Most valve failures are not sudden, but the result of progressive degradation under repeated operating cycles. In high-pressure service, a key issue arises when sealing and motion occur simultaneously, leading to continuous friction, wear, and unstable sealing over time.
RAYS top-entry rising stem ball valves (2–8", Class 300), recently delivered in a batch of 54 units, are designed to address this mechanism. Motion and sealing are separated within the operating cycle: sealing interfaces remain disengaged during rotation and only engage after motion is completed.
By eliminating sliding contact during movement, the design reduces wear accumulation, minimizes galling risk, and ensures more stable sealing performance under cyclic conditions. This is not a material upgrade, but a mechanism-level redesign that defines reliability from the start.