Grooved Fittings

A grooved mechanical joining of two pipes means that a small groove is made at the end of each pipe with a grooving machine. A rubber gasket is fitted over the two pipe ends and around it a two-part coupling is screwed together with two bolts and nuts. The coupling parts, which are designed to fit in the grooves, mechanically lock the pipes together and the rubber gasket makes the connection airtight and watertight.