Conduits for transporting fluids

A conduit for transporting a fluid, the conduit comprising:

• a first collar that comprises:
• a first outer collar portion;
• a first inner collar portion;
• and
• a first weld, hermetically coupling the first outer collar portion and the first inner collar portion;
• a second collar that comprises:
• a second outer collar portion;
• a second inner collar portion;
• and
• a sixth weld, hermetically coupling the second outer collar portion and the second inner collar portion;
• a bellows that comprises:
• a central axis;
• a corrugated outboard ply;
• a corrugated inboard ply, interposed between the corrugated outboard ply and the central axis;
• and
• an interstitial space, interposed between the corrugated inboard ply and the corrugated outboard ply;
• a second weld, hermetically coupling the corrugated inboard ply and the first outer collar portion;
• a third weld, hermetically coupling the corrugated outboard ply and the first inner collar portion;
• a fourth weld, hermetically coupling the corrugated inboard ply and the second outer collar portion;
• a fifth weld, hermetically coupling the corrugated outboard ply and the second inner collar portion;
• and
• a first sensor, communicatively coupled with the interstitial space.