| 摘要 |
<p>Valve element, comprising a frame, at least one inlet and at least one outlet, a passage connecting the inlet and outlet, at least one burst disk or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a piston element provided with a piercing element or the like for piercing the burst disk. The piston element is provided with a passage for a pressure medium, said passage extending axially through the piston element from one first side to one second side, which passage leading through the piston forms a part of the passage of the pressure medium after the burst disk has been pierced.</p> |
