6-Port with Four-Bolt Flanges
Rotary Union | Hydraulic Swivel
Our 6-port rotary union features four-bolt flanges as part of its design. Also known as a swivel joint, this mechanical device that enables the transfer of hydraulic fluid between stationary and rotating components. Engineered for equipment with complex hydraulic requirements, it provides six flow passages in a single, compact assembly, allowing multiple functions to operate simultaneously.
The four-bolt flange mount delivers a secure, stable connection, while precision-machined construction and premium sealing technology provide smooth rotation and leak-free performance under the rated pressure. This model is designed for strength and durability in high-load, high-duty-cycle applications.
Ideal for large agricultural implements, specialized industrial machinery, and heavy-duty mobile equipment, this 6-port hydraulic swivel offers the versatility to manage multiple hydraulic circuits while maintaining reliable, continuous rotation.
Highlights:
- Six independent hydraulic passages for complex system requirements
- Four-bolt flange mounts for strong, stable installation
- Precision-machined body for accurate fit and long service life
- Sealing system for dependable, leak-free operation
Our rotary unions can be adapted or custom-built to match your specific requirements.
Part Number: YBFH45MRK1

- Number of Ports: 6
- Port Type: Combination of Four-Bolt Flange & SAE ORB Ports
- Operating Pressure (psi): 1300
- Port Sizes: (4) -20 CODE 62, (1) -06 ORB (1 -06 in Spool & 2 -06 in Housing), (1) -16 ORB (1 -16 in Spool & 2 -16 in Housing)
- Overall Length (in): 20.30
- Spool OD (in): 5.75 & 6.00
- Housing OD (in): 7.75
- Torque Arm: Yes – (1) Spool
- Mounting Plate: Yes – (2) Housing
- Weight (lbs): 195
- Slip Ring Adaptable: Yes – Upright, 3/4 Liquid Tight Conn., .75 Dia. Thru Bore
Engineering Files
Access our Library of 3D STEP Files for Rotary Unions and Hydraulic Swivels. Utilize our sample files to integrate and preview our products within your own design projects.
At UEA, we view every question about rotary unions as a chance to innovate. We are dedicated to seamless collaboration. Reach out to us with your inquiries, and let’s work together!