Abstract: A pipe element has an endform comprising a circumferential groove and a bead. The groove is positioned proximate an end of the pipe element and is defined by a first groove side surface, a second groove side surface, and a floor surface. The groove is positioned between the end of the pipe element and the bead. The bead has a summit and a first bead side surface positioned between the second groove side surface and the summit. When a pipe element is inserted into a coupling, the bead engages an arcuate projection of the coupling to position and align the arcuate projection with the groove, facilitating assembly without manual alignment. When the coupling is tightened, the arcuate projection wedges into the groove, promoting a rigid joint. A roller set has an outer roller and an inner roller with raised features that cooperate to roll form the endform.

Abstract: A pipe element has an endform comprising a circumferential groove and a bead. The groove is defined by a first groove side surface, a second groove side surface, and a floor surface. The bead has a summit and a first bead side surface positioned between the second groove side surface and the summit. When a pipe element is inserted into a coupling, the bead engages a portion of the coupling to position and align the arcuate projection with the groove, facilitating assembly without manual alignment.

Abstract: A pipe coupling has two segments with lugs adapted to receive adjustable fasteners to draw the segments together to join pipe elements. Each lug has an inner surface and a stop surface in spaced relationship. The stop surfaces on corresponding lugs contact each other when the adjustable fasteners are tightened.

Abstract: A mechanical outlet forms a Tee joint by using a strap to cinch a pipe element to a saddle having a duct. One end of the strap and saddle are attached via an adjustable fastener. Angularly oriented action and reaction surfaces on the saddle and strap engage one another when the fastener is tightened to place a tensile load on the strap which substantially conforms to the pipe element and compresses it against the saddle. The opposite ends of the strap and saddle engage one another via a yoke and enlarged head, allowing those ends to be disengaged to permit insertion of the pipe element between strap and saddle.