What is actuator in control valve?

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Tags

1. #hydraulic
2. #valves
3. #types
4. #linear
5. #mechanical
6. #compressed
7. #pneumatic
8. #require
9. #there
10. #actuator
11. #rotary
12. #device
13. #operate
14. #power
15. #actuators
16. #electric
17. #valve
18. #source