| 摘要 |
<p>A fluid flow regulator (12) for regulating flow in tubes of vacuum or blower systems is disclosed. The regulator has a body formed by shaping interconnecting first and second body parts (14, 15) that are movable relati ve to one another wherein in one position flow is allowed only through an inner conduit (13) in a second position allowing fluid to flow into or out of a secondary opening to regulate the flow along the inner conduit and a cage li ke guard (41) surrounding the connection of the first and second body parts (14 , 15) and the secondary opening.</p> |
