2: Can you provide 3D drawings or CAD files?

A2: Absolutely. Technical drawings and 3D CAD files are available upon request.

Q3: What’s your lead time for bulk orders?

A3: Normally 5–10 working days, depending on quantity and customization.

Q4: Do you offer a warranty?

A4: Yes, we provide a 12-month warranty covering manufacturing defects.

Q5: Do you ship worldwide?

A5: Yes, we support express air freight and sea freight globally.

📞 Request a Quote Today!

Ready to cut costs without sacrificing quality?
Get in touch with our sales engineers to request a free quote, sample, or technical support for the Dublin 1690 Series Rotary Union.

📧 Email: sales@dannhydraulic.com
🌐 Website: www.dannhydraulic.com
📦 Fast global delivery | OEM branding available | MOQ-friendly