Union pipe fittings are an essential component in any plumbing system, connecting pipes and allowing for easy disassembly for repairs and maintenance. They come in a variety of shapes, sizes, and materials to suit different types of pipes and applications.

Threaded unions: Threaded unions are one of the most common types of union pipe fittings. They consist of two threaded ends that can be screwed together to connect two pipes. Threaded unions are commonly used in low-pressure applications such as residential plumbing systems.

Flanged unions: Flanged unions are another common type of union pipe fitting. They consist of two flanges that are bolted together to connect two pipes. Flanged unions are commonly used in high-pressure applications such as industrial piping systems.

Compression unions: Compression unions consist of two fittings that are joined together with a compression ring or ferrule. The compression ring is tightened onto the pipe, creating a tight seal. Compression unions are commonly used in applications where a leak-proof seal is required, such as gas lines and refrigeration systems.

Welded unions: Welded unions are used to join two pipes together permanently. The pipes are welded together using a specialized welding technique, creating a strong and durable connection. Welded unions are commonly used in industrial piping systems where high-pressure and high-temperature applications are common.

Grooved unions: Grooved unions consist of two fittings that are joined together with a rubber gasket and a series of teeth or grooves. The teeth or grooves on the fittings lock together, creating a tight seal. Grooved unions are commonly used in commercial and industrial piping systems.