Patent ID: 8678778
Filing Date: 2014-03-25
Classification: F04D,F16K,Y10T

Abstract:
1. A unit for a flow-ducting system with a pump-drive module, the pump-drive module comprising a drive module, and a pump module having an impeller that can be driven by said drive module, the unit comprising a casing having an inlet side and an outlet side and a moveable shut-off device arranged between them, a flow path between the inlet side and the outlet side being formed in at least one position of the shut-off device, and the pump module being arranged in the flow path between the inlet side and the outlet side, wherein the unit, in at least one further position of the shut-off device, shuts off the flow path in such a way that the shut-off device and the unit casing form an area, which is separated from the flow path and which is sealed off from the inlet side and the outlet side, and the pump-drive module including the impeller is arranged inside this sealed off area.