| 摘要 |
<p>Retention valve (10) suitable for allowing the flow of a fluid according to a first direction (B) and for cutting off the flow according to a second direction (A) which is opposite to the first direction, comprises:
- a first hollow lateral element (11), attachable to a first conduit;
- a second hollow lateral element (21), attachable to a second conduit and coupled to the first lateral element (11);
- stopping means (39) movable inside the first lateral element (11) and the second lateral element (21), suitable for cutting off the flow of the fluid in the second direction (A), by seating on a portion of the internal surface of the second lateral element (21);
- guide means (30) to which the stopping means (39) are coupled and suitable for guiding the movement of the stopping means (39).</p> |
