Fluid fitting arrangement and fluid system

A fluid fitting arrangement (100) comprises a first part (101) of a fluid system and a coupling arrangement (110). The coupling arrangement comprises a tube element (111) for hydraulically coupling the first part (101) of the fluid system with a second part (120) of the fluid system, the tube element (111) being hydraulically coupled with the first part (101) of the fluid system and being hydraulically coupleable with the second part (120) of the fluid system. The coupling arrangement further comprises a threaded sleeve (112) for mechanically coupling the first part (101) of the fluid system with the second part (120) of the fluid system, the threaded sleeve (112) being mechanically coupled with the first part (101) of the fluid system and being mechanically coupleable with the second part (120) of the fluid system.