ON-OFF VALVES
- ON-OFF Valves
- Normally open when de-energized the valve allows flow to pass from port (1) to port (2), but restricts flow from (2) to (1). When energized the valve blocks flow from (1) to (2) but allows free reverse flow from (2) to (1).
- Normally closed when de-energized the valve blocks flow from port (1) to port (2) and allows reverse flow from (2) to (1). When energized the valve allows flow from (1) to (2) and restricts flow from (2) to (1).
