Union

Definition

A union is a type of pipe fitting used to join two pipes in line without needing to turn either pipe.

Purpose

The primary purpose of a union is to allow for easy connection and disconnection of pipes for maintenance, repairs, or modifications. Unions are designed to be quickly and easily assembled and disassembled, making them ideal for use in piping systems that require frequent access or changes.

Examples of Use

• Residential Plumbing: Using unions to connect sections of plumbing that may need to be disconnected for repairs or replacement.
• Industrial Piping Systems: Implementing unions in industrial piping to facilitate maintenance and modifications without disturbing the entire system.
• HVAC Systems: Utilizing unions in HVAC installations to allow for easy connection and disconnection of components.

Related Terms

• Coupling: A device used to connect two pipes together.
• Flange: A flat, rimmed, or projecting edge used for joining pipes or equipment.
• Quick-Connect Fittings: Fittings that allow for easy and rapid connection and disconnection of pipes or hoses.

Notes

Unions are available in various materials and sizes to suit different types of piping systems. They are essential components for ensuring the flexibility and maintainability of piping installations.