Modular molding

A method of attaching a tubing to a fitting comprising:

• forming an overmold over an end of the tubing, said overmold having a first section surrounding an end portion of said tubing and a second section extending from said first section and extending beyond said end portion of said tubing in a direction opposite said tubing;
• and
• welding said second section of the overmold to an end of the fitting allowing for fluid flow through said tubing and fitting, wherein said second section defines an inner surface for contacting said fluid flow, wherein said fitting end comprises a fitting distal-most end surface and wherein said second section comprises a distal-most second section end surface, wherein welding comprises axially abutting said distal-most second section end surface to said fitting distal-most end surface.

A method of attaching a tubing to a fitting comprising:

• forming an overmold over an end of the tubing, said overmold having a first section surrounding an end portion of said tubing and a second section extending from said first section and extending beyond said end portion of said tubing in a direction opposite said tubing;
• and
• welding said second section of the overmold to an end of the fitting allowing for fluid flow through said tubing and fitting, wherein said second section defines an inner surface for contacting said fluid flow, wherein the fitting end comprises a recess and wherein the overmold comprises a projection extending transversely from an annular surface of the overmold, wherein the method comprises inserting the projection into the recess prior to welding.

A tubing assembly comprising:

• a first tubing comprising a first overmold formed over an end of the first tubing;
• and
• a fitting comprising a first end, wherein the first overmold is welded to the first end allowing for a fluid flow through said tubing to said fitting, wherein said first overmold comprises a first section surrounding an end portion of said tubing and a second section extending from said first section and extending beyond said end portion of said tubing in a direction opposite said tubing, and wherein said second section is welded to said first end of the fitting, and wherein said second section defines an inner surface for contacting said fluid flow, wherein an axial recess is defined in said first end and wherein the first overmold comprises an axial projection received in said recess, wherein the projection extends transversely from an annular surface surrounding the projection and wherein the recess comprises a first shallower portion and second deeper portion radially outward from the first shallower portion, and wherein the projection abuts the first shallower portion.

A method of attaching a tubing to a fitting comprising:

• forming an overmold over an end of the tubing, said overmold having a first section surrounding an end portion of said tubing and a second section extending from said first section and extending beyond said end portion of said tubing in a direction opposite said tubing, said second section having an annular end surface;
• and
• welding only said second section annular end surface of the overmold to an annular end surface of the fitting allowing for fluid flow through said tubing and fitting, wherein said second section defines an inner surface for contacting said fluid flow, wherein a tubing does not penetrate said fitting.

A tubing assembly comprising:

• a tubing comprising a first overmold formed over an end of the first tubing, said overmold having an annular end surface;
• and
• a fitting comprising a first end having an annular surface, wherein only the first overmold annular end surface is welded to the fitting first end annular surface allowing for a fluid flow through said tubing to said fitting, wherein said first overmold comprises a first section surrounding an end portion of said tubing and a second section extending from said first section and extending beyond said end portion of said tubing in a direction opposite said tubing, and wherein said second section is welded to said first end annular surface of the fitting, and wherein said second section defines an inner surface for contacting said fluid flow, wherein a tubing does not penetrate said fitting.