Advanced Rotating Unions for
Efficient Steam, Hot Oil, and Water Applications

Brought to you by: DirectPneumatics.com

Rotating unions, known as rotary unions, rotary joints, rotary swivels, or rotary couplings, play a crucial role in transferring fluids from stationary sources to rotating equipment. These mechanical devices consist of two key components: a stationary member connected to inlet pipes and a rotating component linking to rotating machines. Bearings ensure smooth rotary motion, while seals prevent fluid leaks and contaminants.

Rotary unions are designed with internal fluid passageways, offered in various configurations. Monoflow unions allow flow in one direction, while Duoflow unions permit fluid to flow in and out. Some unions feature porting for external siphons, facilitating condensate evacuation or heat transfer fluid removal.

Steam and Hot Oil Applications: In applications like paper and textile drying cylinders, rubber mills, mixers, and calenders, specialized rotary unions are required. Steam transmission in paper machine dryer sections, consuming a significant portion of energy costs, can be optimized to enhance efficiency and reduce operating costs.

Hot oil poses a unique challenge, as weeping past seals can lead to coke formation, potentially causing union and equipment failure. Regular inspection and addressing issues promptly are crucial to maintaining optimal performance.

The Deublin Difference – Type C: The Deublin Company, a leading rotating union manufacturer, acquired Barco Seals in 2012, enhancing its portfolio. The Type C rotating union, patented in 1958, remains revolutionary. Its carbon graphite spherical seals allow movement without leakage, and widely spaced bearings offer rigidity and durability.

Advantages of the Type C include a hardened sleeve, nickel-plated end cap for high-pressure life, and a built-in external seal wear indicator for preventive maintenance. The unique design places seals under compression, providing strength against shock, steam, and water hammer.

Configurations: Deublin’s Type C is available in various configurations for steam and hot oil applications, featuring carbon graphite bushings and seals under compression. The design ensures stability, durability, and reliability. The Type C’s wide range of sizes caters to diverse requirements, making it a superior choice in rotary unions.

In conclusion, Deublin’s Type C rotary union offers exceptional performance, surpassing competitive products in steam and hot oil applications. Its robust design, with bearings and seals under compression, ensures a reliable and durable solution, minimizing the risk of unplanned failures. For more information, visit DirectPneumatics.com.