The Hoke 7911 Series multi-port selector ball valves are compact quarter-turn instrumentation valves designed for reliable flow routing and stream selection in demanding gas and liquid applications. These valves feature a precision floating ball design that provides bubble-tight sealing, low operating torque, and extended cycle life under repeated switching conditions. The robust body construction enhances mechanical strength and operational safety in high-pressure environments, while reinforced seat materials ensure dependable leak-tight performance across a broad range of operating conditions. Hoke’s Dyna-Pak® stem sealing system minimizes leakage and reduces maintenance requirements during long-term service. Constructed primarily from 316 stainless steel, the series offers excellent corrosion resistance and compatibility with aggressive industrial media. Typical applications include analyzer systems, calibration panels, sampling systems, process instrumentation, and multi-stream selector duties requiring reliable and repeatable flow path control.