Demag
Coupling union for Demag AC80-1
This coupling union is designed for use in the hydraulic and pneumatic systems of the Demag AC80-1 crane. It facilitates the connection of two pipe or hose sections to maintain system integrity.
Parts diagram
Compatible models
Specifications
- Part number
- 604 623 40
- Brand
- Demag
The coupling union, identified by part number 604 623 40, serves as a connector within the hydraulic and pneumatic circuits of the Demag AC80-1 crane. This component allows for the joining of two sections of tubing or hose, ensuring a connection for the transport of pressurized fluids. The design of this fitting allows for the disconnection and reconnection of fluid lines without the need to rotate the attached piping, which simplifies maintenance, inspection, and component replacement procedures.
This part is compatible with the Demag AC80-1 crane. It is engineered to maintain the seal of fluid circuits, preventing leaks that could impact the operation of the machine systems.
In heavy machinery, coupling unions are used to link different segments of a hydraulic or pneumatic network. By providing a secure interface, these components ensure that fluid pressure is maintained throughout the system while allowing for modular assembly and disassembly of machine components during routine service.

