When a centrifugal pump is operating with a positive suction head, the inner end of the stuffing box is __________.

Question

Accepted Answer

under a pressure and fluid may tend to leak out from the pump along the shaft through the stuffing box

Answer

under a vacuum and air tends to leak into the pump through the shaft stuffing box

Answer

sealed by a vacuum and no leakage will occur

Answer

sealed by the seal cage or pump lantern ring

🔍 Key Concepts