摘要 |
The valve has a valve housing (10) for attachment to the body or in the tank well with a spherical or cylindrical vol. and opposed openings of different sizes, the smaller with an annular seal seat, a valve element pivotable between open and closed positions, a closure element, a locking element, a valve element drive, a transmission between the drive or valve element and the locking element and a connecting housing (52) between the valve housing and a connection (54) for a tank line in which the closure and locking elements are accommodated.
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