b. Operation of Spring Return Actuators
Inline position
Before connect the actuator
and valve to the piping system,
check the position of the valve
and the actuator pinion
Port A: Pressurized to open the valve. Actuator rotates CCW for opening.
Port A: Non-Pressurized and springs made their jobs for closing the valve. Actuator rotates CW for closing.
Port A: Pressurized to open the valve. Actuator rotates CCW for opening.
Port A: Non-Pressurized and springs made their jobs for closing the valve. Actuator rotates CW for closing.
Across position
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