Couplings are mechanical fittings used to efficiently join two sections of a pipe, tube, or hose. They allow sections to easily and quickly assemble and disassemble, as well as adjust length and alignment. Different types of couplings are available for many applications, such as water, gas, and other liquids. Many types of couplings are used for a variety of different jobs, with the most common being compression, flange, and bayonet.
Compression couplings are most often used in copper, PEX or CPVC piping. These couplings connect two sections of pipe by compressing them together when screwed on. This type of coupling strongest in terms of resisting mechanical forces, as well as being an economical option, but does not do well with temperature and pressure fluctuations.
Flange coupling is used when a mechanical joint is required, as it is designed to resist higher pressures. The most common type of flange coupling is a pipe flange, which is designed to join two sections of a pipe, usually at a 90-degree angle. A flange is a metal ring that is bolted to the pipe to provide a strong mechanical connection, but is often not necessary for basic low-pressure applications. It also creates a tight seal, providing leak protection.
Bayonet couplings are a quick and easy way to connect two sections of a pipe or hose. A bayonet connection looks like a diagonal cut on a cylindrical piece of pipe or hose, which then slides into a female connector on the other pipe or hose. The two pieces are then secured together with a pin or bayonet lock, providing a secure connection. Bayonet couplings are great for use in applications where speed of assembly and disassembly is needed.
No matter what type of coupling is needed for an application, it is important to select the right one for the job. Taking into account the material, pressure, and environment of the machines or pipes being joined, it is easy to pick the perfect coupling for the application. Couplings come in many sizes, materials, and construction styles, so it is important to be sure the correct one is chosen.
Couplings are an important part of any pipe or hose system, providing a strong and reliable connection to help provide efficient fluid transfer. With the right coupling selection, any job can be done quickly, safely, and securely.
