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Tube to Union Fittings

Tube to Union fittings are vital components in the piping and tubing systems, designed to securely and efficiently join tube sections. They play a crucial role in connecting lines, allowing for easy installation, disassembly, and maintenance. One of the unique aspects of these fittings is that they include a nut that can be tightened to secure the connection, which makes it simple to detach and reattach when necessary.

These fittings come in a variety of configurations to suit different needs:


  1. Union (U): A straightforward union fitting for connecting two tubes of the same diameter.
  2. Reducing Union (RU): Designed to connect tubes of different diameters, allowing for seamless integration within systems where tube size may vary.
  3. Bulkhead Union (BU): Useful for securely passing a tube through a panel or wall.
  4. Union Elbow (UE): An L-shaped fitting, perfect for redirecting tube routes at a 90-degree angle.
  5. Union Tee (UT): T-shaped fitting for dividing flow in two different directions or merging flows from two different directions.
  6. Union Cross (UC): A cross-shaped fitting allowing for the intersection of four tubes, offering maximum routing flexibility.


Application Features:


  • Versatile and flexible – can accommodate various tube diameters and configurations.
  • Designed for easy installation and disassembly – ideal for systems requiring regular maintenance or reconfiguration.
  • Dependable and secure connection – ensuring reliable and leak-free performance.
  • Suitable for a wide range of applications – used in numerous industries including plumbing, gas handling, and fluid transfer systems.
  • Different shapes allow for specific routing requirements – whether that’s a straightforward connection, a reduction in tube size, a change in direction, or an intersection of flows.
About Us

Karma Instrumentation & Control is a specialist supplier of process control and automation equipment and SI systems, as well as a manufacturer and designer of process and electrical control panels.

Contact Us

• Address: Block A, Unit 3D, Wild Fig Business Park, 1494 Cranberry Street, Honeydew, 2170

• Email:

• Call us: 011 794 2859

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