When a cylinder with this valve configuration is in the upright position, the inlet of the tube is immersed in liquid and the liquid phase will be removed.
当带有这种阀门配置的钢瓶处在垂直位置时，管子的入口浸在液体中，就可以提取液相产品。
2
In general, a foot valve can be mounted if the pump is mounted above the water level of the water inlet so as to start the pump with priming, it can also use the way of vacuum pump water leading.
如水泵安装在进水水位以上时，为了灌泵启动，一般可装底阀，也可采用真空泵引水的方法。
3
Check modules are installed in the valve body with the seats facing the valve inlet.