OS & Y Gate Valves, also known as Outside Screw and Yoke Gate Valves, are a type of gate valve that incorporates a distinctive design where the screw mechanism and yoke are located outside the valve body. This design allows for the stem's position to be externally visible, providing a clear indication of whether the valve is open or closed.
The OS & Y design offers several advantages, including ease of maintenance and monitoring. Since the stem's position is visible, operators can quickly assess the valve's status without needing to access the interior of the valve. This feature is particularly beneficial in industries and applications where precise flow control and complete shut-off are essential.