Couplings are An additional well known selection for connecting galvanized pipe without having threads. They can be found in many kinds, like slip couplings, force-fit couplings, and compression couplings. The installation approach may differ slightly according to the form of coupling made use of, but generally requires: Below’s a movie https://www.malleableiron-pipefitting.com/industry-knowledge/how-to-connect-non-threaded-galvanized-pipes.html