| 摘要 |
According to the invention there is provided a seal device (1), for example for use with an obturating device such as a cone valve (2) of an intermediate bulk container (3) (IBC) which is set down at a discharge station (4) with a sealing arrangement therebetween so that when a lifting member such as a cone (5) of the discharge station (4) is operated to raise the cone valve (2) and open a flow path for flowable material such as a powder from the IBC through the discharge station (4). In order to provide a seal, the seal device (1) of an elastomeric material, has an annular seal surface (6) and means (7) which enhances sealing by the sealing surface (6).
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