Guillemin couplings are one of the most popular piping solutions in the market. They are a reliable way of fastening two pipes together and provide the utmost security. Moreover, they can help you switch between different piping connections with ease.

The Guillemin system was first developed in France and is compliant with EN 14420-8 and NF E 29-572. It is a symmetrical coupling in which identical halves are assembled by joining the lugs and turning the locking ring to ensure a good connection.
Generally, a half coupling without lugs is used for rigid installations (the locking ring of the Guillemin coupling that connects to the installation is only needed to couple 2 coupling halves). On the other hand, a coupling with a locking ring but without lugs is used for hose connection.

This type of coupling is often used in fire hydrants and other water systems, but it is also used for garden and irrigation. It is characterized by no specific male or female end, lugs are on the inside and are usually made of malleable iron or brass.
They are also available in a range of materials, including aluminum and polypropylene. They can be found in a variety of sizes and styles, including hose tails and clamp units. In addition, they are available in various shapes and colors. Moreover, they come with a cap that can close the end and prevent leakage.