| 摘要 |
<p>The shut-off device (10) has a tube housing part (12) and a relief housing part (14), which can be opened and/or closed on alternate sides by a two-way closing device (18), including a coupling piece (28). The closing device can be locked in at least one position, possibly by means of the coupling piece, which may have a middle part (36) with at least one recess (38) to receive and a resting device (42).</p> |
