Pump e.g. centrifugal pump, for pumping e.g. milk, has upper and lower grooves allowing two lateral grooves to communicate between them, and connecting lateral grooves with valves that permit entry and exit of cleaning liquid, respectively

摘要

The pump has two lateral grooves (7, 8) arranged on front and rear sides of a pump body. Upper and lower grooves (9, 10) allow the grooves (7, 8) to communicate between them, and connect the grooves (7, 8) with valves (1, 2). The valves are opened to permit entry and exit of cleaning liquid e.g. hot water, respectively during washing phase. An independent claim is also included for a device having a pump.