| 摘要 |
<p>FLUSHING APPARATUS A flushing apparatus comprising, a housing having an inlet, an outlet, a passageway communicating between the inlet and outlet, with the passageway including an insert defining a relatively small bore. The housing has a relatively large bypass channel communicating between the inlet and outlet separately from the passageway, with at least a portion of the channel being defined by a tubular section having flexible walls defining a lumen. The apparatus has a valve member movable between a first closed position with the valve member bearing upon the tubular section such that it blocks the lumen with fluid passing at a relatively slow rate between said inlet and outlet through the bore, and a second open position with the lumen being substantially open such that the fluid passes between said inlet and outlet through the channel at a relatively fast rate.</p> |
