AN Union RUA

AN Union RUA

↪ This is useful for extending tubing lengths or connecting two lines without needing additional adapters or fittings.
↪ An AN Union, often denoted as RUA, is a fitting designed to join two AN fittings together directly, creating a straight connection without any angle.
↪ This fitting is designed to provide a clean and secure flow for fluid lines in applications where components need to pass through a mounting surface.
↪ The AN Bulkhead Union, often denoted as RUBA, is a specialized fitting used to create a sealed passage through a panel, firewall, or any other barrier while maintaining AN-compatible connections on both sides.
➢ Locking Washer: Sometimes included to prevent the bulkhead nut from loosening due to vibrations or other factors.
➢ Bulkhead Nut: This is a threaded nut designed to secure the fitting to the mounting surface. It often has wrench flats or knurling for easy installation.
➢ O-Ring: In some designs, an O-ring is used to provide a seal between the bulkhead sleeve and the mounting surface, ensuring a leak-free connection.
➢ Bulkhead Sleeve or Body: The bulkhead sleeve or body is the main component that passes through the mounting surface. It usually has male AN threads on both ends to accommodate AN fittings on either side of the barrier.

❂ AN Bulkhead Unions are available in various sizes corresponding to the AN sizing system, allowing for compatibility with different tubing or hose diameters.
❂ They are commonly used in automotive, aerospace, marine, and other industries where fluid lines need to pass through panels or walls while maintaining a sealed connection.

↮ AN-4: Designed for tubing with a 1/4-inch outer diameter.
↮ AN-6: Fits tubing with a 3/8-inch outer diameter.
↮ AN-8: Suitable for tubing with a 1/2-inch outer diameter.
↮ AN-10: Designed for tubing with a 5/8-inch outer diameter.
↮ AN-12: Fits tubing with a 3/4-inch outer diameter.
↮ AN-16: Designed for tubing with a 1-inch outer diameter.
↮ AN-20: Fits tubing with a 1-1/4-inch outer diameter.
↮ AN-24: Suitable for tubing with a 1-1/2-inch outer diameter.
↮ AN-32: Designed for tubing with a 2-inch outer diameter.

Attach a fractional tube to an AN flared tube