Influence of the Balance Hole Circumferential Position on the Cavitation Performance of the Semiopen Impeller Centrifugal Pump

Table 2

Parameters of balance holes in different schemes.

Scheme	Z	θ (°)	Φ (mm)	D (mm)
1	6	10	6	70
2	6	15	6	70
3	6	30	6	70
4	6	45	6	70