Patent ID: 8382452

Claim:
A pump arrangement comprising: a pump comprising a pump inlet and a pump outlet which is configured to pump a fluid from the pump inlet to the pump outlet; a safety valve arranged between the pump outlet and an outlet of the pump arrangement and comprising a valve seat and a valve lid; wherein the valve lid is formed in a second integrated part of the pump arrangement, wherein an inlet of the pump arrangement and a fluid region fluidically connected thereto are formed in a third part of the pump arrangement, wherein the second integrated part is arranged between a first integrated part and the third part of the pump arrangement, wherein a pressure in the fluid region comprises a closing effect on the safety valve, and wherein the pump inlet and the inlet of the pump arrangement are connected fluidically, wherein the valve seat, the pump outlet and the pump inlet are patterned in a first surface of the first integrated part of the pump arrangement, wherein the pump is a diaphragm pump comprising passive check valves, and wherein a valve seat of one of the passive check valves at the pump inlet and a valve flap of one of the passive check valves at the pump outlet are patterned in a second surface of the first integrated part opposite the first surface of the first integrated part.