Pipe Union

A pipe union is a fitting designed to join two pipes or fittings while allowing easy disconnection without rotating the connected pipes. It consists of three main parts—a male end, a female end, and a central union nut—that come together to create a secure, leak-tight joint.

Pipe unions are widely used in plumbing, hydraulic, pneumatic, instrumentation, and industrial piping systems, especially where regular maintenance, inspection, or replacement is required. Depending on the thread type and design, sealing may be achieved through metal-to-metal contact, a washer, or an O-ring.