Vertical Selfpriming Side-Channel Pumps Type WPV

The side-channel pumps are selfpriming and operate more economically (better efficiency) than normal centrifugal pumps when handling low flows and high heads. The hydraulically balanced side-channel impeller is keyed to the pump shaft and located in a chamber between the socket and the suction and pressure disc. To achieve selfpriming capability, best efficiency and differential pressure, tight clearances between the rotating impeller and the stationary pump parts are required. Due to these facts, the side-channel pumps are appropriate to solve many pumping problems in industrial processes. They...

Sectional drawing, design PN16 drive motor pump shaft ball bearings radial seal ring leakage control pipe relief valve mechanical seal bearing housing suction and pressure disc SiC-rings impeller socket

Mechanical seal The pumped liquid is sealed against the atmosphere and the drive motor by a single metal bellows seal. The rotating mechanical seal is fixed to the pump shaft by a shaft nut and sealed by a seal ring. The stationary seal face is fitted to the bearing housing via a locating ring and sealed against the atmosphere by a gasket. The drive motor is protected against mechanical seal leakage by a grease lubricated radial seal ring. Possible leakage of mechanical seal is dissipated by the leakage control pipe and therefore visible. radial seal ring leakage control pipe locating ring stationary...

power consumption discharge pressure Relief valve spring without relief valve cap adjusting bolt with relief valve suction discharge Relief valve Contrary to centrifugal pumps, the side channel pumps generate a steep head rise and an increased power consumption at lower flow rates. Power consumption and discharge pressure reach the maximum at closed discharge. To protect discharge pipes and to avoid overload of the motors and unacceptable temperature rise in the pump, an additional relief valve can be fitted to the WPV-pumps. Installation at site, suction piping During the suction phase – when...

Performance range Performance curves of the individual pump sizes, also for 1750 rpm, with NPSH-values and power consumption are available on request. Technical changes reserved. Printed in the Federal Republic of Germany. 120-10.15 S&W