CENTRIFUGAL PUMP WITH ADJUSTMENT OF THE CLEARANCE BETWEEN COVER AND IMPELLER

摘要

The invention relates to a centrifugal pump with a pump housing (1), an impeller (2) and a suction nozzle (4) forming a suction opening and insertable into a base plate (3) of the pump housing being arranged in the pump housing (1), the suction nozzle ( 4) is axially displaceably mounted on the base plate (3) of the pump housing in such a way that the suction nozzle (4) and the base plate (3) each have at least one surface (6) which is pivoted relative to the base plate (3) and adjoins one another, so that Rotating the suction nozzle (4), a distance between the impeller (2) and the suction nozzle (4) can be changed, and / or on a radial circumferential surface (12) of the suction nozzle (4), a sealing collar in contact with the base plate (3) when in use (14) is provided.