| 摘要 |
The suction space is provided with a lid (1) with suction hole (16), around which there is a plate (18), open in the direction of the sealing surface (12) of the lid (1). The bottom of the lid (1), between the suction hole (16) and sealing surface (12) is equipped with a swivel closure (8), which has a fixing surface (9) in the lower part in the direction to the filter face (2) and on the reverse side a strutting arm (15). There are support ribs (5) and a contact surface (6) on the plate (18).<IMAGE>
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