| 摘要 |
<p>A suction valve be placed in a pipe line and intended for flow material, by means of which the flow can be closed, regulated and back flow prevented, whereby the suction valve comprises a movable a locking means (3) placed in a valve house (1) and for it a counter face in the valve house and said locking means (3) can be moved by means of the pressure of the flow material by forming locking means (3) to be as piston parts or cylinder parts in the working cylinder. The pressure of flow material necessary for moving locking means (3) is led into said locking means through an outlet valve (8,9, 10), which outlet valve is fitted inside the locking means (3).</p> |
