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Couplers Unions

Couplers Unions

Couplers and unions are types of fittings used in plumbing and piping systems to connect two pipes or sections of piping. They play a crucial role in creating a secure and leak-resistant connection that allows for the flow of fluids through the system. While couplers and unions have similar functions, they have distinct designs and applications. Here’s an overview of couplers and unions:

Couplers:

Couplers, also known as connectors, are fittings designed to directly join two pipes or sections of piping. They come in various designs and sizes to accommodate different types of pipes and specific applications. Couplers are typically used when a permanent connection is desired, as they create a solid and continuous joint between the pipes.

Some common types of couplers manufactured by Conex Metals include:

  1. Slip Coupler:This type of coupler slides onto the ends of the pipes to be joined and is secured with adhesive or solvent cement. It’s commonly used in PVC and CPVC piping systems.
  2. Compression Coupler:Compression couplers feature threaded ends and a compression nut. When the nut is tightened, it compresses a rubber or plastic gasket, creating a tight seal between the pipes.
  3. Push-to-Connect Coupler:These couplers allow for quick and easy connections without the need for tools. Pipes are pushed into the coupler, and internal components secure the pipes in place.
  4. Soldered Coupler:Soldered or sweat couplers are used in Copper piping systems. They are heated, and solder is applied to create a strong and permanent joint.

Unions:

Unions are fittings that consist of two parts, a nut, and a tailpiece, each attached to a separate section of piping. Unlike couplers, unions provide a detachable connection, making them useful when regular maintenance or disassembly is required. Unions allow for easy removal of a section of piping without having to cut the pipe. They are commonly used in situations where access to pipes is necessary or when equipment needs to be replaced or repaired.

Unions have a threaded design and typically feature female threads on both the nut and tailpiece. When the nut is unscrewed, the joint can be separated, allowing the pipe sections to be disconnected.

Applications:

Both couplers and unions are used in various plumbing and piping applications, including water supply lines, gas lines, irrigation systems, and more. The choice between using a coupler or a union depends on factors such as the type of piping material, the need for detachability, and the specific requirements of the system.