| 摘要 |
<p>The valve has a seal arranged on a seal support such that the seal contacts a valve seat (4) in a gas-tight manner in coupling and closed positions of the support. A gas-tight connection is formed between the seal and a closing surface in the coupling and closed positions of the support. A coupling unit is arranged for detachably coupling the support with a retainer of a valve plate (5) in the coupling position of the support. Another coupling unit is arranged for detachably coupling the support with another retainer of a parking section (8) in the parked position of the support.</p> |
