| 摘要 |
A shut-off valve assembly (1) comprising: a body (2) having a chamber (20) with an inlet (21) and outlet (22) for fluid; a valve seat (3); a baffle housing (4); and a valve member (10) having a sealing member (101) for sealing the valve seat (3) and a piston (102) extending from the sealing member (101). The sealing member (101) is movable between a shielded position, whereby the sealing member (101) seals the baffle housing (4) in a fluid-tight manner and an unshielded position whereby the sealing member (101) does not seal the baffle housing (4) and is movable by the fluid stream against the valve seat (3), and a drive comprising a first solenoid (11) that, when energised, moves the sealing member (101) from the shielded position, and a second solenoid (12) that, when energised, moves the sealing member (101) from the valve seat (3).
|
