Filters should be installed with by-pass and block valves to permit by-passing the filter during element changes if the stream cannot be shut down to allow element changes.
Filters should be installed with by-pass and block valves to permit by-passing the filter during element changes if the stream cannot be shut down to allow element changes.
如果支流不能被关闭而允许元素改变，则在元素改变过程中,应该在过滤器上安装旁通阀和截断阀,从而允许元素从旁路绕过过滤器。