Upper nozzles are inserted into the well blocks in ladle bottom or tundish bottom. It is replaced together with well blocks when repairing of ladles and tundish are needed.
Types: There are generally two types-upper nozzles for slide gate set and upper nozzles for tundish exchangeable nozzle.
Ladle upper nozzles are combined with slide gate plate and collector nozzle, Tundish upper nozzles are combined with lower nozzles.