Duplex strainer is mainly used for uninterrupted flow of process fluids.It has Two Basket Strainers and T wo3-way Ball Valves. Here, one strainer isin operation while the another remains stand-by .
The flowpath is changed over bymanually operated Ball Valve.
The clogged screen of isolated straineris removed from housing for cleaningand refitted for next cycle. Meanwhilethe process fluid passes throughclean strainer uninterrupted