Endsuctionkonfiguration

Endsuctionkonfiguration, commonly referred to as end-suction configuration, describes a centrifugal pump arrangement in which the suction port is located at the end of the pump housing and the discharge outlet is typically on the top or the opposite side. This is one of the most widely used pump configurations for horizontal, single-stage or multistage pumps used in general service.

In this configuration, the flow enters the impeller axially through the end-mounted suction nozzle, is accelerated radially by the impeller, and then collected in a volute or diffuser to be discharged through the outlet. The design is usually compact and simple, with a horizontal orientation, a volute casing, and a bearing and seal assembly integrated in the pump housing. The suction and discharge piping are arranged to the sides of the pump, facilitating straightforward installation and maintenance.

Advantages of endsuction pumps include a simple and robust design, relatively low initial cost, compact footprint, and ease of service. They are well suited for moderate flow rates and heads and for clean liquids with moderate NPSH requirements. Common applications include water supply, HVAC, fire protection, irrigation, and various industrial processes.

Key design considerations involve ensuring adequate Net Positive Suction Head (NPSH), proper priming where required, and careful arrangement of suction piping to avoid air pockets or flow disturbances. Mechanical seals or cartridge seals are typical, and installations should follow relevant standards such as API 610 or ISO 13709/2858, depending on regional practice.