UNICON 7000 / 7100 Flush Bottom Valve is a special purpose valve, which is used in piping, reactors and vessels to drain out Abrasives, Slurry, Viscous Material and Semi Solid Media.
This type of valve is attached to the vessels on pad type nozzle. The disks in closed position match with the bottom of the vessel or piping leaving no dead volume.
There are two types of flush bottom valves:
Valve with plug opening inside the vessel
Valve with Plug opening inside the valve
In the former case the stem pushes the plug into the vessel to drain the liquid. While in latter case, the plug gets pulled down into the valve effecting the discharge of material providing a larger flow through path.