A common valve type where the stem visibly moves out as it opens, used in piping systems.
OS&Y
Definition
Outside Screw and Yoke
OS&Y means Outside Screw and Yoke.
✓ Verified term
Outside Screw and Yoke
OS&Y means Outside Screw and Yoke.
A common valve type where the stem visibly moves out as it opens, used in piping systems.