Microfinish valves can be manually operated by a lever/gear box or it can be automated pneumatically, electrically or hydraulically.
Automated units avoid human interaction with the valve while controlling the flow. Although the valves can be remotely operated, they can also act spontaneously if a dangerous situation is detected, e.g. Emergency Shutdown Devices (ESD).
The automated valve package can be designed as a fail-to-open, fail-to-close, or stand-still as per the system architecture. Automation can also be determined by quarter-turn, multi-turn, or linear operation.