Duplex Basket Strainers are designed for applications where continuous flow must be maintained whilst cleaning filter baskets. Duplex strainer is a high quality, pressure rated plug valve with integral straining filters. Switching the flow from one filter to the other is accomplished by moving the operating handle through a 90 degree arc. All parts of the valve mechanism are accessible after removing the basket chamber without taking the strainer out of the pipeline. The handle covers the basket strainer chamber when in use and prevents accidental opening of the filter cover.