An Outside Screw & Yoke (OS&Y) globe valve is a linear-motion valve designed for throttling and isolation where the stem threads are located completely outside the valve body and pressure boundary. Supported by an external yoke, the stem features an external screw design that rotates and rises symmetrically with the internal plug during operation. This configuration isolates the stem threads from process fluid corrosion, temperature extremes, and media debris, significantly extending the valve’s service life. The rising stem also serves as a direct visual position indicator, enabling operators to instantly verify the exact open, closed, or throttled percentage of the valve at a glance. OS&Y globe valves are the industry standard for high-pressure steam distribution, chemical processing headers, and critical refinery utility loops. Procurement managers and piping system engineers can ensure absolute process visibility and reduce thread maintenance by importing certified OS&Y globe valves directly from premier manufacturers in China via our advanced B2B commercial platform.
