| 摘要 |
The invention relates to a vacuum pump, in particular a vane cell pump, having a housing in which a suction space is provided, and a housing passage opening into the suction space, wherein a suction non-return valve opening to the outside or into an external vacuum space is arranged in the housing passage, said valve being accommodated in a pot-shaped housing, the pot-shaped housing having a housing bottom and a housing jacket, wherein the housing bottom is integral with the housing jacket.
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