| 摘要 |
A drain system (1) of a flushing tank (2) comprises a drain (8), that extends along an axis (X) and has a drain opening (11) communicating with the inside of the tank (2) and is housed in a seat (6) delimited by a collar (7); and a drain tube (19), provided with an inner conduit (20) communicating with the drain (8); the conduit (20) has a vertical portion (21) that extends along the axis (X) and comprises at least one substantially cylindrical enlarged chamber (24), set along the axis (X) downstream of the drain (8) and radially widened with respect to the drain (8), and a section narrowing (25) set downstream of the enlarged chamber (24). |
