| 摘要 |
<p>A float controlled valve comprises a chamber with aligned openings, a detachable cap carrying a sealing washer on one opening and a tube arranged to move under the action of the float in the second opening with a seal ring sealing it. The sealing ring is located in position by means of a detachable holding element accessible when the cap is off. Thus the sealing washer and the sealing ring may be replaced after the removal of the cap.</p> |
