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.