Description
- When water is supplied to the pump outlets and pipelines, air accumulations in the system, especially in the pump outlets, narrow the water passage area and cause a decrease in capacity. Single sphere suction cups are used to avoid this drawback. The air formed in the system is filled into the suction cup before the water and discharged through the hole in the cover. The suction cup is then filled with water and lifts the ball upwards, closing the holes and sealing them.