A coupling for joining a flanged pipe element to a non-flanged pipe element has segments that are connected end to end and surround a central space. Flange portions extend from one side of the segments. Each segment defines two channels, one of which receives a split ring for gripping the non-flanged pipe; the other channel receives a seal. A flanged tube is also positioned between the segments. The flange of the tube is positioned adjacent to the flange portions of the segments. The seal engages the tube and the non-flanged pipe element. The flange portions of the segments are bolted to the flange of the flanged pipe element and the flange of the tube is captured between the flanged portions of the segments and the flange of the flanged pipe element.

A method is provided for connecting a fitting to a reinforced thermoplastic duct including inserting a first end of the fitting having a plurality of barbs into an end of the duct. A clamp is installed around the duct. The duct is heated to a temperature greater than a glass transition temperature of a thermal plastic material used to form the duct. The duct is restructured to include a plurality of protrusions positioned between the plurality of barbs of the fitting.

A method is provided for connecting a fitting to a reinforced thermoplastic duct including inserting a first end of the fitting having a plurality of barbs into an end of the duct. A clamp is installed around the duct. The duct is heated to a temperature greater than a glass transition temperature of a thermal plastic material used to form the duct. The duct is restructured to include a plurality of protrusions positioned between the plurality of barbs of the fitting.

A rigid conduit (for example, a metal conduit) featuring an electrofusable section secured to the rigid conduit to allow the rigid conduit to be electrofusion welded to another component of the fueling installation, such as a sump or further electrofusable conduit, is provided by the present disclosure. In certain exemplifications, multiple spaced electrofusable sections are provided on the rigid conduit, with corrosion resistant sections spanning the electrofusable sections in certain arrangements.

A hybrid fitting for connecting to pipe end and having a metal base; a connection body for supporting the end of the pipe, the connection body being formed separate from the base body and being made from a plastic material, wherein the connection body has a axial end; the base body comprises an opening for accommodating the axial end; the axial end of the connection body being insertable into the opening such that a form-fitted connection to the base body is formed; a locking element is slid over the connection body to engage with the base body such that the locking element is mechanically locked in an axial direction with respect to the base body; and in the locked state the locking element engages with the inserted connection body such that the inserted connection body is mechanically locked in the axial direction with respect to the base body.

A hybrid fitting for connecting to pipe end and having a metal base; a connection body for supporting the end of the pipe, the connection body being formed separate from the base body and being made from a plastic material, wherein the connection body has a axial end; the base body comprises an opening for accommodating the axial end; the axial end of the connection body being insertable into the opening such that a form-fitted connection to the base body is formed; a locking element is slid over the connection body to engage with the base body such that the locking element is mechanically locked in an axial direction with respect to the base body; and in the locked state the locking element engages with the inserted connection body such that the inserted connection body is mechanically locked in the axial direction with respect to the base body.

An underwater pipe and connector assembly includes an underwater pipe having a pipe body and an annular connecting end section, a connector fixed in the connecting end section, and at least one reinforcing layer having a first fixed cover section fused to and fixedly covering the connecting end section, and a second fixed cover section fused to and fixedly covering an outer circumferential surface of the pipe body immediately adjacent the connecting end section. An outer coil is embedded between the first fixed cover section and the connecting end section and between the second fixed cover section and the outer circumferential surface of the pipe body immediately adjacent the connecting end section.

An underwater pipe and connector assembly includes an underwater pipe having a pipe body and an annular connecting end section, a connector fixed in the connecting end section, and at least one reinforcing layer having a first fixed cover section fused to and fixedly covering the connecting end section, and a second fixed cover section fused to and fixedly covering an outer circumferential surface of the pipe body immediately adjacent the connecting end section. An outer coil is embedded between the first fixed cover section and the connecting end section and between the second fixed cover section and the outer circumferential surface of the pipe body immediately adjacent the connecting end section.

A rigid conduit (for example, a metal conduit) featuring an electrofusable section secured to the rigid conduit to allow the rigid conduit to be electrofusion welded to another component of the fueling installation, such as a sump or further electrofusable conduit, is provided by the present disclosure. In certain exemplifications, multiple spaced electrofusable sections are provided on the rigid conduit, with corrosion resistant sections spanning the electrofusable sections in certain arrangements.

A rigid conduit (for example, a metal conduit) featuring an electrofusable section secured to the rigid conduit to allow the rigid conduit to be electrofusion welded to another component of the fueling installation, such as a sump or further electrofusable conduit, is provided by the present disclosure. In certain exemplifications, multiple spaced electrofusable sections are provided on the rigid conduit, with corrosion resistant sections spanning the electrofusable sections in certain arrangements.