Deublin 55/57 Series Rotary Union Replacements

Searching for affordable Deublin rotary union alternatives without compromising quality?
We manufacture high-quality replacement units at unbeatable prices, with full compatibility and fast delivery. With years of engineering experience and global exports, we deliver high-performance products trusted by industrial clients worldwide.

Our 55/57 Series rotary unions are engineered as high-quality alternatives to Deublin originals, designed to meet stringent industrial demands at a competitive price. Suitable for handling multiple media, including water, steam, thermal oil, and coolant, these rotary unions ensure reliable, leak-free operation in rotary machinery.

Built with precision-engineered bearings and advanced sealing technology, our rotary unions deliver ultra-low torque and long service life, enabling smooth rotation and maintaining system integrity. Whether used in manufacturing, processing, or heavy industry, they integrate seamlessly into existing systems designed for the Deublin 55/57 Series.

Key Features

• 100% interchangeable with the original Deublin 55/57 Series
• Suitable for air, water, and hydraulic media
• Precision sealing technology to ensure leak-free operation
• Available in single- and dual-passage designs

Technical Highlights

Compatibility

Direct replacements designed for Deublin 55 and 57 Series rotary unions, compatible with standard rotor and housing connections.

Media Handling

Suitable for a range of media, including air, water, steam, thermal oil, and coolant fluids.

Seal Technology

Advanced sealing system featuring key-seated silicon carbide gaskets and robust materials to prevent leakage and withstand wear and heat.

Bearing Design

High-precision bearings provide minimal torque load for smooth rotational performance.

Pressure & Flow Capacity

Supports high pressure and flow rates commensurate with Deublin 55/57 Series standards, ensuring operational efficiency.

Feature / Specification	Original Deublin 55/57 Series	Our Replacement (Keypower)
Compatibility	OEM-specific	100% Compatible with Deublin 55/57
Material	Carbon Steel / Stainless Steel	Carbon Steel / Stainless Steel
Sealing Technology	Mechanical Seal / O-Ring	High-Precision Carbon/Graphite + Viton / NBR
Max Speed (RPM)	Up to 3000 RPM	Up to 3200 RPM
Max Pressure (Air/Water)	150–200 PSI	150–250 PSI
Number of Passages	Single or Dual	Single or Dual
Port Thread Types	NPT / BSP	NPT / BSP / Custom Thread
Bearing Type	Precision Ball Bearings	High-Speed Angular Contact Bearings
Seal Material Options	Standard Viton / Optional FKM	Viton, NBR, PTFE (Customizable)
Service Life	1–2 Years (Typical)	1–2 Years (Same as OEM)
Lead Time	4–6 Weeks	3–7 Days (In-stock or Quick-Make)
Price	$$$ (High OEM Cost)	$$ (Up to 60% Less)
Warranty	12 Months	12 Months
After-Sales Support	Through Distributor	Direct Engineer & Export Team

What Affects Deublin Rotary Union Price?

Prices for rotary unions typically vary due to:

• Material type (stainless vs carbon steel)
• Passage configuration
• RPM/pressure requirements
• Seal material and design
• Our rotary unions are designed to offer the same performance, but at a fraction of the cost.

Why Choose Us?

• Factory-direct Deublin rotary union price – no middleman markups
• Global shipping and flexible MOQ
• 24h response from our English-speaking sales team
• OEM & custom manufacturing available

📩 Request a quote today and save up to 60% vs OEM prices!