| 摘要 |
<p>A group valve for selectively connecting two liquid supply lines separately to a container. The valve comprises a housing with three chambers, one of which is separately connected to the others communicating with a respective liquid line. In each chamber there is a rotary slide, said slides cooperating to at each particular time open one line and close the other. In order to prevent leakage from one line to the other said two chambers communicating with the liquid lines, respectively, are provided with an outlet to the atmosphere, said outlet of each chamber being closed by the rotary slide when the liquid line is open and open when the line is closed.</p> |
