Integrated systems and dedicated dispensing components for loading, unloading, dispensing, draining, returning or recovering fluids, including refuelling skids, vessel and truck transfer systems, bulk-water dispensers, container-draining systems, liquid receiving units, condensate-return systems and pipeline pigging or product-recovery systems. Includes filling and jetting nozzles, keg spears, dispensing heads and dedicated recovery components. Standalone pumps, general valves and taps, passive hose or piping assemblies and vessels retain their component families; complete production, packing and treatment lines remain outside this scope.