A piping component for a press fitting is provided that includes a body comprising a body inner diameter. A first end includes a first end inner diameter and an inner surface. A sealing recess is positioned between the first end and the body. The inner surface includes a plurality of grooves. The plurality of grooves is integrally formed with the first end and comprises a blunt surface configured for a press fit between a pipe and the piping component. The plurality of grooves comprises a groove inner diameter that is within about ?10% of the body inner diameter and the first end inner diameter. The plurality of grooves includes an angled edge.

Seals for mechanical couplings and fittings have sealing surfaces with one or more projections that form closable leak paths between the coupling or fitting and pipe elements being joined. The leak paths close when the coupling or fitting is properly installed. Otherwise, the leak paths remain open to ensure that improperly installed couplings and fittings can be discovered during pressure testing and before service pressure is applied.

A mechanical coupling for joining pipe elements has a seal. The seal has sealing surfaces with one or more projections that form closable leak paths between the coupling and pipe elements being joined. The leak paths close when the coupling is properly installed. Otherwise, the leak paths remain open to ensure that improperly installed couplings can be discovered during pressure testing and before service pressure is applied.

Provided is a pipe connecting sealing member including a projection part includes a body part that is provided between the outer surface of the pipe and the inner surface of the connector to which the pipe is inserted, and is formed to extend in a ring shape along a circumferential direction; and the projection part that is formed in a spiral shape forming an unlimited orbit and projects along the outer surface of the body part.

Seals for mechanical couplings and fittings have sealing surfaces with one or more projections that form closable leak paths between the coupling or fitting and pipe elements being joined. The leak paths close when the coupling or fitting is properly installed. Otherwise, the leak paths remain open to ensure that improperly installed couplings and fittings can be discovered during pressure testing and before service pressure is applied.

Seals for mechanical couplings and fittings have sealing surfaces with one or more projections that form closable leak paths between the coupling or fitting and pipe elements being joined. The leak paths close when the coupling or fitting is properly installed. Otherwise, the leak paths remain open to ensure that improperly installed couplings and fittings can be discovered during pressure testing and before service pressure is applied.

An annular gasket intended to provide a tight assembly between a first and second pipe after crimping, including an axis of revolution, whereof a section parallel to said axis is a curve formed by a series of an odd number of circle segments C.sub.i connected by apices S.sub.i forming a regular polygon, i varying from 1 to 2*n+1, n being a positive integer greater than or equal to 1, the apex S.sub.i being the center of the circle passing through the apices S.sub.i+n and S.sub.i+n+1 modulo 2*n+1. Such a curve is said to have a constant width. The apices S.sub.i advantageously form a polygon.

Seals for mechanical couplings and fittings have sealing surfaces with one or more projections that form closable leak paths between the coupling or fitting and pipe elements being joined. The leak paths close when the coupling or fitting is properly installed. Otherwise, the leak paths remain open to ensure that improperly installed couplings and fittings can be discovered during pressure testing and before service pressure is applied.

A seal member for sealingly securing a first and a second pipe at a crimp connection, the seal member including a ring-shaped body having an outer diameter and an inner diameter. A plurality of protrusions are formed on the ring-shaped body and extend radially outwardly from the outer diameter. The ring-shaped body permits fluid to pass around adjacent protrusions prior to attaining the crimp connection and inhibits fluid from passing therearound subsequent to attaining the crimp connection.

An annular gasket intended to provide a tight assembly between a first and second pipe after crimping, including an axis of revolution, whereof a section parallel to said axis is a curve formed by a series of an odd number of circle segments C.sub.i connected by apices S.sub.i forming a regular polygon, i varying from 1 to 2*n+1, n being a positive integer greater than or equal to 1, the apex S.sub.i being the center of the circle passing through the apices S.sub.i+n and S.sub.i+n+i modulo 2*n+1. Such a curve is said to have a constant width. The apices S.sub.i advantageously form a polygon.