German seim pump seim model seim price

seim pump is a type of pump that uses the rotation of helical blades to lift water axially in a spiral pattern. It consists of a shaft, helical blades, and a housing. During pumping, the pump is placed obliquely in the water so that the inclination angle of the pump's main shaft is less than that of the helical blades, with the lower end of the blades in contact with the water. When the prime mover drives the screw pump shaft to rotate via a variable speed device, water enters the blades, rises along the spiral flow channel, and is discharged. The structure is simple, easy to manufacture, offers high flow rate, low head loss, and high efficiency, and is easy to maintain. However, it has low head and low rotational speed, requiring a variable speed device. It is mostly used for irrigation.