該系列調節閥的 V 形切口球面閥板在增大調節比的同時，在截流時對密封環還具有剪切作用。因此，適用于要求大調節比的控制系統，以及對含纖維質流 體、料漿類流體的控制，是一種用途廣泛的調節閥。

This series is concentric segmental ball valve for modulating application. V-notch cut at disc makes rangeability larger and creates shearing effect by disc and seal ring. Therefore, suitable to large rangeability service and/or control of fluids with fiber and/or slurry.