OPERATION:
When de-energized, the valve acts as a check valve, allowing flow from ① to ② , while
blocking flow from ② to ① .
When energized, the poppet lifts to open the ② to ① flow path. In this mode, flow is
also allowed from ① to ②
Operation of Manual Override Option:
To override, push button in, twist counterclockwise 180°and release. In this position, the
valve will remain open in a detented condition. To return to normal operation, push button
in , twist clockwise 180°and release. Override will be detented in this position.