| 摘要 |
Safety valve for the venting circuit of a liquid tank Safety valve for the venting circuit of a liquid tank, comprising: a) a chamber ( 1 ) provided with a cover ( 2 ), which extends at least partly into the tank and is connected via an aperture ( 4 ) to the venting circuit; b) a float ( 7 ), which can slide vertically inside the chamber ( 1 ) and close off the venting aperture ( 4 ) in a high position; and c) a moveable wall ( 3 ), which divides the chamber ( 1 ) into a lower portion ( 1 ') in which the float ( 7 ) slides and an upper portion ( 1 '') which connects with the venting circuit, this wall ( 3 ) being a moveable wall and having the venting aperture ( 4 ), said valve further including an aperture stop ( 13 ) integral either with the moveable wall ( 3 ) or with the cover ( 2 ).
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