Dry disconnect couplings are intended for spill free (or minimum spill) connection of industrial systems and flexible loading/unloading hose assemblies. Both halves of the coupling have valves that are open and allow flow when the coupling is connected. When the coupling halves are separate, the valves are closed preventing leakage of substances from the system. Depending on the design of the coupling, the valves close automatically upon disconnection, or manually – the valves must be first closed and only then the coupling can be disconnected.
These spill free couplings conform to the recent requirements for safety, environmental protection and reliability, so important when hazardous, toxic or expensive fluids are transferred.The dry disconnect couplings are widely used in road, rail, marine, air transport and in the petrochemical, chemical and pharmaceutical industries.