Rotary Unions for Hydraulic Oil

One-Channel Hydraulic Unions

Reliable hydraulic rotary unions for high speed, high-pressure applications are available in a variety of mounting configurations. Hydraulic unions are available in many sizes to fit small spaces but are constructed for harsh environments.

1005 Series

The 1/8" single passage rotary union is designed with balanced mechanical seals for a robust and quality solution. The compact, rugged design is suitable for hydraulic applications like clutch and drive systems.

1102 Series

Deublin's 1/4" rotating union for hydraulic fluid is compact but built for durability in applications like variable pitch sheaves. Seals are carbon graphite to tool steel.

1115 Series

Deublin's 3/8" rotary union is ideal for small hydraulic applications. The compact design features seal materials that enhance the union's service life.

1205 Series

The 1/2" Deublin rotary union is a self-supported, monoflow design. The 1205 features lubricated for life bearings for longer life, reducing downtime and maintenance for rotary union hydraulic applications.

250 Hydraulic Series

Deublin's single passage rotary union is designed to transfer large volumes of hydraulic fluid. The 3/4" design features balanced mechanical seals to extend the life of the union and reduce unwanted maintenance

355 Hydraulic Series

Large volumes of media, such as hydraulic fluid, are transferred to a stationary source through Deublin Rotary Unions.

452 Hydraulic Series

Deublin's compact hydraulic design can configured to fit your custom application.

AP Hydraulic Series

The Deublin AP series features balanced mechanical seals for smooth, high-speed rotation and resist early wear. Designed with double ball bearings, the high-pressure rotary union protects itself from contaminated hydraulic fluid caused by leakage. Additional venting also provides bearing protection.

21 Hydraulic Series

Low-speed rotary unions require special sealing with compounded O-Rings for longer seal life in hydraulic fluid applications.

17 Hydraulic Series

The best solution for low speed, hydraulic rotary union is Deublin's 17 series. The 17 series offers specially designed seals and compounded O-rings to ensure a longer life. An economical solution ensuring the rotating union's durability and efficiency.

D Hydraulic Series

The D series design is that of a high-pressure swivel with the ability to handle angular movement. One application is power steering systems on earth moving equipment. This low-speed rotating union is suitable for hydraulic oil or water.

Low-Speed Multi-Passage Hydraulic Unions

Deublin's multi-media Rotary Unions are designed to have independent passages to transfer hydraulic oil and other media without cross-contamination. Every application is unique. Whether a standard rotary union or custom solution is needed, Deublin's team of experts provides reliable and efficient solutions.

2117 Hydraulic Series

Deublin's unique tandem rotary union is a combination of two unions to prevent cross-contamination with independent sealing in each. This rotating union is suitable for several different media combinations that include hydraulic fluid.

1690 Hydraulic Series

The Deu-plex hydraulic rotary union is designed with two 1/4" channels for low-speed applications.

1790 Hydraulic Series

Deublin's 3/8" rotary union is ideal for small hydraulic applications. The compact design features seal materials that enhance the union's service life.

1890 Hydraulic Series

Deublin two-channel and three-channel unions for hydraulic media allow alternating pressurization.

1379 Hydraulic Series

Designed with four independent passages, Deublin's 1379 rotary union operates with various types of media such as hydraulic oil. A vent in between passages eliminates cross-contamination of two types of media. The four passage rotary union is best for applications like clamping and unclamping.

1479 Hydraulic Series

Deublin's 1479 rotary union operates at a higher flow rate with various types of media such as hydraulic oil. The design features widely spaced ball bearings to absorb the large side loads and reduce wear. Some applications requiring four passages are workpiece or spindle cooling.

Multi-Channel Hydraulic Unions

Two passage hydraulic rotary unions design should only be used with the same media as this will extend the seal life and prevent inner passage leaks.