| 摘要 |
<p>Apparatus for dampening fibrous material using the alternating pressure process with an airtight and vapor-tight housing (1), with a vacuum line (6), wherein a first directional valve (7) is provided in the vacuum line (6), the housing (1) has at least one closable opening (2, 21, 23) for loading and unloading the housing (1) and a ventilating line (11), and wherein a third directional valve (12) is provided in the ventilating line (11).</p> |
