The Self -priming pumps are widely used where the pumps should be moved frequently or the pump higher than the liquid level.

Magnetic drive
Magnetic drive centrifugal pumps are Seal-less. The driving torque is transmitted by a permanent
magnetic coupling to an internal magnet that moves the impeller. They are energy efficient and can circulate a variety of fluids.

No leakage
Magnetic drive pumps (like most sealless pumps) have a higher initial costs than comparable centrifugal
pumps, but offer reduced operating costs thanks to the lack of seal replacement, cleanup, waste, and
downtime. They are particularly useful for transporting hazardous or expensive chemicals because there is no mechanical seal, eliminating the possibility of leakage.