| 摘要 |
A valve (5) for relieving fluid pressure comprises a fluid inlet (8), a fluid outlet (9) and a piston (20) in communication with the fluid inlet (8) and configured to move in response to a fluid pressure at the inlet above a predetermined threshold so as to connect the fluid inlet (8) with the fluid outlet (9) and thereby relieve fluid pressure. One or more dampers (100; 80) are configured to damp the movement of the piston (20). |
