The Dressler coupling is a pipe fitting used to connect two sections of pipe without the use of threads, as opposed to other members of the couplers and adapters family. Unlike the threaded double-tap bushing, Dressler coupling connects ordinary end cast iron pipelines where they have remarkably been a proven solution on all sorts of pipelines for years. This kind of Dresser coupling gives a versatile, watertight link that will certainly last for the lifetime of your pipeline.
The Dressler Coupling is also known as a slip joint. It is a connecting sleeve.
In gas stations, the Dressler Coupling connected the fuel pump to the underground tank in gas stations.