Air Operated Valves, Normally Closed
•
To open the valve: Apply 70 - 100 psig to the actuator port.
•
To close the valve: Vent the pressure to the actuator to 0 psig.
Air Operated Valves, Normally Open
•
To open the valve: Vent the pressure to the actuator to 0 psig.
•
To close the valve: Apply 70 - 100 psig to the actuator port.
Operation (continued)