| 摘要 |
<p>A isolating stop cock valve comprising a body having an inlet, an outlet, a flow passage through the body connecting the inlet to the outlet, a valve seat across the flow passage, a valve closure member movable relative to the valve seat for opening and closing the flow passage, and operating means connected to the valve closure member for moving the valve closure member between its open and closed positions, the inlet having a non-standard configuration adapted to prevent leaks when the isolating stop cock valve is screwed onto a male threaded nipple.</p> |
