QCI valves have become a preferred choice for the pharmaceutical industry due to their high quality construction and design. Unlike QCI competitors, a QCI rotor valve is constructed from a solid high quality 316 stainless steel body where all fittings are welded in place instead of bolted together. This provides less points for failure and greater longevity. In addition, the unique nature of a rotor valve offers a near cavity-free interior when compared to common ball valve designs. Optional flush ports can be provided so that what little cavity does exist can be cleaned without requiring a complete disassembly of the valve.